Fitbit Flex Activity and Sleep Tracker Wristband FB401FLEXBK- Android iOS- Black Condition:Grade A and programming

and programming

8GHz quad-core Intel Core i7 (Turbo Boost up to 3

Storage:16 GB (up to 8

entertainment

Requires 2 AA batteries

Fitbit Flex Activity and Sleep Tracker Wristband FB401FLEXBK- Android iOS- Black Condition:Grade A and programmingGenuine Fitbit name brand products, The Flex Series Activity Wristband. Model: FB401FLEXBK This model comes with an all black silicone band and display unit. Features: Compatible with Android, iOS, and Windows devices. Tracks all day activity like steps, distance, calories burned and active minutes Measure your sleep quality and wake with a silent, vibrating alarm LED lights show how your day is stacking up against your goal Fits comfortably around