Key Features :Time display, battery icon display, date display, week display.Standard sports function (step, distance, calories) multi-sports mode (walking, running, cycling, skipping, badminton, basketball, football, swimming).Health checkup function: heart rate, blood pressure test, blood oxygen test (can save the last 7 records).Heart rate, blood oxygen, blood pressure, measurement. Heart rate monitoring throughout the day (displayed in bars, highest recorded, lowest heart rate).General Manufacturer Specifications :Waterproof level IP67 Life Waterproof   Working time About 7 days System Requirements android4.4 and above, iOS 8.0 or above, support for Bluetooth 4.0 Sleep time display, screen brightness adjustment, music control, motor vibration switch, history message storage (3) Call, SMS, QQ, WeChat reminder (display content and name). Facebook, Whatsapp, Twitter, Skype, etc. Foreign social software reminders. Alarm clock (three sets of alarm clocks), sedentary reminder. Support lo