Mi Watch Black

OverviewAMOLED HD 1.39” large display, Corning Gorilla Glass 3, 16 days of long battery life with one charge on normal use, and 22 days in long-battery mode. 50+ hours battery life in Sports mode with GPS; 2 hours charging time. Bright display, 450 nits Very light, only 32g; 17 professional workout modes and 100 supported exercises; 5ATM water resistance (up to 50 m); Firstbeat motion algorithm; Built in GPS (GPS, Galileo, BDS, Glonass), geomagnetic compass and air pressure & elevation; 100+ rich watch faces, also can create custom watch faces using your favourite photos; Full catalog of health variable readings: Blood oxygen level monitoring, stress level monitoring, breath training, body energy monitoring, heart rate monitoring in real time, sleep cycle monitoring (tracking REM, deep and light sleep); 6 Colorful straps selection Phone camera remote function. Native emoji support. Frame colors: black/navy blue/beige; Display: 1.39 inch AMOLED display; Resolution: 454 × 454 pixels; RAM: 16MB, ROM: 1GB; Wireless connections: Bluetooth 5.0 BLE; Sensors: Heart rate sensor, acceleration sensor, gyroscope, geomagnetic sensor, baraceptor, ambient light sensor, SpO2 sensor; Satellite positioning: GPS, GLONASS, BDS, GALILEO; Battery capacity: 420mAh; Waterproof level: 5ATM swimming waterproof; Operating temperature: -10°C ~ 45°C