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Fitbit Flex Wireless Activity Sleep Wristband Tangerine Amazon Exclusive by Review Summary ,  Sep 25, 2015

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Fitbit Flex Wireless Activity + Sleep Wristband, Tangerine [Amazon Exclusive]
Report Date: 09/25/2015
Based on 15964 customer reviews
Overall satisfaction: 3.7
Returned or considering to return: 6.6%

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Frequently Mentioned by Customers:


Individual Feature Rating
Wearable4.8   above average
Comfortable4.6   average
Motivating4.6   average
Fitness4.4   average
Monitor4.4   above average
Track4.4   average
Dashboard4.3   average
Wake4.3   above average
Waterproof4.3   above average
Weight4.3   average
Accurate4.1   average
Fit4.0   average
Sleep3.9   average
Tracking3.9   average
Sync3.7   above average
Button3.6   above average
Connect3.5   below average
Reliability3.5   above average
Sleeping3.5   average
Wearing3.5   average
Display3.3   average
Calibration3.2   below average
Quality3.2   average
Experience3.1   average
Support3.1   average
Connection2.8   average
Sensor2.8   below average
USB2.8   below average
Battery2.7   below average
Warranty2.7   above average
Charging2.5   below average
Fastener2.4   below average
Charged2.3   below average
Strap1.8   mediocre
Plastic1.7   below average


Quotes from the Reviews - What People Say about:

Accurate

Accurate:
"Many people complain that the Flex is not accurate in the steps you take, the calories you burn, etc."
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"Everything was exactly as I hoped it would be: I found the tracking of my steps accurate, sleep tracking extremely helpful (I'm terrible at sleeping), and the design of the tracker in the wristband comfortable."
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"It's pretty accurate, and it can be a lot of fun to challenge your friends."
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"I have now ordered one with a digital display as the little light flashing aspect doesn't give me an accurate step count and it's not always easy to run check on the computer...which didn't sync anyway."
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"Had problems with this keeping results accurate!"
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"It's not invasive, it has a good battery life, and it's more or less accurate for what it is."
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"best and most accurate way to track my activity!"
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"It is pretty accurate on steps."
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"It was super easy to set up & it seems to be incredibly accurate."
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"Enjoying it but wonder how accurate it is"
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"It seems to be very accurate, & I love that it tracks my sleep pattern!"
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Battery

Battery:
"Initially, it made it seem like I had to charge it every two days, but once I realized how often the battery sync was wrong, and just trusted in the battery, I've been comfortably wearing it all week before charging over a Saturday or Sunday night."
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"You can leave it in the charger for a couple hours, app indicates the battery is full and the next morning it won't work - battery is dead."
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"However I am disappointed in the battery life."
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"I love it alot but only one problem the battery need to be charged every two days."
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"It's not always easy to tell where battery is."
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"If I didn't care about that aspect, I probably would have gone with a Nobu X by Razer (which, admittedly, seems to have shamelessly copied Fitbit's software wholesale), as it makes far better use of the notification potential some led lights and vibration can bring on one's wrist (at about 2 3rd the price).Fitbit's software is definitely good, though it doesn't appear to sync the battery charge correctly about 30-40% of the time."
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"Initially, it made it seem like I had to charge it every two days, but once I realized how often the battery sync was wrong, and just trusted in the battery, I've been comfortably wearing it all week before charging over a Saturday or Sunday night."
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"The battery lasts long and it's easy to charge."
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"and I wish I would have gotten the one above this one but this one is great it does what is says and life of the battery is nice it lasts for days."
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Bluetooth

Bluetooth:
"I look at my stats at least 3 times a day so having to restart my Bluetooth everything is irritating."
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"The pedometer uses Bluetooth v4.0 Smart (also called Low Energy) and is not backwards compatible with any other version of Bluetooth."
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"The device counts steps pretty well, but frequently loses its Bluetooth connection and fails to show my steps."
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"Only problem I had (and the reason it got returned) was the Bluetooth would stop syncing with it."
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"Also, it is slow to link up with Bluetooth and finally the wrist bank is hard to snap closed."
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"I've also had issues with it syncing up on two different smartphones, saying the bluetooth was incompatible so it has been completely useless when trying to sync it up with the phone."
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"I have no problems with the connectivity to my bluetooth, it updates whenever I need it to."
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"We turned off Bluetooth on the three components in our home that are equipped with it as well."
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"The app works well with my Fire as well and uploads through bluetooth."
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"If every day you want to restart your Fitbit, restart your iOS, turn Bluetooth off and on, and keep staring at the app to see if it will remarkably get beyond looking to synchronize data from a few moments out of your day then go for it."
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"Also, if you have Bluetooth 4.0 it doesn't guarantee that your device is compatible."
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Button

Button:
"It went offline and Fitbit tech support was not able to solve, but web has pointers about the reset button and all was well."
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"Up until just recently I was able to put the device in the charger and hit the reset button on the device to get it back from the dead to its normal behavior mode."
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"You don't need to hit the restart button on your charger but it is there for glitches just in case."
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"All that work to get the unit to go to sleep, when a simple click of a button in the app would solve all my problems."
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"The data was horrible, and when the button deflated after a year it was time to sell it and buy something else."
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"after using the fitbit ultra and being able to see progress with the push of a button I was not happy with the fitbit flex..."
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"MY IDEA for the BEST Flex:Button on side to change to sleepwatch claspPlug in whole band not just the tracker"
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"Quick little reset button and an amazing community if you need help!"
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"It had a GREAT battery life (lasted about two weeks without a charge,and it charged quickly), it was easy to use, and you could easily tell how many steps you'd taken and how many stairs you'd climbed with an easy push of the button."
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"Real control buttons and a display would be a nice tradeoff with the small size."
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"Plus, a button for a light would be nice."
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Calibration

Calibration:
"I also don't think it registers active minutes in the same way so I am wondering about consistency in calibration so overall as little disappointed."
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"not very accurate but I may not have it calibrated very well... not really accurate either when battery charges... so you miss out on few hours a day"
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"This is a horrible device and no way to calibrate it."
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"I don't use my Flex as a end-all-be-all of data (that would be silly, it's a tracker on my wrist, not a perfectly calibrated monitoring device in a lab) but since I use my Flex consistently I consider the data I get to be reliable."
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"Not well calibrated, and no warning at all."
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"Be sure to set it up and calibrate your walking and running strides and you should't be dissatisfied."
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"I think the next generation of Surge is supposed to be easier to calibrate for non-step activities like bicycling."
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"I wanted to put the Flex to the test the other night by going to the gym on a calibrated treadmill I knew was accurate."
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"Distance estimate works reasonably well for walking and for running at the pace you calibrated it to."
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"I've also found it can be quite accurate most of the time and there are ways to calibrate your step length in order to further improve its accuracy."
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"It is fairly accurate and even more accurate if you take the time to calibrate your stride length on the computer."
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Charged

Charged:
"I've cleaned both pieces and it's already dead again and I charged it this morning?"
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"I love it alot but only one problem the battery need to be charged every two days."
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"Dead battery and could not get it charged"
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"Even more frustrating if you know you charged it all night instead of allowing it to track your sleep."
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"The drawback I have found is the battery doesn't stay charged!"
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"It never charged well."
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"Works great and stays charged for several days."
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"The Fitbit is easy to set up and get started, the battery has an average of 5 days before needing to be charged and the food log has a decent assortment of items in its database."
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"Is very accurate but wish the battery stayed charged longer."
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"And, unlike the surge and charge that need to be charged every 3 days, the flex only needs to be charged once a week which is a lot easier if you like me have a crazy busy life.."
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"I find it to be accurate, and it stays charged."
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Charging

Charging:
"Wouldn't respond, trying to charge it did nothing, it was just...dead."
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"After giving up on the Charge for about 2 months, I was resolved to correct the problem."
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"The problem is that they don't hold a charge."
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"Good product but hard to charge after it gets dirty."
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"Had to return it because of a faulty charger, however, a new one was sent immediately."
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"its functionality works as a step tracker, but the charger is one of the worst engineering products I have ever seen."
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"Although, it did track my steps well and I love the app for Fitbit which is why I decided to upgrade to the charge instead of looking into another brand."
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"Initially, it made it seem like I had to charge it every two days, but once I realized how often the battery sync was wrong, and just trusted in the battery, I've been comfortably wearing it all week before charging over a Saturday or Sunday night."
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"The battery lasts long and it's easy to charge."
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"Easy to use, easy to charge."
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"It helps me easily keep track of my exercising via my iPhone, the battery last for days prior to needing charging and it's easy to work."
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Comfortable

Comfortable:
"Everything was exactly as I hoped it would be: I found the tracking of my steps accurate, sleep tracking extremely helpful (I'm terrible at sleeping), and the design of the tracker in the wristband comfortable."
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"The plastic band was a tad stiff at first and hard to clasp, but quickly softened and is more comfortable and easy to use."
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"It was very easy to set up and it's comfortable to wear, I was worried it would rub or be annoying but I forget its there half the time."
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"only complaint I have is that wearing tight shirts isn't so comfortable with the wristband, since its a bit large."
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"They aren't terrible to wear, but also not amazingly comfortable."
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"Not comfortable, and it doesn't seem very accurate."
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"Easy to use, comfortable."
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"Super easy to set up, and it's super comfortable."
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"Pros:Comfortable; easy setup; easy to use; many alternate wristbands available; syncs with MyFitnessPal food app; can challenge friends; incremental step, distance and weight loss badges to keep you motivated; great battery life, quick recharge, tracks sleepCons:I've heard the wristband can come undone, but I use a little fastener ring over the clasp."
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"Overall, it's comfortable to wear, is great for motivation and accurately tracking my walking running from day-to-day and comparing that to other weeks."
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"Small and comfortable and easy to use."
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Computer

Computer:
"Also, the syncer that connects to your computer is flimsy."
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"Hard to get to work with the computer but I'm not very computer savy"
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"Unable to pair it to my computer because it doesn't recognize my connection."
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"It wouldn't sync with my iPhone or computer and I'm not able to see my progress."
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"I have now ordered one with a digital display as the little light flashing aspect doesn't give me an accurate step count and it's not always easy to run check on the computer...which didn't sync anyway."
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"Once I got this connected to my computer things have ran smoothly."
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"So far I love my Fitbit Flex have had no problems with it links easily with my phone and computer"
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"very comfortable to wear and very easy to download info to my computer."
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"The computer chip easily falls out."
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"Ultra easy to,sync to your phone computer to check your progress."
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Connect

Connect:
"Also, the syncer that connects to your computer is flimsy."
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"When I went on a cruise, I had no wi fi so I didn't know how it would update after 7 days of not being able to connect.."
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"The reason why I lost it is because the piece that connects the bracelet would never make a good connect."
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"Tracks steps, sleep, and connects with other friends to challenge and step up each others' games each week!"
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"However, the way the band connects is not a very good engineering idea."
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"THE ONLY THING.....the band wore out after only about 3-4 weeks of wearing it:( I bought another one and the part that connects it broke."
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"It connects to my iphone easily."
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"Love the fact that it connects to my phone the only thing that I would see if we could do was make the bulky ness smaller."
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"Courtesy of a USB wireless sync dongle, which connects to a PC or Mac, or a Bluetooth connection to a compatible smartphone or mobile device, the Flex is able to report your activity in detail with attractive reports on the Fitbit website or mobile apps."
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"Pros:- Charges quickly (~30 min) and lasts a long time (3-5 days for me)- Good app with large ecosystem that connects to tons of other health servicesCons:- It has an LED display and alarms, so it is tracking the time, but you can't set the time to show up on the display."
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"I joined Weight Watchers two months ago and I love how the Fitbit connects to my Weight Watchers profile and loads my activity for me! "
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Connection

Connection:
"Would have given it five stars but the clasp to connect the strap is hard to fasten and comes apart if not checked."
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"I kept getting an error: FitBit connect service has stopped."
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"Hate the clasp- difficult for me to connect it properly."
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"I've had a few problems when it wouldn't connect to my phone."
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"The device counts steps pretty well, but frequently loses its Bluetooth connection and fails to show my steps."
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"Unable to pair it to my computer because it doesn't recognize my connection."
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"I ended up going with Fitbit not because of its features, but because I have numerous friends using them, so the social connection could be considered robust."
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"Easy to connect to my phone."
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"I have no problems with the connectivity to my bluetooth, it updates whenever I need it to."
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"I have cleaned the connections as well as tried to reset and nothing works."
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"It is amazing and I love how it is connected to my phone on the app so I can keep track of my daily activity and steps! "
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Control

Control:
"Terrible quality control on a super popular product."
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"This is pathetic manufacturing... Horrible quality control... and a joke...Please fit your production Fitbit otherwise you're gonna die off pretty soon..."
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"2) Their workmanship quality control is terrible."
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"It also showed me that my biggest problem was portion control, and 'seconds'."
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"If you need to improve your health and also a little bit of push, due to must of the time you're sitting or doing nothing this is a very good tool, but if you already do exercise and want to track all your movements day by day to have better control I don't recommend it."
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"Great concept, but terrible design and quality control."
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"Great tracker...now I can control all of my daily activities"
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"This is a fun way to track food and activities so you can control your weight."
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"I would recommend to anyone looking to take control of their health!"
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"Initial View: Nothing fancy, its a good fitness tracker, minimal interface and controls and does the work."
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"i like it, but i think the calories diary is a litle bit confussing, so i use My Fitness Pal to have a clear control about calories."
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Dashboard

Dashboard:
"If you don't take advantage of the Dashboard, you're robbing yourself of a valuable aspect of what the Fitbit has to offer."
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"1) The band was too cumbersome for me to wear with a dress shirt.2) After a week it started malfunctioning, although it seemed to track OK on the dashboard, flex was all screwed up."
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"You can use the dashboard to enter other activities and it does attempt to add information based on what you enter."
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"*The online dashboard has gliches, which give you wrong information, but these are not such a big deal once you know where to find the correct information."
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"It fits comfortably and the clips hold securely without the need to purchase any of the clip covers (I also bought replacement bands - from Amazon, of course - which came with some clip covers and actually find the square clasp cover to be annoying).I like using the dashboard and it has been very helpful in keeping me motivated."
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"On occasion I will go back and check a certain day and find that the information finally made it to the dashboard, unfortunately by then it's too late."
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"The dashboard is clean and informative and I loved the idea of being able to change wristbands."
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"The FitBit web site and dashboard are straightforward and easy to use and steps you through the entire process."
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"The app is amazing, the FitBit dashboard is great, and I love that it has a silent alarm to wake me up in the morning (so does my boyfriend).I've had it a month, and I've already lost five lbs just by moving more and tracking my food."
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"Again, with digital scales connected to your Dashboard youll also be able to see summaries of your weight change, BMI and more."
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"I appreciate that we have other fit bit users on our dashboard as it gives me the little push I need."
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Display

Display:
"My only complaint is that it doesn't have a display mode other than the 5 dots at the top."
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"I bought it on April 2013 and so far the only issue I have with it is the wristband - it broke after 11 months, at the point where the display is."
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"I think the problem is the module and display is wider than my wrist, but no matter how high it starts out it falls right down the first time I put my arm down."
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"It's also actually somewhat bulky, uncomfortable to wear and the LED display provides no usable information."
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"To get a true count of my steps I must sync it with my smart phone, which is easy, but not as easy as looking at a display."
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"I was not able to fasten it myself, had to have someone else do it, did not realize there is not a display and found the software confusing."
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"Additionally the bands discolor easily and have a habit of splitting near the display window."
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"I decided to return it partly because of the apparent design flaw and partly because I liked the display features and ease of use with the Charge HR."
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"I like it a lot better than something like the Garmin Vivofit (which has a tacky and obvious display) because it is much more minimalist, which is good."
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"One thing to note is the Up products dont have a display like the Fitbit does so if you want to be able to see your progress without looking at your phone, the Up isnt for you."
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"Wife has the Flex and I have the charge and would recommend the Charge because of the display and auto-sleep feature."
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Experience

Experience:
"The Fitbit itself is fine, but to put it on is a horrible experience."
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"I have had this for close to a month now and I only have one complaint and that is the band seems to appear dirty around the edges (my experience with the pink band)."
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"I unfortunately have had the same experience with Flexibit just stopping after 3 months."
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"My bad experience throughout the time I have owned it has always been a problem with the charger."
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"Not a good learning experience."
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"Initially I was really happy with the device until the day problems started (just like a majority of people have faced) - Please scroll down to the bottom to learn why I won't recommend it through a personal experience of mine."
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"I'm overall happy with my experience buying the Fitbit on Amazon!"
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"So it's also hard to complain since I had a good experience with the company itself as well."
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"I'm having a great experience using my Fitbit Flex."
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"-In Comparison to Other Motion SensorsI love my fitbit flex, that being said I am an active individual and have had experience with other motion senors."
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"I've talked to others who have had similar experiences with Fitbit, and we all agree they are truly one of the best companies in the world in terms of their outstanding Customer Service."
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Fastener

Fastener:
"People complained about the fastener; I've had ZERO problems this first month and I use it daily."
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"The only negative thing I have to say is that the fastener can come loose when you least expect it."
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"Works great as a fitness tracker, my only problem is the strap likes to come undone but third party fasteners solve that problem."
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"The biggest fault is the fastener on the wristband."
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"Other reviews refer to the problem with the fastener being difficult."
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"I need to purchase the fasteners or complain to Fitbit and maybe they will send me one."
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"I found if I pull the band slightly it seems to open the slots for the fastener to slide into easier."
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"The fastener design is good but needs tweaking so that it's not so hard."
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"Highly recommend ordering a silicon fastener ring to help make sure unit doesn't come unclasped and fall off."
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"The device itself works well however the clasp band fastener is very poorly designed."
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"I do recommend purchasing a Bitbelt or some other silicone fastener to ensure that you won't lose your Fitbit if it gets caught on something."
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Fit

Fit:
"I love using this in conjunction with the app on my iphone, logging nutrition and also inviting fit bit friends to weekly challenges."
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"However, it is a bit bigger than my old one, thus getting to fit in the many holders I have is challenging."
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"I was very disappointed with the Fit it."
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"I replaced a faulty Samsung Gear Fit with a Fitbit Flex."
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"The small wristband, which was the best fit for me, broke after one week."
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"Strike oneI got the fit bit charge at Christmas and to my disappointment the charge HR came out a month later."
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"If you already wear a watch or have a GPS one that you normally wear the Fit Bit flex is just ideal to complement it."
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"It fits good and I barely notice it on my arm."
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"Love my fit bit!"
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"She had very tiny wrists and it fits nicely."
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"It's a great tool if you want to get fit! "
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Fitness

Fitness:
"Save a lot of time and frustration and buy another fitness device! "
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"I am so disappointed, because when this product is working, it is the best fitness tracker I have owned."
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"I bought the Fitbit flex a few months ago to take part in my company's fitness challenge."
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"Not only am I now able to track my fitness, I'm so much more motivated!"
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"This is a very good fitness tracker, but not great."
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"I purchased my flex in an attempt to re-start my fitness goals after giving birth."
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"Owner is having a great time with it and easily keeps track of activity and fitness levels."
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"The Fitbit Surge costs a lot more, but is superior in all ways against all other fitness watches or trackers."
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"Pretty cool for keeping track of basic Fitness activity."
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"I am so disappointed, because when this product is working, it is the best fitness tracker I have owned."
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"works great and helps me keep up with my fitness routine and steps"
_

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Monitor

Monitor:
"My low rating is for wristband monitors in general, and I suspect that most of the other fine wristband monitors would get the same complaints from me."
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"Having been an adopter of the step monitors (the clickety clack annoying step counters that go on the waistband) I am so pleased with not only the design and sturdiness of the Flex, it's just cool to be able to set goals, monitor sleep, monitor calories in vs out (on their website), and it's just fun to try to beat my goals and make new ones."
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"I have gone through several heart rate monitors because of excessive sweating, and the huge benefit of the Flex is its water resistance."
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"In time these Activity monitors have problems."
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"However, it seems to fit a sweet spot missing between activity monitors like pedometers and food & activity logging apps like MyFitnessPal."
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"Love that it monitors my sleep patterns also."
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"Easy to set up and use and she monitors it all on her smartphone"
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"Other than that, the flex itself is great because it monitors my activity and digs into my competitive nature so that I force myself to be more active."
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"Pretty cool technology - monitors things I didn't even knew it could."
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"I don't feel as though it monitors sleep well though."
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Motivating

Motivating:
"While I loved it for it's purpose of tracking steps and motivating me to be a more active person, the clasp is absolutely ridiculous."
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"Great motivator to make you get up and move and fun challenges with friends."
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"We have a work challenge group going and it's really motivating everyone to move more."
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"The challenges are also motivating to compete with your friends."
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"I love the sleep tracking feature and the friend challenges are really motivating!"
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"Very motivating love that you have fitbit friends and can join challenges."
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"Couple it with the app and the MyFitnessPal app and it's a great motivator, especially since the sync is so easy and one always knows where one stands."
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"This product is so easy to use and is a great motivator for keeping active."
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"Excellent motivator to get fit and stay healthy for me, my mother, and quite a few of my friends."
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"It goes everywhere with me and is a good walking motivator."
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"I returned it and purchased the Fitbit One, which is great, calculates accurately and is very motivating."
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Movement

Movement:
"sadly my girlfriend is not happy with this as it seems not to track all the movement etc.."
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"Its not very accurate to your movements for example, I went on a 6 mile run and it only recorded 5.2 miles."
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"The downside is that it counts wrist movement as steps so that final number at the end of the day may not be so accurate."
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"The only problem I have is that it counts arm movements as steps even if you are sitting still."
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"In order to avoid missing important movement, I keep the charger at work and put it on for a couple hours during a time which I'll be at my desk."
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"When you hold onto the handles of the treadmill, the step count may not be accurate without the combination of arm and leg movement."
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"My Flex is on my left (non-dominant) hand, and my results are well within my expectations for other movement."
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"It's a great tool to keep track of your daily movement...it's great way to keep track of exactly what you do and how many steps you take."
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"This pretty much measured the movement of your arm."
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"Effective at increasing your movement awareness."
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"Love how the FitBit Flex tracks your movement and you are able to track calories by easily using a smartphone."
_

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Plastic

Plastic:
"The plastic doesn't allow the skin to breathe, and can be irritating at times."
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"Also, the shape of the device is somewhat awkward so it doesn't fit well against your wrist and the top part is hard plastic so it isn't immediately comfortable and it takes some time to get used to the feel of it."
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"The plastic band was a tad stiff at first and hard to clasp, but quickly softened and is more comfortable and easy to use."
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"I like learning how many miles I have walked each day (hoping its accurate, but have not been able to prove it yet).While it came with two wrist bands, both have broke in less than 3 months the rubber plastic material doesn't last."
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"I have replaced the wristband a couple of times because the plastic does degrade stretch out a bit."
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"My wife has it, all I hear is complaints up until this morning ( 4 months in... ) Now its dead in the water, non-functional plastic wrist strap."
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"The good news is that the wrist strap is comfortable, is unlikely to cause irritation, and fixes securely to your wrist with two plastic pins you should find the Flex very comfortable and secure most of the time, youll forget its there."
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"The reason for four stars of the the little plastic window for the lights is a little to easy to get scratched."
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"It's a small plastic piece, would be easy to lose or break - they couldn't provide one for each bracelet?"
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"I would give 5 stars except for two issues:--The band has a very poor design and easily breaks where the hard plastic light meets the soft plastic band."
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"The all break where the clear hard plastic piece connects to the smaller part of the band."
_

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Quality

Quality:
"My problem with fitbit is the quality and band design."
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"It also measures sleep quality, but I think it is not accurate, so I don't wear it when I sleep."
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"I love a lot of the features to this watch but it has some disappointing qualities too."
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"Luckily I found it but not very pleased with the quality of the product."
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"Horrible quality and no support through company."
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"Operates fine but very disappointed in quality of strap."
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"Good quality"
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"Great quality! "
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"It's really nice that its water resistant and the quality of the product is good."
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"To summarise, it's a good item for beginners but the product quality is lower than I would expect for that price."
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"I'm very pleased with the quality and function of my Fitbit Flex."
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Reliability

Reliability:
"I have been very disappointed with the reliability of my fitbit."
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"Fitbit should be ashamed of themselves for such weak reliability."
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"They clearly have some kinks to work out with battery performance and accuracy, and $100 is too much to spend on a product that has so many known reliability problems."
_
"Please know that this is NOT all-inclusive and simply highlights some of the features & functions I found notable:Fitbit1st option: Flex2nd option: Force+ overall, most cost-effective trackers+ both options are multi-platform (can view data on PC + smartphone)+ both have a display to show fitness goal progress without having to check PC or phone; the Force has an advanced display that rotates through time & showing multiple fitness goals' progress- No battery icon; have to check PC or phone to see remaining- Flex multi-tap can be difficult to use; it takes the right rhythm of tapping to put tracker into sleep mode- Force not completely waterproof- I have no problems with the clasp on the band but know others find it difficult to closeJawbone1st option: Up2nd option: Up24+ award-winning fashion-forward design+ the smartphone app is gorgeous - vibrant and crisp+ smart alarms to wake you when the tracker determines you're at your lightest sleep+ if you forget to put into sleep mode, will auto-estimate sleep times based on your activity vs. having to log manually+ idle alert if you are inactive for too long- reliability - there are significantly more complaints about Jawbone products breaking down than others- no display; must check phone to see fitness progress- smartphone only; no PC support- Up has manual sync; must physically plug into phone to sync data whereas all others use BluetoothNike1st option: FuelBand2nd option: FuelBand SE+ brand - Nike is well-known with a reliable reputation in the sports world+ multi-platform (can view data on PC + smartphone)+ advanced display to show time, fitness goals' progress, and flashing light patterns+ completely one piece so no extra parts to lose- most expensive- points system to show fitness progress vs. actual stats (I personally found their FuelPoints system confusing)- activity tracking through sessions (again, confusing)- no alarmsEveryone weighs the various features & functions differently."
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"One extra step- a little annoying, but not a showstopperUnknown:- reliability."
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"A couple of things that were a deal breaker for me were comfort and reliability."
_
"All 5 have had issues with durability and reliability."
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"Excellent customer service however this item has reliability issues."
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"Size, weight and reliability are terrific."
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"Good product but the reliability is awful."
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Sensor

Sensor:
"But, I'm still under-whelmed and mostly disappointed I spent 100$ for this glorified motion sensor."
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"Sleep sensor is not that accurate"
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"I like the Flex because you can wear it in the shower (unlike the Force), but the annoying thing is that you have to pop the sensor out to dry it off and dry out the inside of the band, otherwise it'll stink."
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"I believe the problem is the sensors corroded after contact with moister."
_
"Thus, what was really damaged was the charger not the sensor."
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"The sensors are not nearly as accurate as on the other devices."
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"I wish I would have bought one with a heart beat sensor but other than that, I love it."
_
"It has a sleep sensor, this is somewhat accurate and somewhat not."
_
"Also, as others have pointed out, since it doesn't have the other plane sensor (an altimeter I believe, but don't hate if that's incorrect) it has absolutely no idea when you are going up and down stairs, and I've found that despite going up 3-5 flights of stairs it only tracks, if I am lucky, the steps I have taken on each landing..."
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"This could easily take 4-5 minutes every time the sensor had to be charged."
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"The sensor works great and is fairly accurate with things like elliptical trainer (my primary source of cardio) and walking."
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Sleep

Sleep:
"Because of the previous challenges I mostly use it for counting steps and sleep."
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"The sleep function is not accurate."
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"I purchased one for my wife, she experienced problems with the sleep function not working properly within the first month or so."
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"Learned I do not sleep as well as I thought I did and walking more"
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"Too often the device would not sync and so I couldn't get a read of steps--the sleep feature seemed way off, and was hard to program."
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"I wanted to know what my sleep habits were, and this has given me a snapshot of how HORRIBLE I sleep!"
_
"Very easy to track foods, water, sleep, steps, other activities for motivation and reinforcement of good habits."
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"Also love the sleep tracker"
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"I love the sleep part, as well as counting steps."
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"The sleep monitor is a nice feature and the slate color is really nice looking."
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"Love the sleep app."
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Sleeping

Sleeping:
"This product has shown me that I'm not sleeping as well as I thought I was."
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"Everything was exactly as I hoped it would be: I found the tracking of my steps accurate, sleep tracking extremely helpful (I'm terrible at sleeping), and the design of the tracker in the wristband comfortable."
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"Not sure what benefit tracking the sleeping is and not sure how accurate it is."
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"The additional sleep tracker is even better, you can find out the times of night you really are not sleeping well or when you were really restless."
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"I felt I wasn't sleeping well and was concerned, but I was being ignored and even chastised for sleeping in extra long on weekends."
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"Easy to recharge (best while sleeping so you don't miss counting any steps)."
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"I do have to say the silent sleeper and sleeping activity is great."
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"I didn't realize how terrible a sleeping pattern I had until I was able to track it with the fit bit! "
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"Also, the sleeping function didn't work for me at all; it was unable to track my sleeping hours and patterns."
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Strap

Strap:
"Would have given it five stars but the clasp to connect the strap is hard to fasten and comes apart if not checked."
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"The strap on my wife's broke today."
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"also, the wrist strap broke where you have the little window after about 8-9months, good thing they come with two straps, but still, it can drive you nuts trying to charge it."
_
"But then the battery stopped charging and the strap broke - both too late for a refund from Amazon."
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"Only complaint I have is snapping on the strap."
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"The strap is a bit of a disappointment."
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"Fun to be sure that u get your 10,000 straps in daily."
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"also, the wrist strap broke where you have the little window after about 8-9months, good thing they come with two straps, but still, it can drive you nuts trying to charge it."
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"The good news is that the wrist strap is comfortable, is unlikely to cause irritation, and fixes securely to your wrist with two plastic pins you should find the Flex very comfortable and secure most of the time, youll forget its there."
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"Very good device overall, but the strap wears out easily."
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Support

Support:
"I emailed tech support with my problem and the response was the the MS Surface Pro 2 tablet was not a PHONE platform they support."
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"Found the same problem reported in an online FitBit support group."
_
"Horrible quality and no support through company."
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"I've notified support and hopefully they can help but it's really unacceptable for a product to only last 2 months."
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"Their support team replaced it free because they said there was an error."
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"I agree that their support is not good, I managed to get in on a chat session once and that was the best training and support that it gave."
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"Customer support was really good."
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"Honestly, the best part about this product is the support."
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"I will always support and recommend Fitbit products to my active friends (and of course friends that are looking to become more active! )"
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"I was told this by FitBit support and they recommended that I buy one of the phones devices on their compatible devices list."
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"easy to purchase but no support from company."
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Swimming

Swimming:
"I also made the mistake of ordering a cheap replacement band that was made in China and it wasn't well made, fell off my wrist while I was out and about at the swimming pool, and I never found the tracker again."
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"I won't use it while swimming because the bands tend not to do too well after constant exposure to water."
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"The only issue I have had is the closing clip is hard to get in and out of, and when I have been swimming, it has come undone."
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"But it doesn't track biking or rollerblading (not to mention swimming), so not great for tracking summer activities."
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"The fitbit works well, wish it was more useful for activities other than walking outside the log function (yoga swimming) and the orange color got dirty looking really fast."
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"Some complain that water collects there after they shower or go swimming."
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"Wish I could track swimming and other things but this is great - and maybe - if I keep it up, I will even upgrade to one with a heart monitor."
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"I went swimming with it (just for fun)."
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"Took it swimming, like you're supposed to be able to, and it stopped working."
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"Very good for swimming."
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"Also, I have taken a bath, gone swimming and it has been dunked in dish water and works perfectly fine!"
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Sync

Sync:
"Initially, it made it seem like I had to charge it every two days, but once I realized how often the battery sync was wrong, and just trusted in the battery, I've been comfortably wearing it all week before charging over a Saturday or Sunday night."
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"When I voiced my concern a second device was sent me and it is even less capable than the first, it is completely unable to sync or measure steps or execute any other features."
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"The only thing that may not be good for some is this style has to be synced."
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"Not able to sync it at all."
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"Pros:Comfortable; easy setup; easy to use; many alternate wristbands available; syncs with MyFitnessPal food app; can challenge friends; incremental step, distance and weight loss badges to keep you motivated; great battery life, quick recharge, tracks sleepCons:I've heard the wristband can come undone, but I use a little fastener ring over the clasp."
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"today this FitBit failed to sync."
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"If I didn't care about that aspect, I probably would have gone with a Nobu X by Razer (which, admittedly, seems to have shamelessly copied Fitbit's software wholesale), as it makes far better use of the notification potential some led lights and vibration can bring on one's wrist (at about 2 3rd the price).Fitbit's software is definitely good, though it doesn't appear to sync the battery charge correctly about 30-40% of the time."
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"Initially, it made it seem like I had to charge it every two days, but once I realized how often the battery sync was wrong, and just trusted in the battery, I've been comfortably wearing it all week before charging over a Saturday or Sunday night."
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"It also took awhile to sync the steps and distance, there was a great deal of trial end error."
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"Nice but sometimes it won't sync...."
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"Easy to synch with iPhone which then keeps track of activity and day's progress when you forget or choose not to wear your FitBit."
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Track

Track:
"I love that I can use the app for additional features such as challenging my friends to a step challenge, track my diet, water intake, calories burned and weight."
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"sadly my girlfriend is not happy with this as it seems not to track all the movement etc.."
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"This is beyond inconvenient and I cannot track my exercise consistently."
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"Not only am I now able to track my fitness, I'm so much more motivated!"
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"Sometimes, since I'm a very dedicated runner, I get super upset when it won't track my steps or mileage."
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"Not as accurate as it claims to be but can be used to track progress very well."
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"Although, it did track my steps well and I love the app for Fitbit which is why I decided to upgrade to the charge instead of looking into another brand."
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"Very easy to track foods, water, sleep, steps, other activities for motivation and reinforcement of good habits."
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"I recommend this if your are interested in keeping track of your daily activities."
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"best and most accurate way to track my activity!"
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"Wish I could track swimming and other things but this is great - and maybe - if I keep it up, I will even upgrade to one with a heart monitor."
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Tracking

Tracking:
"Step tracker did the same, only the data was incorrect: steps, distance, and active times way off."
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"The most annoying is not tracking stairs."
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"its functionality works as a step tracker, but the charger is one of the worst engineering products I have ever seen."
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"I am so disappointed, because when this product is working, it is the best fitness tracker I have owned."
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"The device was very ineffective for tracking."
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"My biggest love and hate for this is the sleep tracker."
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"Also love the sleep tracker"
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"loving it, was delivered super fast, it's nice tracking my steps and my sleep, love the silent alarm, the fitbit motivates me"
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"I starting using the food & exercise tracking--I love that it adjusts how many calories you need based on your energy output levels."
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"The fitbit flex is a great activity tracker."
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"Great for tracking my daily sleep and activity patterns."
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Treadmill

Treadmill:
"I love my Fitbit and the only problem with it is that I hold on when walking a treadmill, and the steps are not counted."
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"I compared it to 2 pedometers and my treadmill which all came out within 10 steps of each other - the fitbit is junk!"
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"but does measure steps well but does not measure very well when you are jogging on a treadmill."
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"When you hold onto the handles of the treadmill, the step count may not be accurate without the combination of arm and leg movement."
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"Not good for counting steps on a treadmill but fairly accurate with anything else."
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"My only complaint is it isn't very accurate when I walk on the treadmill of I keep is on my wrist."
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"I love my Fitbit and the only problem with it is that I hold on when walking a treadmill, and the steps are not counted."
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"I have tested its accuracy against my treadmill (which counts steps in addition to miles) and against my Garmin GPS running watch."
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"I was not sure the tracking of steps was accurate because the miles the gym's treadmill said was not the same as what the fitbit recorded."
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"My iPhone tracker and my treadmill correlated well, but this was always off about 30%."
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"The Flex is perfect for tracking Treadmill and road runs."
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USB

USB:
"Only thing is I thought I had misplaced my USB charger, ordered another, found my original then tries to cancel my order from fitbit, yet they sent it and charged me anyhow."
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"Let's start:-won't sync to either of our phones (both are relatively new but Bluetooth version is incompatible)-won't reliably sync to USB dongle-wristband snapped at the transparent joint after ONE DAY OF USE-during USB dongle syncing, the provided software routinely says this is a new device and tries to make us re-setup the device and Crete a new accountThis product is comprised of three basic parts: 1) the device, 2) the dongle; 3) the wristband."
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"Something seems to be wrong with the USB charger or the Fitbit connections itself."
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"Unfortunately after about 6 weeks it wouldn't connect properly to the usb charger anymore and became useless."
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"Charger: The USB charger is frustrating at best, sometimes it charges, sometimes it doesn't."
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"If the charger had indeed fried my usb port, fitbit and I would be having a much bigger problem right now!"
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"It syncs with a small USB dongle (not to be confused with the charging dongle).In summary, I'm very pleased with the Flex."
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"I also love the usb charger, makes plugging it in while I am working my computer easy to maintain battery life."
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"I love that only have to be 20 feet within the USB doggle to sync it."
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"After downloading the software from the website and inserting the dongle into a USB port on my laptop I was able to sync my tracker after two tries."
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"You need to remove the little device from the band, attach it to the charging cord, attach that to a USB port or device, and then hope that the connection is good enough to actually charge it."
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Wake

Wake:
"Which isn't good when you wake up for work at 3:30 am and depend on the fitbit's silent alarm."
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"The only problem is when I try to put it to sleep or wake it up...I haven't gotten the tap pattern down."
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"Really frustrating when I wake up and realize it hasn't charged all night and it's not tracking my steps."
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"Sleep tracking is nice, or scary, to see how many times I wake up during the night."
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"I fully charged it yesterday.... wake up and bam... battery completely dead."
_
"Because in all likelihood, your Fitbit will have a dead battery by the time you have to wake up."
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"And I don't have set my annoying alarm anymore the soft vibrations ( although it scared me at first ) is great and doesn't wake my boyfriend up wich is always a plus ."
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"The silent alarm works great and is the best solution I can think of for an alarm that won't wake your spouse."
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"It also gives me a fairly accurate feedback to how well I slept the night before and when I need to wake up before my wife and don't want to wake her I use the silent alarm feature."
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"A friend lent me a Flex they were not using to get a feel for it...I am shocked anyone buys this product for $100...I have had it for a week now.1) The clasp is more appropriate for a $5.00 item or something from a Cracker Jacks box...I have had the Flex fall off several times already and am now nervous to wear it...2) It just counts steps...other activities do not count...sorry Fitbit I do more than just walk...bicycling, kayaking, etc...very limited...3) Very hard to figure out ... how about a better how to use section on your website...maybe its there but I could not find it...My guess is this is another...Wall Street IPO that insiders and brokers made a killing on...but a decent product it is not...Wake up America demand more for $100....Very, very shock they are in business."
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"It is easy to turn off when you wake up."
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Warranty

Warranty:
"I am so disappointed, as it is no longer under warranty."
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"replacement sendabout a year later,as soon as warranty runs out, it stop vibrating, i missed the alarm setting."
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"Only 30 day warranty so I wouldn't recommend buying."
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"I got a replacement under warranty and was able to replace my old, damaged device."
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"Technology isn't perfect which is why their are good warranties for companies who back their products and Fit-Bit is one of them! "
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"They do have an excellent warranty replacement system, but since my device failed the third time out of the 1 year warranty, I am at a loss."
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"Worked great, wore it daily, but died just after the 1 year warranty expired."
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"This happened to my brother's as well - it's a pattern and conveniently outside the 1 yr warranty period."
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"I really feel like Fitbit's support team is trying to discourage customers from taking advantage of their warranty."
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"I got a replacement under warranty and was able to replace my old, damaged device."
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"They do have an excellent warranty replacement system, but since my device failed the third time out of the 1 year warranty, I am at a loss."
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Waterproof

Waterproof:
"I love my fitbit but was a little disappointed after I received it to find a waterproof model so I called customer service and they told me all fitbit flex's are waterproof."
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"I decided that I would attempt to wear it in the shower since it is supposed to be waterproof."
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"My suspicion is that these devices are not as waterproof as they claim to be as it broke right after I washed my dog in the sink."
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"Soooooo now I have this item, 6 weeks in, supposedly waterproof and now it's dead."
_
"Pros-Great battery life, gets me through my work week without needing a recharge-Bluetooth syncing to phone and internet makes mobile device more powerful-Gets me motivated to out step my friendsCons-Not fully waterproof, might not stand up well under prolonged water exposure-A bit pricey."
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"Its larger, not as easy to charge up and is not waterproof."
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"Is actually waterproof I got it but upgraded to th he charge it's a amazing price on here though"
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"Love that Fitbit is waterproof."
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"I was very suprised and happy to learn that the flex was waterproof."
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"great device, but it would be nice if it was waterproof"
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"Works great .wished it was completely waterproof"
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Wearable

Wearable:
"The problem with wearable technology as a whole is its limited in what it can do which mostly makes it a waste of money till people figure out how to make it really work together with the other tech around you."
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"The technology is young and I can't wait for more features to come out for wearables, but I'm pretty happy overall with my Fitbit Flex."
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"The Fitbit app and website interface are easy to use and sync with the wearable technology."
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"Since it's a wearable, tracker etc should have some feature that makes it easy to find after we drop it or lose it by accident."
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"I like the device and as a wearable monitor, it is pretty darned nifty."
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"If you need a lasting wearable, stay clear from the Flex."
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Wearing

Wearing:
"After my second one I had to stop wearing it because I broke out with a rash on my wrist under the wrist band."
_
"Initially, it made it seem like I had to charge it every two days, but once I realized how often the battery sync was wrong, and just trusted in the battery, I've been comfortably wearing it all week before charging over a Saturday or Sunday night."
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"Love it but no time...feels weird wearing it with a watch."
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"The problem however is the band, I lost it after wearing it for 2.5 months."
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"It got dirty within 12 hours of wearing it, and it really cant be cleaned."
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"I made the mistake of wearing it into the ocean and had to dry it out before using it again...."
_
"Initially, it made it seem like I had to charge it every two days, but once I realized how often the battery sync was wrong, and just trusted in the battery, I've been comfortably wearing it all week before charging over a Saturday or Sunday night."
_
"Love it but no time...feels weird wearing it with a watch."
_
"The Fitbit is comfortable to wear and I forget I'm wearing it most of the time."
_
"Looks and feels good when wearing."
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"Wearing it everyday, it has been good."
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Weight

Weight:
"Pros:Comfortable; easy setup; easy to use; many alternate wristbands available; syncs with MyFitnessPal food app; can challenge friends; incremental step, distance and weight loss badges to keep you motivated; great battery life, quick recharge, tracks sleepCons:I've heard the wristband can come undone, but I use a little fastener ring over the clasp."
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"It was very challenging trying to get her to realize that the weight she was gaining was not contributed by the pregnancy."
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"It has helped aid in weight loss challenging my daily steps."
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"Another big plus: One thing that makes it very hard to stay on a weight loss or fitness program is that the goals are long-term."
_
"I have tried many exercise and weight loss routines, but was never able to stay motivated."
_
"It did motivate me to move more while it lasted but even with careful monitoring of calorie intake I found my weight loss unpredictable."
_
"Light weight easily works into my varied wardrobe with choice of colored bands."
_
"The good thing about this Fitbit is that it is small and light weight."
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"Using my Fitbit with the compatible MyFitnessPal app has led to an average weight loss of a lb."
_
"Came quickly and love how it works and syncs with the fitbit app and weight watchers app on my phone."
_
"Very comfortable on the wrist due to light weight."
_

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