Specifications:
Bluetooth chip：Nordic 52832;
Screen：IPS 1.3"color circular screen Full-screen Touch of Capacitance Screen
Resolution ratio:240*240；
Battery:300mAh;standby for 30D；
Material:Stainless steel + liquid silicone + glass
Waterproofing grade：5ATM；
Charging method: QI wireless charging

Features:
modes of sports：walk,running，badminton，basketball，football，Badminton, table tennis, climbing
health：heart rate test，measurement，deep sleep measurement
other：locate with the mobile，remote control music，Weather forecast,receive information，phone ，screen always on etc。