Huawei Display Type: AMOLED Resolution: 466 × 466 pixels, PPI 352 Display Size: 1.32 inches AMOLED color screen GPS: Dual-band Five-system GNSS (with Enhanced Satellite Antenna Array) Dimensions: 41.3 mm × 41.3 mm × 9.8 mm Bluetooth: 2.4 GHz, supports BT5.2 and BR + BLE Sensors: Accelerometer sensor, Gyroscope sensor, Magnetometer sensor, Optical heart rate sensor, Barometer sensor, Temperature sensor. Microphone: Supported Speaker: Supported Wrist Size: 120-190 mm Battery Life: Up to 7/4 days Charging Port: Wireless charging Charger Voltage: 5V-9V DC/2A Watch Case: Stainless steel Water Resistence: 5 ATM water-resistant Weight: Approximately 37 g (strap excluded)