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Customer Ratings & Reviews

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Customer reviews

Rating 4.4 out of 5 stars with 10464 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 142 Showing 2,821-2,840 of 10,464 reviews
  • Pros mentioned:
    Sleep tracking

    Rated 5 out of 5 stars

    works great

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

    I can track instantly my activity and track it weekly.

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

    Rated 5 out of 5 stars

    Great Device!

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

    I did research before purchasing, lived up to all expectations. Very reliable and easy to use.

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

    Rated 5 out of 5 stars

    Great fitness accessory

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

    I love this item! It is easy to use and you do not need to constantly charge it. I am able to track my every step as well as other fitness activity. It has aided in my weight loss and allows me to easily track my goals.

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

    Rated 5 out of 5 stars

    This item is great for getting into shape!

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

    This item works as intended. It does a great job and tracking steps and helping you meet your goals (steps, miles, calories burned, etc.) while also monitoring your calorie intake.

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

    Rated 4 out of 5 stars

    Great fun. Works well.

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

    Gets you moving. Great for fun family competitions

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

    Rated 5 out of 5 stars

    Simple easy wearable for anyone

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

    Really easy to use and would highly reccomend for anyone looking to track sleep and exercise

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

    Rated 5 out of 5 stars

    Great activity tracker

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

    I've had my Fitbit Flex just over a month. It works as advertised and does what I expected it to do. It is easy to use. Syncs over Bluetooth with my phone (Nexus 4). One of the best parts is it syncs with MyFitnessPal, which I use to track what I'm eating. MyFitnessPal will take into account your activity on the Fitbit and add the calories you burned to your daily total. I also like the weekly progress emails and sleep tracking. I had one day where it didn't capture my walk on the treadmill desk, but I wonder if that was due to a low battery - hasn't been a problem since. I wish it had a watch (which was a feature on the Force, but that product was recalled). I bought a Bitbelt to keep it secure, since I know people who have lost their tracker. Overall, great product if you're looking for a way to track basic activities, like walking. Someone who is more intense about fitness might want something fancier (GPS, heart-rate monitor,etc), but this suits my needs.

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

    Rated 5 out of 5 stars

    fitbit flex is worth it

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

    I got the fitbit flex to see how my sleep patterns are. It has done that for me but it has also been a great motivator for me..seeing how many steps I've taken and wanting to max out all of the sections brings out the competitive nature in myself. It gave me the motivation to be more active

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

    Rated 5 out of 5 stars

    Keeps me going

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

    The fitbit is comfortable, battery has great life and it is really a great motivational tool.

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

    Rated 5 out of 5 stars

    Awesome Accessory

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

    This thing goes above and beyond my expectations and I like how you can change out the jacket

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

    Rated 5 out of 5 stars

    Fitbit

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

    This was a lot easier to use since it is on your wrist.

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

    Rated 5 out of 5 stars

    Great starter

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

    My daughter loves keeping track of her steps and the fact in syncs to her ipad is a plus.

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

    Rated 4 out of 5 stars

    My wife uses it daily and enjoys the results

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

    Has helped her with her goal on exercise and sleep

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

    Rated 5 out of 5 stars

    Great Device

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

    Makes you more 'aware' of your daily activities. I found the sleep tracker very interesting!

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

    Rated 5 out of 5 stars

    Second unit purchased as a gift

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

    Had bought one for the wife and she loved it so much we got one for her mother. Great Buy...

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

    Rated 4 out of 5 stars

    great fitbit keep you healthy

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

    The fitbit encourage you to do your steps each day.

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

    Rated 5 out of 5 stars

    Fitbit Flex

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

    I love how simple and easy the Fitbit is to use. I like how easy it is to snap on as well.

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

    Rated 5 out of 5 stars

    Love it... 2 months and 20 lbs down

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

    Love love love it. Great battery life too! Helps you keep on track of whatever your goal is.

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

    Rated 5 out of 5 stars

    Great!

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

    Keeps track of my sleeping patterns and exercise and also let's me track my calorie intake.

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

    Rated 5 out of 5 stars

    Great product

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

    She had to replace it once bit it works great....wear it day and night to see great results

    I would recommend this to a friend