Estone® Large L Small Replacement Wrist Band Clasp For Fitbit Flex Bracelet New (Blue Gray, Small)

Smart wristband with OLED screen
Clearly displays health parameters including steps, calories, distance, time and sleep quality
Supports Bluetooth V4.0

1,Health helper:A sport healty system, tracks your daily activity and sleep quality. Make your life more Funny.
2, OLED screen:Show the steps,Calorie,Distance,Time,Sleep quality clearly.
3, Support Bluetooth 4.0 Low energy Technology:utomatically syncs your data to PCs, Macs, iPhone 4S & 5,iPad 3, Retina & mini, iPod touch, and to select Android Phones.

Integrate information about your workout with real-time feedback
We created a proprietary, unique technology that tracks your physical motion. It combines 3 different sensors to form a 9-axis motion-sensing hardware.
It combines 3 different sensors to form a 9-axis motion-sensing hardware. Coupling the hardware with the software, Moov is able to reconstruct your exact motion. This technology is primarily used in strategic missile.

This smart bracelet with OLED screen clearly displays health parameters including steps, calories, distance, time and sleep quality.
With silicone adjustable wristband, light weight feature, you can wear it comfortablely, such as running, climbing.
When you do exercise, it can record your sports data. When you sleep, it can monitor your sleep. It also can wake you up by vibrating gently.