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Fitbit Flex™ Wireless Activity and Sleep Wristband (Black)

Model:

FB401BK

 | Catalog #: 63-809
Price:
$99.99
$99.99
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Expected Delivery: 3-5 business days

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  • Wakes you with a silent alarm so not to disturb your partner
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2

  • Powered by Fitbit's leading-edge accelerometer and altimeter
  • Accurately captures all-day activity that old-school pedometers can't handle
  • Tracks steps taken, stairs climbed, calories burned, hours slept, distance traveled & sleep quality
  • Wakes you with a silent alarm so not to disturb your partner
  • Rain, splash and sweatproof, allowing you to brave the elements
  • Syncs your data to PCs, Macs, iOS device and - coming soon - select Android phones
  • Share and compete with friends
  • Log your food, water, workouts, weight, and more using Fitbit's online tools
  • Export your Fitbit data to popular fitness Apps such as SparkPeople, Lose It!, MyFitnessPal and more

See Full Product Description

Free Ground Shipping on orders over $50.  More details
   Some exceptions apply..  More details


See all available promotions >
Availability:

ONLINE In stock
Usually ships in 1 - 2 business days
IN STORE
Available at most stores, find it near you


Go to Product Detail Page
Product Summary

Set a goal and go.

This slim, stylish device is with you all the time. During the day, it tracks steps, distance, and calories burned. At night, it tracks your sleep cycle and wakes you silently in the morning. Flex automatically syncs your data to your PC, Mac®, iPhone® (4S and 5), iPad® (3, Retina and mini), iPod touch®, and to select Android™ devices without plugging in or pushing buttons. This gives you real-time access to your stats on the Fitbit dashboard throughout the day. It's the motivation you need to get out and be more active.

  • Comfortable wristband tracks your activity, sleep and more using built-in accelerometer
  • Set a goal and use the LEDs to see how you're stacking up
  • Tracks steps taken, calories burned, distance traveled, active minutes, hours slept & sleep quality
  • Wear it all night and it'll measure your sleep cycle
  • Silent wake alarm gently vibrates to wake you at your desired time, without disturbing your partner
  • Automatically syncs your data to your computer, iOS or Android device without plugging in
  • Fitbit's free mobile App and free online dashboard gives you a snapshot of your progress
  • Earn badges for daily, weekly and lifetime achievements
  • Challenge and compete with friends and family on Fitbit.com
  • Export your Fitbit data to popular fitness Apps such as SparkPeople, Lose It!, MyFitnessPal and more
  • Includes a large and a small wristband to ensure a comfortable fit

You'll also need

  • PC requirements
  • Windows XP/Vista/7/8
  • USB port
  • Internet connection
  • Mac requirements
  • Mac OS X 10.5 and up
  • USB port
  • Internet connection
Pricing and availability: Please note that all prices are subject to change without prior notice. Prices advertised on this site are for online orders only. Prices on some items may differ from those advertised in RadioShack stores. All merchandise may not be available at all stores, and all stores may not participate in all sales promotions. We recommend you contact the store to confirm product availability and price.

What's in the box

  • Flex™ tracker
  • large and small wristbands
  • Wireless cync dongle
  • Charging cable
  • Free Fitbit.com membership
  • Access to free mobile apps for iPhone and Android
 

Shipping

Usually ships in 1 - 2 business days

What shipping method is right for me?

Other ways to get it


In store: Check availability
By phone: 1-800-843-7422

Manufacturer Warranty

  • Parts: 12 month
  • Labor: 12 month
Tech Specs

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Product Support

Product support (1 matches)

Date added Document
June 05, 2013 Fitbit Flex Wireless Activity and Sleep Wristband (Black) (User's Guide)

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Customer Reviews

REVIEW SNAPSHOT®

by PowerReviews
Fitbit Flex™ Wireless Activity and Sleep Wristband (Black)
 
3.6

(based on 11 reviews)

Ratings Distribution

  • 5 Stars

     

    (6)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (2)

  • 1 Stars

     

    (2)

75%

of respondents would recommend this to a friend.

Pros

  • Lightweight (3)

Cons

    Best Uses

    • Walking (4)
    • All day use (3)
    • Weight loss (3)
      • Was this a gift?:
      • No (7), Yes (4)

    Reviewed by 11 customers

    Sort by

    Displaying reviews 1-10

    Back to top

    Previous | Next »

     
    4.0

    i would recommend this product

    By nic

    from pa

    About Me Casual/ Recreational

    Verified Buyer

    Pros

    • Easy To Use
    • Lightweight

    Cons

      Best Uses

      • All Day Use
      • Running
      • Walking
      • Weight Loss

      Comments about Fitbit Flex™ Wireless Activity and Sleep Wristband (Black):

      This product is addictive once you download the app. Calculates your steps and calories. You are able to connect with friends to see total weekly steps. This can help encourage each other.

      • Was this a gift?:
      • No

      (1 of 2 customers found this review helpful)

       
      2.0

      FitBit Flex

      By Gppher II

      from Fort Worth TX

      About Me Casual/ Recreational

      Verified Buyer
      Staff Reviewer

      Pros

      • Compact Design
      • Lightweight

      Cons

      • Difficult To Use
      • Limited Functions
      • Poor Instructions

      Best Uses

      • All Day Use
      • Sleep
      • Walking
      • Weight Loss

      Comments about Fitbit Flex™ Wireless Activity and Sleep Wristband (Black):

      I have tried to use the product to measure my daily activity with limited success.

      • Was this a gift?:
      • No

      (2 of 2 customers found this review helpful)

       
      5.0

      Fit Bit Flex

      By Skinny Jenny

      from Jackson, KY

      About Me Gym Rat

      Verified Buyer

      Pros

      • Accurate
      • Compact Design
      • Easy To Use
      • Lightweight
      • Simple Controls

      Cons

        Best Uses

        • All Day Use
        • Running
        • Walking
        • Weight Loss

        Comments about Fitbit Flex™ Wireless Activity and Sleep Wristband (Black):

        I love being able to track my meals, sleep, and steps.

        • Was this a gift?:
        • No

        (7 of 8 customers found this review helpful)

         
        5.0

        Love it!!!!!

        By Kathy

        from Perryton, Tx

        Pros

          Cons

            Best Uses

              Comments about Fitbit Flex™ Wireless Activity and Sleep Wristband (Black):

              I received it as a gift and really love it. It sincs with my phone and iPad, so I can check in on my activity during the day. It keeps me focused on moving to get in my steps for the day! I love the fact that you can also set reminder alarms to go off. As a teacher, that is invaluable to me! I haven't had any problems with my fitbit, and would highly recommend it!

              • Was this a gift?:
              • Yes

              (5 of 5 customers found this review helpful)

               
              5.0

              Great tracker

              By Dee the field tech

              from Manteca,ca

              Verified Reviewer

              Pros

              • Went Swimming With It On

              Cons

                Best Uses

                • Walking

                Comments about Fitbit Flex™ Wireless Activity and Sleep Wristband (Black):

                I got this tracker over the christmas weekend. I had the fitbit one (which fell off when i was doing utility work on a pole), i got the zip which i gave to my wife and now i got the flex...i can say that the flex has gotten me back on my fitness awareness and discipline...i love my flex...im lost without it...The clasp is simple...just push together till you hear the two clasps click and it is on securely...im a field technician and i have the flex on me 24/7...till charging time of course...

                • Was this a gift?:
                • No

                (7 of 7 customers found this review helpful)

                 
                5.0

                Love it !

                By Anne

                from Pleasanton, ca

                Verified Reviewer

                Pros

                • Holds You Accountable

                Cons

                • none

                Best Uses

                  Comments about Fitbit Flex™ Wireless Activity and Sleep Wristband (Black):

                  I received this as a christmas gift, set up on my desktop, phone and i pad were super easy.
                  Have had it for 12 days and lost 6 lbs, i spend a lot of time working on the computer, and this holds me accountable to get in my daily walks, i log my food and water intake.
                  Most interesting was my sleep log, apparently i still sleepwalk !!
                  I'm very happy with my FitBit so far and highly recommend it !

                  • Was this a gift?:
                  • Yes

                  (3 of 10 customers found this review helpful)

                   
                  1.0

                  Waste of hard earned money

                  By Frustrated Fitbit Customer

                  from Columbia, SC

                  Pros

                    Cons

                      Best Uses

                        Comments about Fitbit Flex™ Wireless Activity and Sleep Wristband (Black):

                        I'm very disappointed with this wristband. It will not sync. It's very difficult to use and I would love a refund. Do not waste your time or money.

                        • Was this a gift?:
                        • Yes

                        (6 of 6 customers found this review helpful)

                         
                        5.0

                        Love It!!!

                        By Mike

                        from Ohio

                        Pros

                          Cons

                            Best Uses

                              Comments about Fitbit Flex™ Wireless Activity and Sleep Wristband (Black):

                              I love it! Syncs up easily to my smartphone and is very accurate with readings and activity. Battery life is amazing as I have charged it once in eight days. Highly recommend to anyone looking to track progress and activity!!!

                              • Was this a gift?:
                              • No

                              (6 of 6 customers found this review helpful)

                               
                              5.0

                              So addicting...

                              By Etien

                              from Fort Worth, TX

                              Pros

                              • Motivating

                              Cons

                                Best Uses

                                  Comments about Fitbit Flex™ Wireless Activity and Sleep Wristband (Black):

                                  I love my fitbit. I find myself at the end of a lazy day checking my steps and realizing I have hardly moved. Most of the time I get up and at least go for a walk, but it is always eye opening. This type of device really helps you understand your behavior and track it. The only thing I hate is removing it to charge the battery. If I charge over night I don't get to see my sleep pattern and I hate to miss a single step during the day.

                                  • Was this a gift?:
                                  • No

                                  (4 of 8 customers found this review helpful)

                                   
                                  2.0

                                  comes off wrist

                                  By Carol

                                  from Waye , Michigan

                                  Verified Reviewer

                                  Pros

                                    Cons

                                      Best Uses

                                        Comments about Fitbit Flex™ Wireless Activity and Sleep Wristband (Black):

                                        has fallen off wrist three times in six days of use. Not good for a 99.00 dollar investment. Fortunately we have found it each time. Next time ?

                                        • Was this a gift?:
                                        • Yes

                                        Displaying reviews 1-10

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