Know Before You Buy:Hello, after our testing, currently Mi Band 8 only supports Chinese and English. There may be a firmware update in the future. More languages will be available at that time, but currently only English is available.Product parameterProduct model: M2239B1Body net weight: about 27g, including wrist strapMain size: 48*22.5*10.99mmScreen Size and Type: 1.62-inch AMOLED screenScreen resolution: 192*490Screen brightness: up to 600nit, support automatic brightness adjustmentCover plate material: 2.5D reinforced glass cover plateShell material: PCSensor: Optical heart rate and blood oxygen sensor, six axis motion sensorWaterproof rating 5ATMWireless connection: Bluetooth TM BLE 5.1Vibrating motor: rotor motorBattery capacity: 190mAhBattery type: lithium-ion polymer batteryCharging time: Fast charging is supported, and the charging time is about 1 hourWrist strap Adjustable length: 135-210mmWrist strap material: TPUSupported system: Android 6.0 or ioS12.0 or laterSupport APP: Mi fitSystem language: Chinese, EnglishPacking List Bracelet main body X1 Dedicated charging cable × 1Chinese Manual×1