Fitbit Flex™ Wireless Activity and Sleep Wristband (Black)

Model #: FB401BK | Catalog #: 6300809
Model #: FB401BK
Catalog #: 6300809


  • Tracks your activity & sleep
  • Sync and share your stats
  • 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 &

    Power Device Built-in rechargeable lithium-polymer battery
    Product Type Activity trackers
    Enclosure Color Black
    Model FB401BK
    Alarm TRUE
    Waterproof/Water Resistant TRUE
    Built-in Clock Yes
    Manufacturer Labor Warranty 12.0
    Manufacturer Parts Warranty 12.0
    Warranty Labor UOM month
    Warranty Parts UOM month
    Battery Features
    Chemistry Lithium Polymer
    Battery Type Product
    Size Specialty
    Rechargeable TRUE
    Capacity UOM mAh
    Min Operating Temperature -4.0
    Max Operating Temperature 113.0
    Max Altitude Operating 30000.0
    Cables Included Charging cable
    Supported Languages English
    Cordless/Wireless TRUE
    Operating Temperature UOM ° F