17Apple Watch User Guide
Track important health information with
AppleWatch
Your AppleWatch can help you meet your sleep goals, track important information related
to your heart, log your medications, encourage you to wash your hands, and track your
menstrual cycle.
Prioritize your sleep
With the Sleep app on Apple Watch, you can create a sleep schedule, set a sleep duration
goal, and review your recent sleep history. You can even see estimates of how much time
you spent in REM, Core, or Deep sleep, as well as when you might have woken up. While
you sleep, AppleWatch also tracks metrics like blood oxygen, heart rate, time asleep,
respiratory rate, and on AppleWatch Series8, wrist temperature. To get started, open the
Sleep app on your Apple Watch and follow the onscreen instructions. Then wear your watch
to bed and Apple Watch does the rest.
Get heart health notifications
You can enable notifications from the Heart Rate app on your Apple Watch to alert you
to high or low heart rates, as well as irregular heart rhythms that may be suggestive of
atrial fibrillation (AFib). If you have already been diagnosed with AFib, you can turn on AFib
History to see an estimate of how frequently your heart is in this arrhythmia. You can also
turn on alerts for low cardio fitness.