Mainchip:Nordic nrf52832 

Movement Sensor:Accelerator 

HR Sensor:PAH8011 

Operation:Touch key 

Battery:80mAh 

Bluetooth:Bluetooth 4.0 BLE 

Phone OS: IOS 8.0 or above, Android 4.4 or above 

Battery Life:7 days,Charge Time:2 Hours 

Charge Method:USB charge cable

Water Resistance:IP67

Accessories:user manual,USB charge cable,gift box.

Strap:TPU,Case:PC+ABS 

Band Size:250*19*8.5mm,Weight:17g 

Package Size:95*27*147mm