1、Product Functions: Step counter, heart rate monitor, sleep monitor, APP message. Various sports modes for specific activities can meet your needs all day. View incoming calls and important information on it. 2、All Day Activity Tracking: The smart bracelet will accurately record all day activities, such as steps, distance, calories burned, minutes of activity, and sleep status, not just a pedometer. 3、Heart Rate and Sleep Monitor: Automatically and continuously track real time heart rate and sleep duration, comprehensive analysis of sleep quality data to help you live a healthier life. 4、Built in USB Plug: Use any USB plug and computer to easily charge your smart bracelet, no charging cable and dock are needed. A single charge can provide you with up to 7 days of working time. 5、IP67 Waterproof Design: IP67 waterproof, you can wear the smart bracelet when running and washing your hands in rain, but do not wear it when showering, swimming or diving.