Skip to contentGo to Product SearchGo to Footer
Main Content

Customer Ratings & Reviews

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

Fitbit - Flex Wireless Activity Tracker - Navy

Model:
FB401NV
SKU:
4606700
Highly rated by customers for:
Your price for this item 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 382 Showing 7,621-7,640 of 10,464 reviews
  • Pros mentioned:
    Sleep tracking

    Awesome Product!

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

    I love everything about my fitbit flex! I really enjoy the fact i can track my sleep also!

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

    I would recommend this to a friend

  • Not bad

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

    Purchased this because it fit more like a watch. I have an UP band that I like but unfortunately gets caught on stuff a lot. So, decided to try the fitbit. Really like the looks of it and the wireless but the readout on my cellphone left a bit to be desired.

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

    I would recommend this to a friend

  • Motivational

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

    A great motivational tool. I find it very inspirational and habit forming

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

    I would recommend this to a friend

  • Gave as gift, so far not impressed

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

    Got it as a Christamas gift. So far syncing to her iphone is not working or I have not figured out if it is working. Sync's to laptop. Still working on dashboard and what is right and wht is made up. If we can figure it out, looks great....... To soon to tell

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

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

    Tracks my every step

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

    I like the way you charge battery. No removing device from bracelet to charge

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

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

    This product keeps me moving!

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

    It's easy to use and easy to set up! It's nice to challenge your friends to keep moving.

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

    I would recommend this to a friend

  • Enjoy the product very much

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

    Use it every day! Try to reach all my goals. I have lost weight using the product as well..

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

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

    excellent. very accurate

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

    Great product. Fast pick up. Easy to use. Recommended. Comfortable. Wish came in other colors

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

    I would recommend this to a friend

  • For me, the Fitbit works well.

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

    I like this product as it helps to keep me motivated. It syncs with Map My Walk and My Fitness Pal which I really like. I get a weekly email letting me know my weekly stats. It is hard to get the band to fasten the first few times you put it on but after a few uses it becomes easier. I feel it was worth the money.

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

    I would recommend this to a friend

  • Great

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

    I love the size of this Fitbit. I can wear it with all my favorite accessories

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

    I would recommend this to a friend

  • Not so tough when u work outside for a living. sn

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

    Snap comes loose often when u perform tasks with your hands easily comes off

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

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

    Easy to use

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

    I'm not tech smart this was perfect for me bought on as a gift later as well!

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

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

    Good Tracker

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

    It seems to work good and has good enough accuracy.

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

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

    Works great!

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

    Fit Bit works great and ensures I stay active. It is also fun to track how I'm sleeping.

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

    I would recommend this to a friend

  • Great for keeping track.

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

    I truly like this. I need something to give me courage and motivation. It has done the job.

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

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

    FitBit Flex

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

    So convenient to use and I love ow you don't even realize you have it on!! Love it!!!!!

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

    I would recommend this to a friend

  • Excellent band

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

    Great replacement band for the fit bit. Good fit and good price

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

    I would recommend this to a friend

  • I like the idea of fitbit

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

    This was on sale, but I think I would have liked the step up model better.

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

    I would recommend this to a friend

  • seemed ok

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

    I bought this as a gift for my father to try to give him the nudge that he needs to be more active. when he open the gift he told me that I have a better chance of seeing god then of him wearing this. I think it wasn't his color. Or he just doesn't want to be healthy. Took it back the next day

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

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

    Love this!

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

    I love that it tracks everything! Takes the guess work out of figuring it out on your own.

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

    I would recommend this to a friend
Page 382, Showing 7,621-7,640 of 10,464 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.