Turn on Handwashing and Handwashing Reminders
- Open the My Watch app on your iPhone and tap Handwashing.
- Tap Handwashing Timer to have your watch automatically detect when you're washing your hands and start a 20-second timer.
- Tap Handwashing Reminders to have your watch remind you to wash your hands after returning home.
You can also turn these settings on and off on your Apple Watch under Handwashing in the Settings app.
Start the timer
The timer starts when the audio and motion sensor data in your Apple Watch Series 4 and later detect that you're washing your hands. You'll also feel a haptic alert when the timer begins. If you stop washing your hands before the timer ends, your watch will prompt you to keep going. If you're not washing your hands, you can tap to dismiss the timer.