Amazfit A2166 GTR 4 Smart Watch

Bluetooth calling, Daily alarm, Breathing exercises, GPS navigation, GPS tracking, Calorimeter, Pedometer, Blood oxygenation measurement, Heart rate monitor, Stress measurement, Sleep monitor, Notifications, Weather forecast, Customisable dials, Recovery time, Route back, Smartwatch, Sports modes, Stopwatch, Training analyses, Training functions, Idle warning, VO2 MAX