Dimensions48mm x 22.5mm x 10.99mm*Height, width and thickness dimensions exclude the strap and protrusionsWeight: 27g*With in-box strapIn-box Band StrapSize: 135mm–210mmMaterial: TPUDisplay1.62 inch AMOLED Touch DisplayResolution: 192 x 490 pixelsBrightness: up to 600 nits, adjustableCase material: 2.5D reinforced glass caseSensorsHigh precision 6-axis sensor PPG heart rate sensor Ambient light sensorBatteryCharging type: magnetic chargingCharging time: approx. 1 hourTypical use time: ≥ 16 daysCapacity: 190mAhSpecifications5ATM water resistantApp: Mi FitnessBluetooth 5.1 BLECompatibility: supports smartphones with Android 6.0/ IOS 12.0 and abovePackage contentsBand body x1Band strap x1Dedicated charging cable x1User manual x1