Screen size:1.28-inch round screenResolution:240x240Type:touching Round ScreenLocal MP3 Playback:SupportBT:BT4.2WIFI:Not SupportNFC:Not SupportG-Sensor:SC7A20Heart Rate:TIANYIHEXIN HRS3300Battery Type:Polymer Lithium IonBattery Capacity:300mAhCharging Method:5V <1A Magnetic data cableWaterproof Level:NOT waterproofCharging time:About 100 minutesBattery Life time:Use 5-7 days, standby 20 daysProduct language:English/ChineseProduct size:5.67x5.06x1.6cm/2.23x1.99x0.63 inchPackage size:18x9.6x2.6cm/7.08x3.78x1.02 inchNet weight:52g/0.11 lbGross weight:192g/0.42 lbBluetooth basic parameters:Bluetooth headset chip manufacturer:ZHONGKELANXUNBluetooth headset chip model:AB5376A2Bluetooth:5.0Calls:Take out double tap to ANSWE-R,Dual Headphones: Stereo to listen,Single headphone: single channel to listenAverage power consumption for listening to songs and phone calls:About 10mA（low power version）Battery Capacity:25mAhHeadphone charging mode:Put into the bracelet to chargeCeramic Antenna:SKT321610-PS01-R SENTAIKE 3820Software features:IOS:Lookfitplus、Android：LookfitPedometer, Sleep, Heart Rate, Blood PressureMessage notification, Daily alarm clock, Photo control, Sedentary reminder, Find phone, Find braceletThe Package Include:1 x Smart watch1 x Usb cable1 x Use manual