Battery Capacity: 471 mAh (typical value) Charging Method: Magnetic Charging Stand Charging Time: About 2.5 hours Battery Life: 14 days Basic Usage Battery Life: 38 days
Sensor Health Huami self-developed BioTracker™ 2 PPG (support blood oxygen) biological data sensor Air pressure sensor, Acceleration sensor, Gyroscope sensor, 3-axis geomagnetic sensor, Ambient light sensor
Connection Bluetooth 5.0 WLAN 2.4GHz
Strap Material Silicon or Leather, Quick release Width: 22mm Clasp: Classic Pin Buckle
Support Speaker, Microphone, Linear Motor
Packing List Watch body (including standard strap) / charging base / instruction manual
Supported Devices Android 5.0 or iOS 10.0 and above