4th of July Appliances Sale.Free delivery. Ends 7/8. Terms apply.Shop now

Skip to contentGo to Product Search
Main Content

Customer Ratings & Reviews

No content
  • Front. Fitbit - Flex Wireless Activity Tracker - Blue.
  • Angle. Fitbit - Flex Wireless Activity Tracker - Blue.

Fitbit - Flex Wireless Activity Tracker - Blue

Model:
FB401BU
SKU:
4606600
Highly rated by customers for:
Loading...

Customer reviews

Rating 4.4 out of 5 stars with 10463 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 466 Showing 9,301-9,320 of 10,463 reviews

  • Awesome

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

    I've used many fitness trackers before and I find fitbit flex to be one of the best ones!

    This review is from Fitbit - Flex Wireless Activity and Sleep Tracker Wristband - Black

    I would recommend this to a friend

  • Couldn't pass up the steal of a deal

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

    Brand new Flex at well below the retail cost. Made for a Christmas present.

    This review is from Fitbit - Flex Wireless Activity and Sleep Tracker Wristband - Slate

    I would recommend this to a friend

  • Super fitness tool

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

    Gift for my husband. He loves to review his progress. He can easily do this in his computer.

    This review is from Fitbit - Flex Wireless Activity and Sleep Tracker Wristband - Slate

    I would recommend this to a friend

  • Perfect for healthy living

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

    I love my fitflex, the band is super comfy! It goes with everything I wear

    This review is from Fitbit - Flex Wireless Activity and Sleep Wristband - Pink

    I would recommend this to a friend

  • Great product

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

    I love the sleep monitoring function and the step counter makes me want to be more active.

    This review is from Fitbit - Flex Wireless Activity and Sleep Tracker Wristband - Black

    I would recommend this to a friend

  • Great color for a girl

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

    Bought this for my wife and she loved it. Color is great and its easy to use.

    This review is from Fitbit - Flex Wireless Activity and Sleep Wristband - Pink

    I would recommend this to a friend

  • Great product

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

    Love Fitbit. Their products are top of the line and they stand behind them.

    This review is from Fitbit - Flex Wireless Activity and Sleep Tracker Wristband - Slate

    I would recommend this to a friend

  • Great tracker at an even better price

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

    Bought for my daughter for Christmas. She uses it all the time and loves it.

    This review is from Fitbit - Flex Wireless Activity and Sleep Tracker Wristband - Slate

    I would recommend this to a friend

  • Lovely

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

    I love this product. It works really well. Wish it stayed charged up for a little longer.

    This review is from Fitbit - Flex Wireless Activity Tracker - Teal

    I would recommend this to a friend

  • gift

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

    She loves it. Jusr whar she wanted for Christmas!!

    This review is from Fitbit - Flex Wireless Activity and Sleep Wristband - Pink

    I would recommend this to a friend

  • Great product

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

    I love my FitBit. It is worth every penny and it has helped me be more active.

    This review is from Fitbit - Flex Wireless Activity and Sleep Tracker Wristband - Black

    I would recommend this to a friend

  • Great fitness tracker

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

    Love my Fitbit , keeps me movtivated to stick with my fitness routine and keeps me active

    This review is from Fitbit - Flex Wireless Activity and Sleep Tracker Wristband - Slate

    I would recommend this to a friend

  • Excellent Tracker

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

    It provides all the pertinent info needed for basic or moderate fitness buff.

    This review is from Fitbit - Flex Wireless Activity and Sleep Tracker Wristband - Black

    I would recommend this to a friend

  • good fitbit

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

    it does what I was wanting, steps and miles. also does more than I expected.

    This review is from Fitbit - Flex Wireless Activity and Sleep Tracker Wristband - Slate

    I would recommend this to a friend

  • works as expected

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

    if you want any accessories they are backordered and hard to come by, overall happy with purchase but would like more tailored stats instead of generic stats

    This review is from Fitbit - Flex Wireless Activity and Sleep Tracker Wristband - Black

    No, I would not recommend this to a friend

  • Fitbit is better then nikefuel bracelet.

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

    You can manage your goal,calorie intake ,calories burned, app compatible with android.

    This review is from Fitbit - Flex Wireless Activity and Sleep Tracker Wristband - Black

    I would recommend this to a friend

  • Worked great

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

    The Fitbit worked great and liked using the competitive aspect with friends

    This review is from Fitbit - Flex Wireless Activity and Sleep Tracker Wristband - Black

    I would recommend this to a friend

  • Could be a little larger, in length

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

    The band is a little tight, for large wristed persons. The software is simple to use.

    This review is from Fitbit - Flex Wireless Activity and Sleep Tracker Wristband - Slate

    I would recommend this to a friend

  • Great for Motivation to stay fit or get fit.

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

    I love this. I see why so many people have a flex!

    This review is from Fitbit - Flex Wireless Activity Tracker - Teal

    I would recommend this to a friend

  • This is a great fitness tracker.

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

    The FITBIT does everything I need. It is a great addition to my fitness plan.

    This review is from Fitbit - Flex Wireless Activity Tracker - Teal

    I would recommend this to a friend
Page 466, Showing 9,301-9,320 of 10,463 reviews
Sign in or Create Account

Get the latest deals and more.

Best Buy appLearn more
Share on YouTubeShare on InstagramShare on TikTokShare on FacebookShare on PinterestShare on X
Best Buy Canada
AccessibilityTerms & ConditionsPrivacyInterest-Based AdsState Privacy RightsHealth Data PrivacyDo Not Sell/Share My Personal InformationLimit Use of My Sensitive Personal InformationTargeted Advertising Opt OutCA Supply Chain Transparency Act
In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.