Operating system: Zepp OS, Intended for: Women's, Men's, Features: Timer, Barometer, Built-in heart rate monitor, Built-in speakers, Calorie counter, Compass, Water resistant, Vibration alarm, SOS, Built-in microphone, Gyroscope/Accelerometer, Touchscreen, Colour screen, Sleep measurement, Pulse Ox-sensor, Stress level, Waterproof, Activity Tracker, Light Sensor, Irregular Rhythm NotificationsRead more