1.4 inch, 360 x 360 pixel AMOLED touch screen with sphere always activeBuilt in Bluetooth call earphones and microphone, supporting call or answer, synchronizing contacts and call records, supporting SOS emergency callsAltimeterArtificial Intelligence Voice Assistant24-hour heart rate monitoring, blood pressure measurement, blood oxygen measurement, body temperature monitoring, sleep monitoring, respiratory trainingSupports multi-point mode recording of your trajectory, calorie expenditure, distance, and exercise trajectorySelect the user interface menu type.The dial market also allows you to adjust the dial.Other practical functions: information button, stopwatch, Bluetooth music, remote photos, search phone, calendar, time, timer, time and date settings, alarm clock, wrist switch, brightness, vibration intensity, do not disturb mode, password setting, calculatorSupport firmware updates, you can update the software to the latest version of the application