Product Information:Screen size: 1.69 inchesInterface: USB 2.0Camera: NoneScreen material: LCDWearing style: wrist strapCompatible system: fully compatibleCommunication function: not supportedMenu language: multiple languagesAdditional features: audio-visual entertainment, step counting, monitoring, social entertainment, smart reminders, remote Selfie, health monitoring, information push, sports tracking, sleep analysisWireless distance "5m (inclusive) -10m (inclusive)Battery capacity "280 mAhOperation mode "touch + buttonScreen resolution: 240*280Wristband material: silicone strapProduct weight: 120 (g)Strap style: classic buckleCompatible platform: ANDROIDStrap size: M/L (suitable for 150-200 mm wrist circumference)Function: Heart rate monitoringColor: blue, redPackage:Smart watch*1