Memorial Day SaleEnds 5/25. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product Search
Main Content

Customer Ratings & Reviews

No content
  • Front. Fitbit - Flex 2 Activity Tracker - Black.
  • Angle. Fitbit - Flex 2 Activity Tracker - Black.
  • Alt View 1. Fitbit - Flex 2 Activity Tracker - Black.
  • Alt View 11. Fitbit - Flex 2 Activity Tracker - Black.
  • Alt View 12. Fitbit - Flex 2 Activity Tracker - Black.
  • Alt View 13. Fitbit - Flex 2 Activity Tracker - Black.
  • Alt View 14. Fitbit - Flex 2 Activity Tracker - Black.
  • Alt View 15. Fitbit - Flex 2 Activity Tracker - Black.
  • Alt View 16. Fitbit - Flex 2 Activity Tracker - Black.
  • Fitbit Flex 2 video 0 minutes 30 seconds

Fitbit - Flex 2 Activity Tracker - Black

Model:
FB403BK
SKU:
5579217
Highly rated by customers for:
Loading...

Customer reviews

Rating 4.5 out of 5 stars with 2705 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.1 out of 5 stars

  • Quality

    Rating 4.3 out of 5 stars

  • Ease of Use

    Rating 4.2 out of 5 stars

Pros mentioned filter

Cons mentioned filter

92%would recommend to a friend

Customers are saying

Customers are satisfied with the Flex 2 Activity Tracker's ease of use, sleep tracking, water resistance, and compact size. Many appreciate its accurate step tracking and lightweight design, while some found the battery life to be insufficient. A lack of a heart rate monitor and display were also noted as shortcomings by some users.

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 124 Showing 2,461-2,480 of 2,705 reviews

  • Great

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

    Great quality and gets the job done. Great for a fitness guru

    I would recommend this to a friend

  • Great for beginner runner

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

    Bought as a gift for Christmas. They loved it! Recommend

    This review is from Fitbit - Flex 2 Activity Tracker - Lavender

    I would recommend this to a friend

  • Excellent product

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

    Perfect size and my husband loves the vibration alarm!

    I would recommend this to a friend

  • easy to set up

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

    I thought it was easy to set up and allows me to block numbers

    This review is from Fitbit - Flex 2 Activity Tracker - Lavender

    I would recommend this to a friend

  • Great design for a step tracker

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

    Overall it does what I need and can also track any swimming.

    I would recommend this to a friend

  • Efficient and easy to wear

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

    Great buy, efficient, easy and comfortable to wear.

    I would recommend this to a friend

  • Great way to track your progress

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

    Great way to track your progress with elegant tracker.

    This review is from Fitbit - Flex 2 Activity Tracker - Lavender

    I would recommend this to a friend

  • Fitbit Flex 2

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

    I loved the lavender color and functionality is great!

    This review is from Fitbit - Flex 2 Activity Tracker - Lavender

    I would recommend this to a friend

  • Just Okay

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

    I bought this particular fitbit because I love to swim. It did do it's job of being able to get wet and track that you are active. You have to go into the app and write in that you were swimming and the distance. I was hoping that this would track distance better than that.

    This review is from Fitbit - Flex 2 Activity Tracker - Lavender

    No, I would not recommend this to a friend

  • Great

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

    I bought this for my father for Christmas. He loves it.

    I would recommend this to a friend

  • Great fit

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

    I bought it for my husband birthday and he loved it.

    I would recommend this to a friend

  • Great Product

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

    Great product for anyone. Any age group can use with ease.

    This review is from Fitbit - Flex 2 Activity Tracker - Lavender

    I would recommend this to a friend

  • Works great

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

    I like the FitBit line of products. It works well.

    I would recommend this to a friend

  • Easy to use

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

    Kinda cumbersome to set up to iPad but worth the purchase

    I would recommend this to a friend

  • Works

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

    Works well, bought as a gift and they really seem to like it.

    I would recommend this to a friend

  • make sure you look at size - runs big

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

    make sure you look at size - runs big comfortable band

    I would recommend this to a friend

  • Great item

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

    I gave it to my mother in law for mothers day, sheloved it!

    I would recommend this to a friend

  • love it

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

    it really gets me motivated to moved more. i recommend it.

    I would recommend this to a friend

  • Great Purchase

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

    I enoyed my purchase and would recommend to anyone.

    I would recommend this to a friend

  • Works for me but hard to manipulate

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

    This does what I need it to but it’s hard to work with

    I would recommend this to a friend
Page 124, Showing 2,461-2,480 of 2,705 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.