1Your personal healthy assistant - Heart rate test, blood oxygen test and blood pressure monitoring to let you know your health status. 2Large screen display - Time display, step, calories, distance, heart rate, sleep time, on/off display 3IP 67 - Waterproof watch with standard motor function (step, distance, calories) 4Sleep monitoring - Helps you keep track of your sleep time and sleep quality. 5Call notification, information reminder, multi-language push - To be informed immediately and not to miss anything important.