Customer Ratings & Reviews

After wearing this for 4 days the battery was telling me that is was dying. I charged the battery but when I plugged it in, it was telling me that I had 3 out of 4 bars for a charge. 2 hours later it was telling me my battery was dead again after i let it get a full charge. Wearing it to the gym 3 times I was active all 3 times but the tracker only showed I was active for 1 out of the 3. I was showing it to some coworkers to show how it works on my phone and the active tracter was only showing 4 min's out of the 30 for the day. I put it in my hand and shook it for about 10 seconds then my phone was saying I was active for 72 min's for the day. Not accurate what so ever.

Had the Fitbit Force for 3 months before it fell off my wrist unknowingly. Clasp is not reliable and you will eventually lose it. Save your money.

Purchased the fitbit flex and fitbit HR 13 months ago. Almost 13 months to the day, the flex dongle stopped holding a charge. The HR is only charging to 50%. When I contacted fitbit they stated that they are only responsible for replacement or repairs up to 1 year - after that time - we would need to buy a new product. That they had no solutions for a faulty battery. Seriously? To me that clearly demonstrates shoddy manufacturing and that their "business strategy" is based on customers purchasing a new product on a yearly basis. Really? Again, Apple, Garmin and Samsung are dominating this market - and all have business strategies for products lasting much longer than a year. So we will be replacing our 1 year fitbits with superior products.

Make sure and check to see if you phone is on the list of approved devices. I switched to the Samsung Note 3 and it will not sync. Fitbit has no fix in the works according to the email I received from them, so the Flex is worthless because I am not available to sync it to my computer every day.

I managed to get a good year out of my flex but it completely died at 1.5 years. I called Fitbit support and asked for help but they did nothing for me except offer me 25% off my next purchase...only covered for 1 year. Considering the cost I expected more.

I just got my long awaited Flex and was so excited to try it out. So far it is really cool, but there is one MAJOR issue that will cause me to return it and buy a Jawbone Up, the tracking of steps is WAY off. I did a 3 mile circuit, with my arms moving the enitre time, and it only recorded it as 2 miles! I did this 2 times to make sure. For a tracking device, I would expect it to be a lot more accurate or at least be able to calibrate it like the Jawbone UP can do. I can also set the UP band to be in exercise mode, which tracks my exercise as an event. Fix the tracking and enable calibration. Lastly, the UP band, when put in sleep mode, shows light and deep sleep as well as how long it takes to go to sleep. I am really dissapointed after waiting this long for the Flex.

I bought this Fitbix Flex yesterday, and am rather disappointed. I bought this item to help me with the motivation to be more active, but when I got home from work and tried setting it up on my PC, the software I downloaded from the site doesn't even work! The program itself loads, but it will not let me click on the "Add A New Device". When I click on it, it does absolutely nothing! This is rather frustrating since I have spent all this time FORCING it to work, and FitBit Customer Support is telling me to do the things I have already done which consisted of uninstalling and installing over and over again, making sure I have all OS updates, etc. If I do not get a more helpful response from FitBit withing the next two days, I will be returning this product.

I thought that product was so much better if it really is.

I bought this fitbit today I tried to set it up on my MAC laptop I got an unexpected error occurred message. I tried several to set it up uninstall/reinstall software. I am a computer guy so I know what I am doing. I google the problem and sure enough on fit bit's own help forum scores of people have experienced this. Fitbit has know of the problem for what looks like months and not fixed it. I have no patients for companies who do business like that. I buy something and expect it to work. When the company knows and continues to sell unwitting consumers a product they will waste hours on trying to get it to work is inexcusable. I am taking this back for a refund tomorrow. Do not buy anything from this company.

I got this for my wife. It was tight for her to wear and after awhile she felt like she was a prisoner to the unit. You have a download before midnight each day or else. Not easy to changes modes by simply tapping. Returned product when it stopped working properly.

The band is very hard to snap on, especially if you have any dexterity issues. My wife has a Fitbit One and loves it. I’m returning the Flex and getting the One.

Their service is awful and their product is faulty. First i had trouble syncing my tracker then after only two weeks of having it, the stupid thing fell off my wrist without me knowing so now I'm out $100 and I can't explain how upset I am that their "warranty" doesn't cover lost or stolen items. The wrist clasp is faulty!! I've searched online and there are plenty of people who have had the same thing happen to them but they got their product replaced. I emailed customer service and all I get is a No Sorry?! This is ridiculous

I was so excited to finally get my new Fitbit Flex. I set it up and charged the device and proudly wore it the next morning. First thing I noticed it was terribly inaccurate with step counting. Somehow it logged a few hundred steps when I was driving. Second I noticed when I was walking while pushing my daughters stroller it wasn't logging anything. Also the calorie calculation is way off. It said I burned about 158 calories the first 5 minutes I was wearing it. It's basically a laughable device that is beyond useless. It's supposed to track data that pushes you towards a specific fitness goal yet all the data is inaccurate. So why bother? Already returned mine.

Bought it for Mother in Law as Christmas present. States will work with Android and IPhones. Couldn't get it to work with any Android devices and you have to have a 4S or newer IPhone in order for it to work. Hers is a IPhone 4.

Fitbit makes a low quality product that breaks within a few months of normal use. I have had two Fitbit Flex and they have both broken. My original Flex wouldn't accept a charge and would not work at all. My second Flex, the one they replaced the broken one with, will not accept a charge and will not work at all. Not only is this product substandard, they also have terrible customer service. I have made numerous requests, through their system and no one will get back with me. I'm going to start using a different product, one that works. This is a terrible company.

After walking 4000 steps, the Flex recorded 2800. After walking 5500 steps, the Flex recorded 2500. After walking nearly 3 miles, the Flex recorded 1.13 miles. This was over a 4 day period, after having set my stride length and all of my personal information. (Height, weight, gender). I only used the sleep tracking feature one night. It showed that it took me 9 min to fall asleep, which is nowhere near accurate, and underestimated the number of times I awoke.

The Flex joins previous wrist trackers (Jawbone, Nike) that all fail in accuracy. I was hoping the Flex might have learned from its predecessors and would be better. Nope -- total fail! The Flex adds steps every time you move your arm, even when you're standing still. I wore the Flex along with another pedometer for awhile and saw that the Flex was counting double the number of steps. I had 100+ steps when I woke up in the morning and I hadn't even gotten out of bed. It's just not accurate, so I'm sticking with the One.

I finally got a Flex and was excited to use it. I have had problems syncing it with my computer and attempted to contact Customer Support after trying online help system. I then received an email stating it might be up to 2 business days to respond to my problem. I find this totally unacceptable and will probably return item if I don't hear from them in 24 hours. They announced this product in January and I have been waiting for the release so I am very frustrated to finally get it and it is unusable.

I bought the flex as a Christmas gift. It worked for a week when the company decided to create the ability to sync with phones. In doing so, my flex stopped syncing entirely, battery started draining in a few minutes. Horrible. I emailed fitbit and was told to reset it then sync as a new device. STILL did not work. Fitbit was emailed again and they did not contact me back. Lost my business and I intend I going back to the store and getting something different and better with my gift card.

I just purchased the Fitbit Flex today. After installing the software on my desktop, I walked to the kitchen and back in my rather small house. How amazed I was to discover that the round trip distance is 519 steps! I then sat in my recliner to eat lunch - another 228 steps. Wow! I can get fit and lose weight by simply eating and reclining! Useless junk. I will return immediately.