Product information: Screen size: 1.32 Interface: USB 2.0 Wearing method: wristband Compatible system: fully compatible Communication function: support Additional functions: video entertainment, step counting, mobile positioning, monitoring, social entertainment, intelligent reminder, remote control selfie, health monitoring, information push, tracking/alarm, motion tracking, sleep analysis Operation mode: touch + button Product size: 260*46*12 mm Screen resolution: 360*360 Wristband Material: Silicone Strap size: 29-35mm Function: waterproof, taking pictures, step counting, heart rate monitoring, blood pressure measurement, social entertainment, bluetooth call, smart reminder, remote control selfie, sleep monitoring, blood oxygen detection Charging method: Magnetic charging cable Packing list: Watch*1 Manual*1 Charging cable*1