Year-End SaleEnds 1/1/26. Limited quantities. No rainchecks.

Skip to content
Gift Ideas
Main Content

Customer Ratings & Reviews

Your price for this item is $31.99
Clearance
The comparable value price is $79.99

Customer reviews

Rating 4.4 out of 5 stars with 10464 reviews

Rating Filter

Pros mentioned filter

Cons mentioned filter

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 82 Showing 1,621-1,640 of 10,464 reviews
  • Rated 4 out of 5 stars

    Works well with one quibble

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

    My wife bought this to help motivate her to keep moving more. She is in a group with coworkers and the social/competition aspect really does help keep you motivated to get up and get your steps in. The one quibble with this item is that it goes into "sleep" mode too easily and does so without you necessarily being aware. While in sleep mode, it does not track your steps. Since she doesn't really use the sleep tracking function, it would be a significant improvement if sleep mode could be readily disabled to prevent this from happening.

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

    Rated 5 out of 5 stars

    Great device for basic activity tracking

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

    I have looked around at several different activity trackers and this is by far my favorite. The flex is a very accurate tracker and the app is easy to use with a large dictionary of activities and foods.

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

    Rated 4 out of 5 stars

    Easy to sync

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

    It is a nice product that I have used daily. It helps me track steps, distance, sleep patterns, weight (with additional scale), and calories burn. App is fairly easy to use. I wish they had a dedicated iPad app rather than an iPhone app you have to enlarge. Great features online if you purchase their subscription, but the basic features should work for just about everyone.

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

    Rated 4 out of 5 stars

    Good fitness tracker and app

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

    This Fitbit Flex is a good fitness and sleep tracker but I returned it because I wanted it to do more, I am going to wait for the Charge HR.

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

    Rated 4 out of 5 stars

    Great reminder to keep moving

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

    Many great features. Love that it tracks my sleep pattern. I am disappointed that needs reset to record more than I thought it would ever.

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

    Rated 5 out of 5 stars

    Wonderful device--synced with program on phone

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

    I wanted a device that would sync with my food tracking program and provide me with additional information like sleep and goals, which although they are on different programs in my smartphone, some of them weren't that good. This is the most accurate tracker that I've found and easy to wear. I don't wear it in the shower although it says you can. Some people might be uncomfortable with the rubber in the band but the band is fully adjustable and comes with 2 different sized bands.

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

    Rated 5 out of 5 stars

    Works Great

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

    You have to get used to the vibration on the wrist. It startled me the first few times, because I am not use to having something vibrate on that body part. The app does not wake you up when it knows you are almost awake like some of the other apps do. The current sensor tech cannot differentiate between other non-walking movements like playing the drums or clapping your hands during a football game. Other than this, the product works well, battery is good, and it is easy to use.

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

    Rated 5 out of 5 stars

    great way to stay fit

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

    my favorite part of the Fitbit is how it tracks my sleep patterns. I don't know how it does it but it's pretty amazing. I love challenging my friend to step goals. It's a great way to stay in shape.

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

    Rated 5 out of 5 stars

    Intuitive, Simple Fitness Tracker

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

    Fitbit Flex is incredibly easy to get started with. Wonderful battery life (and pretty quick charging). The Fitbit app is incredibly simple, yet attractive (and equally easy to use). Highly recommended for anyone interested in tracking their steps and sleep quality. Favorite feature? Syncs with food-tracking apps/sites like MyFitnessPal.com! This feature is great for seeing how many actual calories are being burned on the daily, and counting them against calories consumed.

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

    Rated 5 out of 5 stars

    great item to track activity

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

    this has helped me to track my daily food intake and keep under calories allowed. helping in the recovery of back surgery logging number of steps taken and analyzing low moderate or high activity

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

    Rated 5 out of 5 stars

    Great to keep track of sleeping patterns.

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

    Gave this as a gift to my daughter who loves to run, work out and wanted to keep track of her sleep patterns. This item gives her all the daily information she wanted and she loves this gift. She loves the color band as she wears it to work as well. Since she is 29 years old, she wanted something that looked good, was comfortable and fit her small wrist. This product delivered it all.

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

    Works ok but requires a great deal data entry

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

    I like the Fit Bit. It's something I've wanted for a while. It monitors my steps, my distance and calories burned but to get a true result of my days activities I must input all of my meals including what and where they were eaten along with other information. I'm getting used to inputting all of this info but it took me a while to buy into it. On a positive note, once I've input the required data I get some very helpful results. Thanks

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

    Rated 5 out of 5 stars

    Great for all

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

    Really easy to use setup Light Goes with any clothes style Waterproof Wear it to bed Even has an alarm to wake you up

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

    Rated 5 out of 5 stars

    Great gadget to encourage fitness.

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

    I am enjoying using the Fitbit Force. All of my family received one for Christmas and we are competing with each other. This is encouraging us to get more exercise. The Fitbit is easy to setup on Apple Iphone 5s, but can't be set up from my IPad 2, but it does sync the results from my iPhone. The only complaint I have so far is the clasp which is difficult to fix securely and it is easy to catch it on something and pull it loose. This could make it to easy to lose the Fitbit.

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

    Rated 4 out of 5 stars

    Lives up to it's reputation

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

    I Bought this to help raise my awareness of my activity level. It absolutely does that. It's so easy to use that there is no excuse not to. It also syncs with my food logging app. As mentioned my band broke within the first month but fitbit's customer service was great and i had a replacement band within a week of contacting them. Overall I am very happy with my purchase.

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

    Rated 4 out of 5 stars

    Very useful and accurate

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

    This item is great for tracking workouts and goals.Very accurate location tracking.Gives lots of information.Price is a little high tho

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

    Rated 5 out of 5 stars

    Easy to set up, keeps you on track

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

    I really love the Flex! It keeps me on track with my activity and allows me to track my calories. But the things I like the best about it is that it has a vibrating alarm and it tracks my sleep activity! You can set it to log your sleep and it will show you active or restless times while you sleep. I have noticed that it sometimes does not sync well when I manually input my exercise, however. Sometimes it takes 15 minutes or so to update once I put in my elliptical workout.

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

    Rated 5 out of 5 stars

    I love my Fitbit.

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

    First I bought the Fitbit for my daughter she likes it then I bought one for myself I love it then I bought one more for my friend as a birthday gift everybody loves it and works perfectly!

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

    Rated 4 out of 5 stars

    wished it tracked my workouts better

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

    I like the Fitbit and it's easy to use. Just wished it tracked my workouts better for more accurate steps. Also, I wish is tracked stairs too!

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

    Rated 4 out of 5 stars

    Nice little gadget!

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

    Helps to be more aware of water intake and negative impact of sitting still for too long. I especially like the sleep tracking feature.

    I would recommend this to a friend