Features: Ip67 Waterproof / Bluetooth music / 28nm GPS / Ceramic Watch Frame / Heart Rate / 5 days Standby / Smart Notification / Alipay General Design: Ceramic Watch Frame, exquiste Workmanship, unique and beautiful round design, lightweight and portable. Smooth Touch and Sweat-Resistant: Silk Smooth and soft touch on the surface, extreme comfortable grip feeling, anti-dirt, and anti-scratch. Simple Operation: 1.34 touch display, 320*300pix, 512Mb Ram+4Gb Rom, simple operating system. Perfect view angles, easy control, quick in reaction with high sensitivity. Easy Connection: Bluetooth 4.0. APP for Android 4.4, Ios7.0 or above. Main Functions: Heart Rate and Pedometer: Record heart rate and sport data from time to time; Text and call notification, Alarm, sleep monitoring, etc. Compatibility: for Xiaomi 5 iPhone 6 6S 6 Plus 6S Plus 7 Plus Samsung S6 S7 edge. Long Endurance: 280mAh, low energy consumption, full charge for almost 5 days standby. 28nm GPS to Grasp Sport Data Accurately Equipped with Inner Gps, it can receive satellite GPS signal, record real time track, milestone, altitude, pace frequency, speed. in this way, provide foundation for your sport level analysis and improvements. Check Heart Rate To Conduct Scientific Exercise This watch adopts PPG HR sensor, and works with independent research of HR algorithm. Checking the real time HR alternation to make your exercise more effective and scientific.