Screen size :1.3 "color screen

Screen operation: single touch (virtual key)

Wristband length: perimeter 250/25.4= approximately 9.8 inches

Motion sensor :3D gravity acceleration sensor

Heart rate sensor: second generation dynamic heart rate sensor

Waterproof grade :IP67

System requirements: android 4.4 or above or i0s8.0 or above

Transmission mode: bluetooth 4.0