Manage fall detection on Apple Watch (Apple Watch Series 4 and later only)
With fall detection enabled, if Apple Watch Series 4 or later detects a hard fall, it can help connect you to emergency services and send a message to your emergency contacts. If Apple Watch detects that you have been immobile for about a minute, it will make a call to emergency services automatically.
If you entered your age when you set up your Apple Watch or in the Health app and you’re age 55 and over, this feature is turned on automatically. If you’re younger than 55, you can turn on fall detection on Apple Watch Series 4 and later by following these steps:
Open the Apple Watch app on your iPhone.
Tap My Watch, tap Emergency SOS, then turn on fall detection.
Note: If you turn off wrist detection, Apple Watch Series 4 and later won’t automatically make an emergency call even after it has detected a hard impact fall.
For more information, see the Apple Support article Use fall detection with Apple Watch Series 4 and later.