NFC Smart Watch Sports combines fashion and functionality in one device. Stay on top of your fitness goals, receive notifications, and monitor your health with ease. Ideal for daily wear and sports activities. Specifications: Wireless：5.0; Screen Size:1.5 inch IPS color screen Resolution：360*360; FLASH memory:128MB Waterproof Level:IP67; Compatible System:Android 4.4 or iOS 9.0 above Sensor:Optical heart rate sensor, 6D acceleration sensor; Standby Time: 7-10days Charging time:About 2H Capacity：300mAh Charging Method: Wireless; Prodoct Features：Pedometer、8 Sport mode、 Real-time heart rate measurement、wireless call、 compass; Operation method:Touch panel+ three function button; Near field communication