APPLE WATCH IS the ultimate health and fitness device. Use it to set goals and track the progress of various kinds of workout. Or record your heartbeat and rhythm via the ECG app, monitor blood oxygen levels (no longer available on new Series 9 and Ultra devices), benefit from cardio fitness level estimates, and utilize Fall Detection which will sound an alarm and give the option of making an emergency call.
Apple Watch can also track your menstrual cycle, manage medications, and help with mindfulness
