Dimensions 46 x 33.5 x 10.8 mm Wrist Size Active Edition 130–210 mm Classic Edition 140–210 mm Elegant Edition 120-200 mm Speaker Supported Microphone Supported Weight Active Edition Approximately 26 g (strap excluded) Classic Edition Approximately 30 g (strap excluded) Elegant Edition Approximately 30 g (strap excluded) Display Size 1.74 inches AMOLED colour screen Resolution 336 x 480 pixels, PPI 336 Sensors 9-axis IMU sensor (Accelerometer sensor, Gyroscope sensor,Geomagnetic sensor) Optical heart rate sensor Button Full screen touch, side button Water Resistance 5ATM water-resistant Environment Ambient Operating Temperature -10 ℃ – +45 ℃ Watch Case Active Edition Material Front case: polymer Rear case: polymer Classic Edition Material Front case: aluminium Rear case: polymer Elegant Edition Material Front case: aluminium Rear case: polymer Watch Strap Active Edition Midnight Black Silicone Strap Sakura Pink Silicone Strap Isle Blue Silicone Strap Classic Edition Nebula Grey Leather Strap Moon White Leather Strap Elegant Edition Premium Gold Milanese Strap Silver Frost Milanese Strap Connectivity Active Edition NFC Not Supported Bluetooth 2.4 GHz, supports BT5.2 and BR+BLE Classic Edition NFC Not Supported Bluetooth 2.4 GHz, supports BT5.2 and BR+BLE Elegant Edition NFC Not Supported Bluetooth 2.4 GHz, supports BT5.2 and BR+BLE System Requirements Android 6.0 or later iOS 9.0 or later Battery Life Typical usage: 10 days Default settings are used, 30 minutes of Bluetooth calling per week, 30 minutes of audio playback per week, heart rate monitoring and sleep tracking are enabled, 30 minutes of exercise per week, message notification is enabled (50 SMS messages, 6 calls, and 3 alarms per day), and the screen is turned on 200 times per day. Heavy usage: 7 days Default settings are used, 30 minutes of Bluetooth calling per week, 30 minutes of audio playback per week, heart rate monitoring and HUAWEI TruSleep™ are enabled, 60 minutes of exercise per week, message notification is enabled (50 SMS messages, 6 calls, and 3 alarms per day), and the screen is turned on 500 times per day. *Based on results from HUAWEI lab tests. The actual usage may vary depending on product differences, user habits, and environment variables. Charging Port Magnetic charging thimble Charging Charger Voltage and Current Requirements 5V/1A