Smart Bracelet Heart Rate Blood Pressure Monitoring Blood Oxygen IP68.

Battery capacity: 200 mAh

OLED 0.95 inches

Weight: 5g

Compatible system: Bluetooth 4.0, Android 4.4, iOS 8.0 or above

Waterproof: Ip 68

Standby time: 30 days

Working time: 10-15 days

Multi language push

Band width 20mm and easy to change.