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Fitbit Flex 2, Black (US Version)

3.9 out of 5 stars 4,592 ratings

Currently unavailable.
We don't know when or if this item will be back in stock.
Brand Fitbit
Material Elastomer
Colour Black
Compatible devices Smartphones, Tablets, Desktops
Team name Fitbit
Product dimensions 25.4L x 1.1W x 0.9H centimetres
Item weight 0.04 Pounds
Sensor type Accelerometer
Battery description Lithium-Ion Polymer
UPC 810351028888

About this item

  • Track steps, distance, calories burned and active minutes. LED display lights up to show progress toward your daily goal
  • Ultra-thin, removable tracker hides in bands, pendants and bangles
  • Swim-proof for tracking swimming, life-proof for wear in the ocean, shower, pool and beyond
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Top Brand

Fitbit

91% positive ratings from 5K+ customers

10K+ recent orders from this brand

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Important information

Directions:

Keep it Clean: Regularly clean your band and wrist—especially after working out or sweating. Rinse the band with water or wipe it with a small amount of rubbing alcohol. Do NOT use hand soap, body soap, dish soap, hand sanitizers, cleaning wipes or household cleaners which could get trapped beneath the band and irritate skin. Always dry the band well before putting it back on. Keep it Dry: While Fitbit devices are water resistant*, it’s not good for your skin to wear a wet band for long periods of time. If your elastomer band gets wet—like after sweating or showering—rinse and dry it thoroughly before putting it back on your wrist. Be sure your skin is dry before you put your band back on. Don’t Wear It Too Tight: Make sure your band isn’t too tight. Wear the band loosely enough that it can move back and forth on your wrist. If you use Fitbit products with Purepulse Heart Rate tracking, for better heart rate readings during exercise, we suggest wearing the band so it’s secure, but not too tight, and wearing the band higher on your wrist (about 2-3 finger widths above your wrist bone). Lower the band on your wrist and loosen it after exercise. Give Your Wrist a Rest: Prolonged rubbing and pressure may irritate the skin, so give your wrist a break by removing the band for an hour after extended wear. Keep it Clean: Regularly clean your band and wrist—especially after working out or sweating. Rinse the band with water or wipe it with a small amount of rubbing alcohol. Do NOT use hand soap, body soap, dish soap, hand sanitizers, cleaning wipes or household cleaners which could get trapped beneath the band and irritate skin. Always dry the band well before putting it back on. Keep it Dry: While Fitbit devices are water resistant*, it’s not good for your skin to wear a wet band for long periods of time. If your elastomer band gets wet—like after sweating or showering—rinse and dry it thoroughly before putting it back on your wrist. Be sure your skin is dry before you put your band back on. Don’t Wear It Too Tight: Make sure your band isn’t too tight. Wear the band loosely enough that it can move back and forth on your wrist. If you use Fitbit products with Purepulse Heart Rate tracking, for better heart rate readings during exercise, we suggest wearing the band so it’s secure, but not too tight, and wearing the band higher on your wrist (about 2-3 finger widths above your wrist bone). Lower the band on your wrist and loosen it after exercise. Give Your Wrist a Rest: Prolonged rubbing and pressure may irritate the skin, so give your wrist a break by removing the band for an hour after extended wear.

Product information

Technical Details

Color ‎Black
Size ‎1 Count (Pack of 1)
Team ‎Fitbit
Compatible with ‎Smartphones, Tablets, Desktops
Height ‎7.95 inches
Item display length ‎3.94 inches
Weight ‎18 g
Item display width ‎1.3 inches
Material type ‎Elastomer
Number of items ‎1
Features ‎sleep monitor
Sport ‎Fitness
Batteries included? ‎Yes
tech_spec_battery_description_toys ‎Lithium-Ion Polymer
Brand ‎Fitbit
Department ‎Women's
Manufacturer ‎Fitbit
Item model number ‎FB403BK
Product Dimensions ‎25.4 x 1.14 x 0.94 cm; 18.14 g
ASIN ‎B01KH2PV4U

Additional Information

Batteries 1 CR2 batteries required. (included)
Date First Available 31 Aug. 2016
Customer Reviews
3.9 out of 5 stars 4,592 ratings

3.9 out of 5 stars
Best Sellers Rank
Is discontinued by manufacturer No

Warranty & Support

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Fitbit Flex 2, Black (US Version)


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Product description

Product Description

Meet the all-new Fitbit Flex 2—a slim, swim-proof fitness wristband that’s ready to go wherever life takes you. The ultra-thin, removable tracker hides in bands, bangles and pendants, so you can wear it in a way that’s all your own. Automatic all-day activity and sleep tracking show you how your entire day adds up, and Smart Track automatic exercise recognition records your exercises for you. The discreet progress display uses color-coded LED lights to keep you connected to calls, texts and Reminders to Move. Plus you don’t have to worry about getting it wet—whether you’re swimming in the pool or running in the rain. It’s the next generation model of our most iconic tracker. No fuss, all fun, and fit for every you.

Directions

Keep it Clean: Regularly clean your band and wrist—especially after working out or sweating. Rinse the band with water or wipe it with a small amount of rubbing alcohol. Do NOT use hand soap, body soap, dish soap, hand sanitizers, cleaning wipes or household cleaners which could get trapped beneath the band and irritate skin. Always dry the band well before putting it back on. Keep it Dry: While Fitbit devices are water resistant*, it’s not good for your skin to wear a wet band for long periods of time. If your elastomer band gets wet—like after sweating or showering—rinse and dry it thoroughly before putting it back on your wrist. Be sure your skin is dry before you put your band back on. Don’t Wear It Too Tight: Make sure your band isn’t too tight. Wear the band loosely enough that it can move back and forth on your wrist. If you use Fitbit products with Purepulse Heart Rate tracking, for better heart rate readings during exercise, we suggest wearing the band so it’s secure, but not too tight, and wearing the band higher on your wrist (about 2-3 finger widths above your wrist bone). Lower the band on your wrist and loosen it after exercise. Give Your Wrist a Rest: Prolonged rubbing and pressure may irritate the skin, so give your wrist a break by removing the band for an hour after extended wear. Keep it Clean: Regularly clean your band and wrist—especially after working out or sweating. Rinse the band with water or wipe it with a small amount of rubbing alcohol. Do NOT use hand soap, body soap, dish soap, hand sanitizers, cleaning wipes or household cleaners which could get trapped beneath the band and irritate skin. Always dry the band well before putting it back on. Keep it Dry: While Fitbit devices are water resistant*, it’s not good for your skin to wear a wet band for long periods of time. If your elastomer band gets wet—like after sweating or showering—rinse and dry it thoroughly before putting it back on your wrist. Be sure your skin is dry before you put your band back on. Don’t Wear It Too Tight: Make sure your band isn’t too tight. Wear the band loosely enough that it can move back and forth on your wrist. If you use Fitbit products with Purepulse Heart Rate tracking, for better heart rate readings during exercise, we suggest wearing the band so it’s secure, but not too tight, and wearing the band higher on your wrist (about 2-3 finger widths above your wrist bone). Lower the band on your wrist and loosen it after exercise. Give Your Wrist a Rest: Prolonged rubbing and pressure may irritate the skin, so give your wrist a break by removing the band for an hour after extended wear.

Customer reviews

3.9 out of 5 stars
4,592 global ratings

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Top reviews from United Kingdom

There are 0 reviews and 2 ratings from United Kingdom

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  • Parth
    5.0 out of 5 stars Great product with very few flaws
    Reviewed in India on 6 December 2016
    Reviewing after around 10 days of use

    Pros:
    Excellent tracking - Fitbit's algorithms are very accurate at tracking the distances and exercises even without having a GPS sensor built in
    Excellent app - love the infographics shown. it is one thing being able to track steps and another representing it beautifully in all the myriad ways that they do
    Very lightweight - get used to wearing it in just a few hours
    Swim-proof - have yet to go for a swim but was one of the major reasons for me buying it

    Cons:
    Battery - this is the biggest let down. for a device which doesn't have GPS or a screen, the 4-5 day battery life is a major let-down. The compact, lightweight form factor only partially makes up for this
    No clock - call me a tradionalist, but if I'm wearing something on my wrist, it should bloody well show the time
    No heart-rate monitor, GPS - while Fitbit's algorithms do a great job of calculating calories and distances, it is always good to have dedicated monitors for these. but then, this is the cheapest of the Fitbits
  • Pat Comerford
    5.0 out of 5 stars Vacuum cleaner rubber bands.
    Reviewed in the United States on 2 June 2025
    Great bands for my vacuum cleaner. It is working great.
  • João Luiz Fontana de Figueiredo
    4.0 out of 5 stars Excelente, porém...
    Reviewed in Brazil on 9 January 2019
    Produto excelente, bonito, leve e ótimo para o dia a dia... O único defeito é que não notifica mensagens de texto do WhatsApp!
    Report
  • David V
    5.0 out of 5 stars Buen monitor
    Reviewed in Mexico on 31 October 2017
    Me agrado bastante esta banda. Dudaba en adquirirla debido a que no tiene pantalla. Pero a favor tiene que es demasiado delgada y discreta y es a prueba de agua. La pantalla no la extranie ya que toda la informacion esta disponible en el celular mediante bluetooth.
  • Abbas alaqeel
    5.0 out of 5 stars التتبع
    Reviewed in Saudi Arabia on 7 September 2023
    سوار حلو ويجي مقاسين داخل الكرتون ويقرا الخطوات والتمارين عن طريق التطبيق وتنبيه بالمكالمات والرسائل عن طريق الاهتزاز
    شكرا على المنتج