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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 507 Showing 10,121-10,140 of 10,455 reviews
  • Pros mentioned:
    Sleep tracking

    Rated 5 out of 5 stars

    Fitbit - Flex Wireless Activity and Sleep Tracker

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

    Excellent product! My tracker performs exactly the way it's designed to. The entire family has one and we all track our progress. This product makes you want to do better, as well as makes you conscience of your intake.

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

    Rated 4 out of 5 stars

    Great for tracking steps and sleep

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

    If you are looking for it to do more than just track your steps and sleeping this one is not the one for you. However I love it for tracking my steps. Although it is a bit bulky and I wish it was thinner.

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

    Rated 4 out of 5 stars

    Making me mindful

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

    I bought this when I decided to work on getting back in shape. Easy to set up. Not as accurate as I would like, but it is doing what I wanted it to do - it motivates me. I find myself planning out walks so I will hit my goal. I love plotting my weight loss, and seeing how I slept the past night. For $100 bucks I can't be happier. Had it almost 2 months now and have increased my walking fourfold and have lost 9 pounds. I also learned I need to get to bed earlier to get the shuteye I want.

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

    Rated 5 out of 5 stars

    Awesome!

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

    I have to admit it was a little skeptical to get this one. In a time where there's so many different trackers, it was't easy. But I'm glad I chose this one. It's practical. My mom absolutely loves it. She's obsessed with the app and there's been no regret.

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

    Rated 5 out of 5 stars

    better than expected

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

    Did a lot of research prior to buying, couldn't wait for Fitbit Force so went with Flex. once you work out the anomalies of the lights and how to put in sleep mode, this is great. Started with 'sensitive' mode for sleep but I'm a restless sleeper so that showed I was awake almost all night, switched to 'normal', the accuracy went to 98%! My wife and I have gotten in a competition over how many steps for the day, she says I have advantage because Italian heritage means arms add additional steps, I think she is just sedentary (Fitbit told her same thing!). This gets more addictive by the day, buy it!!

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

    Rated 5 out of 5 stars

    Wife loves it

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

    My wife wanted one of these and thankfully Best Buy had it on sale. Integrates with Health app on iPhone and even tracks sleeping patterns which is really cool. There are lots of different bands available for them too which my wife has fun with

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

    Rated 4 out of 5 stars

    Great activity tracker

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

    The Fitbit Flex is easy to use with great features. I think it over estimates calorie burn, but I use it in combination with the Lose it app, so I feel that I get a better estimate.

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

    Rated 4 out of 5 stars

    So Far so Good

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

    So far the fitbit flex has been easy to use. The one issue I have is that there are no instructions on how to track your sleep. You have to put the fitbit to sleep for it to track.

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

    Rated 4 out of 5 stars

    Easy to set up

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

    So far the fitbit flex has been easy to use. The one issue I have is that there are no instructions on how to track your sleep. You have to put the fitbit to sleep for it to track.

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

    Rated 4 out of 5 stars

    Great product, just falls off from time to time

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

    I love my fitbit and have lost 23 pounds since Nov 13. It is a great motivation to get off the couch. The 24 hr wear ability makes it hard to resist due to I dont have to find a special place for it in my house. I can honestly say that with this product I went from little to know activity, graduated to mall walking, then walmart walking during the winter and now 5 miles a day... I still break for weekends to enjoy a beer however the results are obvious. Everything about my health is better. It is worth your 99 dollar investment to you! One peice of advise would be to buy the extra clasp that will protect it from day to day issues that will knock it off, putting babies in car seats, wearing a back pack....etc. the hardest pill to swallow is losing one of these a month after you finally convince yourself to get healthy. The protection for it is called a bitbelt. I included it as my user name to give you an idea where to find it. Worth every penny, and its very cheap considering

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

    Rated 4 out of 5 stars

    Excellent Product

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

    The Flex is a great product but I wish it had a digital display like the Charge, I ended up giving the flex to my boyfriend and getting the Charge for myself.

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

    Rated 5 out of 5 stars

    A Perfect Fit for the Health Enthusiast

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

    I received this as a Christmas Gift and thought that it would be a complete waste of time. Boy was I wrong! This little device has become one of my favorite gadgets in my collections. I rarely leave the house without it. At first I did have a little difficulty with syncing it to my phone but that was due to user error. It does a great job of tracking steps, sleep patterns and even allows me to complete step challenges with friends. Its a great device! Highly recommended.

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

    Rated 5 out of 5 stars

    Easy and Fun

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

    I bought this about a month ago to track my daily fitness in an effort to be more active. Before purchasing the Fitbit Flex, I also looked at the Nike Fuelband SE and Jawbone Up. I didn't purchase the Fuelband SE because it was more of a hard bracelet and I didn't want to have that on my wrist all day while wearing professional attire. The Jawbone was another that received consideration, but got bad feedback regarding quality and longevity of the bands. The Fitbit is lightweight, syncs via Bluetooth 4.0 with your iPhone or computer via included dongle, and has a simple dashboard that gives you the data you need (steps, calories burned, sleep, water intake, calorie intake). The bands are interchangeable and you can purchase them in other colors. I would recommend this item.

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

    Rated 5 out of 5 stars

    Does not count all steps on treadmill

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

    The Fitbit flex is good at basic tracking of steps walked and distance. Beware that if you walk on a treadmill and hold on to the rail, it will not count steps accurately. Other than that, it's pretty good.

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

    Fit bit

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

    Worked so well! Love the fit and the comor eas my favorite!

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

    Rated 4 out of 5 stars

    Easy but not a lot of functions

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

    I received it as a gift as a joke. I Gave it to my mom, after I received the APPLE WATCH. My mom LOVES it, to keep track of her steps.

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

    Rated 5 out of 5 stars

    Excellent product.

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

    This fitbit works perfectly for anybody who wants the basics and top quality. Easy set up, easy to manage, easy to charge. Great battery lfie.

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

    Rated 5 out of 5 stars

    Great for Someone Looking for Something Simple

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

    Doesn't have all the bells and whistles but take it out of the package, charge and use. Download the app was easy as well.

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

    Rated 5 out of 5 stars

    Christmas Gift

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

    I bought this for my wife for Christmas and she absolutely loves it. The best part about it is the different bands to go with it, as well as the sleep pattern function.

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

    Way overpriced for quality

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

    I bought this and kept it for 1 day. I didn't like the way it is made and I felt it was made very cheaply. The piece that goes into the band (that gets charged) was so light that I dropped it every time I took it out. It is very lightweight (not in a good way), thin plastic. It feels like a $5 product that would end up breaking in a short amount of time. I also don't like how the band only snaps closed as I feel that I could lose it easily. One good thing about this product is the app. I do like how it syncs automatically. But, I don't like how you have to look at your phone to check the amount of steps you've walked. Also, I'm sure all pedometers are not completely accurate, but with the flex I woke up and went to my kitchen and it said I already walked something like 300 steps! Then as I poured my coffee I was credited with additional steps even though I was standing still. I ended up returning for the Garmin vivofit 2 which does not auto sync, but it does have a screen that you can check without needing your phone. The devise itself is also much more sturdy and seems more durable. Plus it has a locking, rotating clasp so that it won't fall off and it does not need to be charged. Once the battery dies in the garmin, you just replace the cheap batteries whereas with the flex, you will be throwing it away and buying a new one.

    No, I would not recommend this to a friend