1.41-inch High-definition Large Screen High color gamut, ultra-narrow frame, ultra-large display screen. Rich and delicate colors, real and vivid pictures ECG Monitoring Smart portable measurement, using ECG sensor chip, accurately collects heart ECG waveforms, helping you to detect abnormal heart rate and sudden risks in time Blood Component Analysis Smart portable measurement, using ECG sensor chip, accurately measures blood components, and understands physical condition in time Blood Sugar Monitoring 24-hour real-time monitoring of blood sugar dynamics, automatically generating blood sugar data every thirty minutes Automatic Sleep Monitoring Using the latest GOODIX chip, combined with RESTFUL sleep technology and sleep scoring system, deep sleep analysis 40 times per second skin pulse monitoring, accuracy increased by 60% Heart Rate Variability Monitoring Using the latest heart rate sensor, combined with exclusive HRV algorithm, to give you professional heart health management advice Key functions: ECG electrocardiogram measurement, bodycomposition analysis, blood composition analysis (uric acid, blood lipids), red light 24-hour blood oxygen, HRV report, 24-hour scientific sleep, fourth-generation blood sugar, and all-day stress monitoringGeneral functions: Step counting, distance, calories, calls, voice assistant, heart rate, blood pressure, body temperature test, MET, breathing training, stopwatch, timer, calculator, time and date settings, mini games, female menstrual tracking, music playback, music control, remote control photo taking, weather display, raising the wrist to light up the screen, searching for mobile phones (need to connect to APP) and other incoming call reminders (caller number/name), information notification reminders, alarm clock reminders, standard reminders, sedentary reminders, heart rate alarm reminders and other dials: 6 default watch faces + 1 watch face market watch face + 1 custom watch face