Mi Band 9 Pro Global – Black – OP

Key Features:Display: 1.74”AMOLEDResolution: 360×480, 336 PPIScreen brightness: Max 1200 nitsWireless connectivity: Bluetooth®5.4Wrist strap material: TPUAdjustable length: 135-205mmOperating temperature: 0°C to 43℃Battery Capacity: 350mAhBattery Life: 21 daysCharging time: Approx 75minSupported App Mi Fitness2.5D cover glass77% screen-to-body ratio1200nits Max brightness with ALS60Hz high refresh rate for smooth viewingHigh quality metal frame with new strapsLinear motor with 20 vibration modes21-day ultra-long battery lifeProfessional Workout Analysis5ATM water resistance  General Features:Weight: 40.4g with strapDimension: 43.3×32.5×10.8mmSensors: Heart rate sensor (with blood oxygen sensor), accelerometer,gyroscope, electronic compass,ambient light sensorSystem requirements: Android 8.0，iOS12 or aboveSatellite Positioning Systems: BeiDou, GPS, GLONASS, Galileo, QZSSIndependent GNSS five-satellite positioningNewly added compass functionMulti-dimensional health management: SpO₂ monitoring |sleep monitoring| stress monitoring| Women’s Health management | Breathing exercises to relieve stress.