Product details of HUAWEI WATCH 3 46MM Smart Watch - eSIM Cellular Calling | Health Management | 3-Day Battery Life | FREE Strap SPECIFICATION SCREEN 1.43 inch AMOLED color screen, 466 x 466 pixels, It supports full-screen touch operations, including swiping, tapping, and pressing and holding. DIMENSION 46.2 mm (L) × 46.2 mm (W) × 12.15 mm (D) MATERIAL Watch body: Stainless steel+ceramic | Strap: Fluoroelastomer WEIGHT Approximately 54 g (without the strap) BUTTON Up and Down buttons with Rotatable Crown MEMORY 16 GB ROM, 2 GB RAM OPERATING SYSTEM Support Android 6.0 or later; iOS 9.0 or later BATTERY Battery Type: Built-in lithium-ion polymer battery | Battery Capacity: 450 mAh BLUETOOTH FREQUENCY 2.4 GHz, supports BT5.2 and BR+BLE BLUETOOTH RANGE 150 meters (without any obstructions) WI-FI Supported (only 2.4 GHz is supported) GPS Supported SENSOR Acceleration Sensor, Gyroscopic Sensor, Geomagnetic Sensor, Optical Heart Rate Sensor, Ambient Light Sensor, Barometer Pressure Sensor. SPEAKER Supported MICROPHONE Supported WATER RESISTANCE RATING 5 ATM water-resistant CHARGING PORT Wireless Charging