Name: Mibro Lite Dimensions: Diameter 43mm, thickness 9.8mm Strap size: width 20mm, extended length 245mm Weight: 48g (Include strap) Material: Metal + plastic + liquid silica gel Layout: 1.3-inch HD Amoled Full circle color screen Battery life: 8 days for daily mode, 10 days for basic mode Charging port : Magnetic charging port Bluetooth: Bluetooth V5.0 Sensor: Optical Heart Rate Sensor, Spo2 Sensor, Accelerometer Operating temperature: -20 ℃ ~ 45 ℃ Application: Mibro Fit App compatibility : Compatible with Android 5.0 and above, IOS10.0 and above