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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 515 Showing 10,281-10,300 of 10,455 reviews
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Successful Gift

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

    I was able to get my Mom counting steps with her new fitbit in less than 10 minutes. It is a very simple product to set-up and now she uses it daily.

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

    Rated 5 out of 5 stars

    Great band!

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

    This fit band works great and is easy to use for anybody!!

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    believe the bad reviews

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

    Believe most of the horrible and horrid reviews; SAVE YOUR MONEY; customer support isn't support - known engineering defects are hidden or suppressed and my FitBit was a Flex, a gift which I gave back. I spent hours trying to get it to work after taking it out of the box; it never did work. It could not get it to access the Internet to start a new account and since you can only get data from the device by Bluetooth or the computer\Smartphone, it became useless and a huge waste of money. I tried customer service which wanted me to disable my anti-virus; then, my firewall - both did not work - then, I was escalated to the next level which did not return to follow-up and eventually told me: "The issue you were experiencing regarding the "no internet connection" error message is something our engineering team is aware of and are currently working to resolve." They offered nothing, no solution, no extras for the inconvenience and basically didn't care that I gave it back. The old expression governs: "you're only as good as your weakest link" and I encountered a complete chain of missing and weak links. Save your money or downgrade your expectations - it is an expensive pedometer which may not work and has poor customer service, or no service and poor technical support. -david

    No, I would not recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Good Fitbit

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

    I bought this for my 9yr old for Christmas. She loves it! It works great and is a easy to use. She loves setting goals and accomplishing them.

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

    Awesome! This is how i lost lots of weight

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

    Much needed for those trying to be fit, wanting to keep track of movement/calories, wanting to loose weight. Great tracking tool and a big motivator!

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

    Love this much better than the Aria

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

    I am VERY happy they came out with this! My Aria feel out of my pocket and my dog ate it so when I saw this I HAD to buy it. I love it! I forget it's on my wrist, people think it's a watch so no one asks any questions like a band, or the little device one. I love how when in sleep more it doesn't fall of like the Aria would in that band they would give you. It's also compatable with My Fitness Pal which I LOVE! Overall, worth the money!!!

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

    Has Accuracy Issues But Otherwise Good Product

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

    There is good and not-so-good about the Flex. Overall so far I am happy with the purchase, but I need to do more accuracy testing. GOOD: Once you get it on your wrist (the snaps are difficult) the Flex is very comfortable. Most of the time I don't even know its on my wrist. Charges quickly, links up and syncs easily. Works great with apps both om iphone 5 and the most recent ipad. The dashboard info is not as complete as some sites but it is more than enough for me. I find the sleep function easy to use and helpful. I have sleep apnea and use a CPAP so its nice to see that I am not waking nearly as much as before using the CPAP. NOT-SO-GOOD: Accuracy seems mixed. I have done no calibration or manual entries, but I did compare a long walk with the striiv. They were very close. A big problem for me though is that when I ride my motorcycle it adds steps. Yesterday I rode about 250 miles and it added an extra 6000+ steps. Not good as riding season is here. I suppose I could take it off while riding but because the snaps are such a pain it will be inconvenient. Haven't had the same problem in the car. At this point I am happy with it but I do need to run better accuracy checks and find a resolution for the problem of adding steps while riding the bike.

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

    Rated 5 out of 5 stars

    Get Fit

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

    Its easy to wear and comfortable...also helps me keep track which I don't have to worry much as to remember which does it all for me

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

    Not quite what it seems.....

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

    I bought the Flex in an effort to be better about walking. In most respects it lives up to its' advertised capabilities. There are a couple of areas that are seriously deficient. 1. It advertises that it tracks sleep. It does not! It only detects if you are quiet in bed. Recently I set it for sleep and went to bed at midnight. I finally fell asleep at 3:30. #My problem, not the Flex but it was one of the reasons I bought it.# My log stated that it had taken me 7 1/2 minutes to fall asleep - because I was just quiet in bed. Another night it tracked me as being up 9 times in an 8 1/2 hour period but said I slept 8 hours and a few minutes. Needless to say one doesn't fall asleep instantly the second you lie down after being up. 2. The website is seriously overtaxed. At a minimum I can only log in 1 out of every three or four attemps. It returns a messege stating that they are having problems. Hopefully things will improve.

    No, I would not recommend this to a friend
  • Rated 3 out of 5 stars

    Strap broke

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

    The strap got broken after five-six months of use.

    No, I would not recommend this to a friend
  • Rated 3 out of 5 stars

    Love the Features, but It Won't Hold a Charge

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

    Love the product, but after about 6 weeks, the battery started to drain almost daily. It's supposed to last 4-5 days. Also, when recharging, it often inaccurately flashed 5 lights immediately, as if to say it's fully charged when it's not. Sometimes the full flashing appears after just 30 minutes (it's supposed to take 2-3 hours for a full charge), again, incorrectly telling you that's it's fully charged when it's not. My husband had similar issues with his and had to immediately return it. Be wary of the setup process if you have another FitBit in the house, as it can easily pick up the wrong device (when he activated his, it picked up MY Fitbit, which forced him to restart the process and forced ME to diassociate his device from my account.) The iPhone and iPad software is a bit kludgy as well. Sometimes it just hangs and cannot find your device, meaning you have to close and reoopen the app.

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

    Rated 4 out of 5 stars

    Good product

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

    Good product....works well and easy to use. I would recommend this product

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

    Rated 4 out of 5 stars

    Great

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

    This is a great product. The battery lasts about 4 days between charges

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

    It's ok, doubt if it's accurate.

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

    Been using it for a month now catching some inaccuracy a lot through out the use. Don't feel it helps any.

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

    Very happy

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

    I heard about fitbit from my daughter. Being able to track how active I am has motivated me to be more active.

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

    good concept, but needs work in accuracy

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

    I think Fitbit is on the right track as far as concepts go. Great way to track fitness and easily update your phone with 'so far' data to understand how much more you need to accomplish your daily goals, however, the sensor is too sensitive, even with the bracelet on your non predominate hand, the tracker adds steps with a slight twist of your wrist- so while I’m driving, I could easily add 250 steps while commuting to work.. But I'm driving... while mowing the lawn, the vibration from the mower makes me accomplish my required steps in about an hour of mowing. I am returning the product and going to try out the fitbit one activity tracker - seems to have better reviews so it’s worth a shot!

    No, I would not recommend this to a friend
  • Cons mentioned:
    Charging

    Rated 3 out of 5 stars

    it is ok

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

    overall I like it but I have had to get it replaced 4 times already in six months, it stops charging, wont charge or wont sync. when it works it is great but it is pain to keep having to go back and exchange it. I am a fitness prof and am always trying out new stuff. I like this but only if it works.

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

    Just as good as my Up band

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

    I've owned an Up band and now a Flex. I thought the Up was a very good product and I think the Flex is just as good if not better. It seems on par with accuracy and I love the ability to have data sync in the background.

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

    Rated 5 out of 5 stars

    Does what it says

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

    This is a great tracker. It does what it says it will do and seems pretty accurate. I like the sleep monitoring.

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

    Rated 5 out of 5 stars

    great motivation

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

    This keeps me on track with making sure I get my walking in. It is also great for tracking my sleep patterns

    I would recommend this to a friend