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Customer reviews

Rating 4.4 out of 5 stars with 10455 reviews

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92%
would recommend
to a friend

Customers are saying

Customers are satisfied with the Flex Wireless Activity Tracker's sleep tracking, ease of use, and accurate step tracking capabilities. Many appreciate the long battery life, comfortable size and weight, and the motivational aspects of the device. While some users mentioned challenges with the charging mechanism, clasp, and price point, the positive feedback on core features outweighs these concerns. The water resistance and alarm features also received positive comments.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 509 Showing 10,161-10,180 of 10,455 reviews
  • Rated 4 out of 5 stars

    It does what it says it does.

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I enjoy the FitBit flex, but it isn't practical to wear it every single day unless you get multiple colors of the bands. It's easier to hide it when you're wearing long sleeves. If you don't have an iPhone, it would be hard to consistently track your data without the FitBit app. Of course you can check your stats on the computer, but it takes more time!

    I would recommend this to a friend
  • Pros mentioned:
    Accuracy

    Rated 5 out of 5 stars

    Love my FItBit

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Love this product!! I wear it all day every day and it never misses a beat! Perfect for any level of working out

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Great Fitness and Goal Tracker

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Coupled with the smartphone app it provides key metrics to help you understand how you are doing and what you should change. If you are willing to track your eating, water consumption, weight (or buy their scale and let it sync with the app) it will give you great feedback on what you need to watch. The food database is pretty good, and adding new food is easy. The step counter is pretty accurate but can be fooled. The water intake tracker is one of the easiest to use. The built in alarm is nice, but dont get carried away, it can lower battery life if you have more than a couple of alarms set a day. The sleep tracker is downright creepy, but useful. It provides some real insight into your sleep patterns that can be quite enlightening. The best part is the goal setting. . A simple double tap on the display give you a little light bar indication of how close you are to your goal. Once you hit a goal it lights up and blink. An cyber good job message. It is a step above a pedometer but not quite a smart watch. So if that is the space you are in, get this product.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life, Ease of use

    Rated 5 out of 5 stars

    Great Product

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Overall product is great, counting the calories is awesome plus I've lose 5.8 LBS in 5 days just by counting the calories, drinking more water. battery life is pretty good and even when I can shower with it I prefer to take it off. App is great but web page is way better. I will totally recommend the product.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Great

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I love my Fitbit Flex its great motivation for someone like me who always lazy when it's come to sport.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Great tracker for a beginner

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I bought 2 of these one for me and one for my guy. I love my tracker... It was just what i needed. I like that we can compete and motivate each other... I am a beginner with fitness, i get bored easily and my fitbit tracker keeps me motivated... Ive had it for an entire week now and im glad i bought it!

    I would recommend this to a friend
  • Pros mentioned:
    Sleep tracking

    Rated 4 out of 5 stars

    Fitbit keeps us fit!

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I purchased 2 fitbits, one for me and one for my husband. So far, they've been great. We also have the app on our phones so we can keep track of each other. It motivates us to walk/move more, take the stairs, and park far away. I love the sleep tracking feature! One night, I apparently was sleep walking and because of the fitbit, was able to pinpoint exactly when it happened. The only complaint I have is the short battery life. I have to charge ours after about 4-5 days of use. Of course, while it's charging, it's not tracking either, so you'll have to pick a time when you're planning to just sit (but not sleep, if you like the sleep tracker!). Overall, a great purchase. I would love if fitbit would make more fashionable wristbands for the fashionistas!

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Perfect

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I purchased this for my wife, it is just what she was looking for. Works great, so far no issues.

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    Easy to use, comfortable, but poor reliability

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Fitbit Flex is my first wristband, I have to say it is cheap, and easy to use, you can wear it for whole day whiteout actually feel it, and it help tracking my sleep quality. It is waterproof so that I can wear it when swimming. But it also have some problems. The tiny gap in the wristband actually can store water and sweat in it, so if you don't clean it very often, whole thing can smell really bad. Also, the tracker is beautifully made, but for the wristband, not so. I often take the tracker out to clean the wristband, and I recently find out the rubber on wristband is broken because I often take the tracker out.

    I would recommend this to a friend
  • Cons mentioned:
    Charging

    Rated 3 out of 5 stars

    Fitbit Flex Slate

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I used fitbit flex slate for a week. It is light weight but flimsy. Only LED indicator are there and always rely on mobile app or dongle on computer. Sync is manual. Fitbit app is very good compared to Garmin's. Charging requires docking to the USB on a computer.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Sleep tracking

    Rated 5 out of 5 stars

    It is really good!

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It works well and records my sleeping well. Also, it looks beautiful to match my clothes.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Awesome Fitbit

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It is easy to use and happy that they have different wrist sizes, since mine are tiny.

    I would recommend this to a friend
  • Pros mentioned:
    Accuracy

    Rated 5 out of 5 stars

    Great activity tracker.

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It is very practical and accurate. It helps to monitor your daily activities and sleep.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Like it so far

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works great! It's super light and holds a charge for a couple of days which is nice.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    great fitness tool

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Easy to set up and use, syncs easily with Android phone, and the apps make it fun.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Fun gadget but not accurate

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It's a fun gadget but not really accurate. I happened to have my IPad up with the FitBit dashboard open and I noticed it logging steps when I was only standing there folding towels. It's fun and if you're dedicated it might keep you mindful, but it won't turn out to be as useful as you will have hoped.

    No, I would not recommend this to a friend
  • Rated 5 out of 5 stars

    Great way to stay in shape

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Very convenient way to stay in shape and keep track of your sleeping patterns.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Fantastic

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It's slim and fits very well. The information is useful and easy to decimate.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Love it!

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I've been wearing the FitBit Flex for about 3 weeks now and I love it! I was doing a comparison between this one and the Jawbone Up. I ultimately decided to go with the Flex because: 1# wireless sync 2# confidence that it wouldn't fall off during the day or in my sleep & 3) tap on the band to see your daily progress. I do think that the Up has a more robust interface #like when tracking sleep the Up tracks deep sleep #REM) vs. light sleep. The Flex tracks Asleep, Restless and Awake. It is fine though and so interesting to view. A big complaint I heard about the flex was getting it off and on. The first 2-3 times it was difficult but now it snaps right into place with ease. The black band does get a little scuffed up and I can't wait to get the accessory bands! They are on backorder for a while. I am also tracking my calories/food through My Fitness Pal and it syncs nicely. I love it!

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Would buy again

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Fits great, easy to use and very helpful. I would recommend this to a friend.

    I would recommend this to a friend