Parameters:Type of CPU: NDR51822Heart rate: continuous heart rate WK1069RAM: SRAM 32kbROM: Flash 256kbAcceleration sensor: G-sensor with 3 axesWaterproof: IP68 professionalVibration: motor shrapnel motorbluetooth: built-in FPC antennaCharger’s interface: power supply PUGOPINButton: single touchCharging mode: contact chargingOTA upgrade: supportBattery Capacity: 105mAhMaterial:Body: semi-transparent PCBottom case: semi-transparent PCStrap: TPUFunctions: Pedometer, Sleep monitoring, Call reminder, Dial display, Message reminder, Sedentariness reminder, Alarm reminder, Shake to take photos, Continuous heart rate monitoring, Search for bracelet, Wrist lift screen, Do not disturb mode, Time displayParameter:Size: (L * W * H) about 248mm 24.2mm*11mm/9.76*0.95*0.43inWeight: about 21.2gSize of the display screen: 0.66inResolution: 64 * 48Packing List:1 * Smart bracelet1 * Charging cable1 * Manual,,,,,,,,,,,