Screen size: 1.64 inchesCamera: NoneBody memory: 4GBScreen material: AMOLED color screenWearing style: wrist strapCompatible system: iOS platformCommunication function: supportOperation mode: touch + buttonProduct size: about 46×30×10.7mmScreen resolution: 456*280Wristband material: siliconepacking list: Watch*1, charging base (including charging cable)*1, quick start*1, safety information*1,1.64" AMOLED touch screen95 training modesAnimated virtual coach24/7 heart rate monitorBattery life is 10 daysStress and sleep monitor