FUNCTION ASSISTANT Body temperature detection and 30S rapid ECG monitoring with innovative electrode type and strong anti interference. Dynamic heart rate monitoring with wrist type optical sensor, real time heart rate value, and 24 hour heart rate history. Blood oxygen monitoring (SpO2) using pulse wave technology to help keep blood oxygen at normal levels; also measures respiratory rate and blood pressure. Calorie, distance, steps, and sleep monitoring; supports multiple exercise modes. IP67 waterproof design for everyday life use. HEALTH ASSISTANT 24 hour body temperature change curve and daily family health monitoring. Innovative electrode ECG monitoring with strong anti interference and 30S rapid detection. Wrist type optical dynamic heart rate monitoring with real time HR and 24 hour heart rate changes recorded. Pulse wave technology provides precision SpO2 measurement to help maintain normal blood oxygen levels. SPORTS ASSISTANT 3 axis acceleration sensor to effectively filter invalid activities and improve data accuracy. Monitor exercise heart rate, mileage, steps, exercise time, calories, and exercise mode for workouts and training. SMART ASSISTANT Notifications include sedentary reminders, incoming calls, text messages, and APP notification reminders. More than 20 kinds of frequency event reminders, offering timely reminders beyond phone alerts. USB direct plug in charging for faster, more stable, and more convenient power.