Description: App:ZGFit Chip:RK8762 Key type:2 physical keys + full code encoder Android system:Support Android 5.0 and above Ios system:Apple IOS 9.0 and above Heart rate sensor:BD1662 Bluetooth:Dual mode: BT3.0; BLE5.1 Product process:Zinc alloy+ABS Net weight:45g Screen size:1.91-inch high-definition square screen Screen Resolution:320*386 Screen type:IPS full viewing angle color screen Touch screen material:Glass (G+F) Wristband Material:Silicone strap Watch size:54.4*44.3*13.3 Battery Type:Lithium polymer battery Battery capacity:340mAh Standby time:Normal connection use 3-5 days, standby 20-30 days. (Use depends on individual usage) Charging method:Magnetic charging Charging time:about 3 hours Specifications: Compatible systems:IOS/Android system function:Customized dial, step counting, brightness adjustment, multi sport mode, sleep detection, heart rate, blood pressure, breathing training, information push, remote music, remote photography, real-time weather, mobile phone search (connected to mobile phone), alarm clock, stopwatch, do not disturb mode App supported languages: English, Chinese, Spanish, French, German, Thai, Arabic, Russian, Portuguese, Italian, Poland, Romania watch Watch language: English, Chinese, Spanish, French, German, Thai, Arabic, Russian, Portuguese, Italian, Poland, Romania, Malay, Hebrew Languages supported by the manual:Chinese English Package Included: 1*Smart watch 1*Charger 1*Instuction