Attention: Welcome to my shop! We ship the product from China, the delivery time is 7-14 days! Product structure Product type Smart braceletWristband size 255mm*20mm*2.3mmBody size Diameter 42.5mm*9.5mmWeight 44gDisplay Display size 1.3inchResolution 240*240Battery size 501726Capacity 170mAHMachine material upper cover glassBody Zinc alloy platingStrap TPUHardware parametersType Details DescriptionCPU type Hs6620DHeart rate Normal heart rate wk1070RAM (Random Access Memory) SRAM 128kb SFlash (read only memory) Flash 1MAccelerometer G-sensor 3-axisVibration Motor Cylindrical MotorBluetooth Built-in BT AntennaCharger Interface Power Contactbutton touch single pointAndroid system version 4.4 and aboveApple OS version 8.4 and aboveSoftware functionType Details DescriptionSoftware function Time display SupportStep counting supportCalories supportdistance supportsports mode supportRaise your hand to brighten the screen Supportsleep monitoring supportRunning track supportCall reminder supportmessage reminder supportSedentary reminder supportAlarm reminder supportDo Not Disturb Mode SupportShake to take picturesFind bracelet supportdial switch supportLong press touch supportweather supportQuick refresh supportChinese and English dial supportHourly measurement supportWeChat campaign supportheart rate supportContinuous heart rate Not supportedblood pressure supportblood oxygen supportECG not supportedApple Health SupportHealth Weekly Supportbluetooth name supportlanguage supportAPP name Wearfit2.0Charging method Charging clipOTA upgrade supportWaterproof Waterproof grade IP67