display: 1.955 Inch TFT screen，320*385 Resolution

CPT: Realtek 8773EWE

Heart rate sensor: HX 3918

Touch the keys: G+F Full-screen touch + physical buttons

Bluetooth: Bluetooth5.2

Life: Normal use for 5-7 days, Standby for 30 days

Waterproof level: IP67

The system supports: Android 4.4 or above,IOS 9.0 or above

Size: 45.2*38.7*8.8 mm

Weight: 55g

Battery capacity:300 mAh polymer