Brand: Huawei Screen: 1.43 inch Weight: 42.6 g System requirements: HarmonyOS 2 or later, Android 6.0 or later, iOS 9.0 or later Button: Power button + function button, top button supports rotable crown Waterproof Level: 5 ATM Waterproof Connectivity: Supports GPS - Supports Bluetooth Technology Microphone: Microphone Sensors: Acceleration sensor - Gyroscope sensor - Geomagnetic sensor - Optical heart rate sensor - Air pressure sensor - Temperature sensor