Bran Amazfi Mode T-Rex(Global Version Bluetooth Versio BT 5. Compatible O Android 5.0 or above , iOS 10.0 or abov Operating Mod Touch Screen+Press Butto APP Nam Zep Special Feature Waterproo 5AT PPG Heart Rate Monito Suppor Blood Pressure Monit Blood Oxygen Monit Sleep Monito Suppor Multi-sport Mode Support (14 Sport modes Call or Message Reminde Suppor Reject Cal Suppor Notificatio Support Facebook,Twitter,Wechat, WhatsApp etc. Alert Typ Vibratio Auto Light-up Scree Suppor Stopwatc Suppor GPS+GLONAS Suppor Other Function Support Pedometer,Alarm,Calender,Sedentary reminder,Camera remote control,Anti-lost Technical Parameter Senso G-sensor, Heart Rate Senso Scree Size:1.3 Inc Type:AMOLE Resolution: 360*360pixel Batter Battery Capacity: 390mA Standby Time: About 66day Using time: Abou 20day Charging Time: Abou 2hour Charging Type: Magnetic chargin Appearance & Detail Ban Material: Silicon Length: about 200m Width: about 22m Weight and Siz Product weight: 58 [bluetooth 5.0]Amazfit T-Rex AMOLED GPS + GLONASS Outdoor Watch 14 Sport Modes Track Weather Forecast Smart Watch Global Versio 1*Amazfit T-Rex Smart Bracelet(Global Version 1*Charging Cabl 1*User Manual (English Version)