After completing the steps below, you will successfully set up the emergency contact information on your iPhone. When encountering an emergency, you can quickly view and call these contacts through the lock screen interface.
1. Open settings
Go to your iPhone home screen, find and click the "Settings" icon.
In the settings menu, scroll down and find "Information" and tap to enter.
In the "Information" settings page, find the "Medical Emergency Card" option and turn it on.
Return to the "Settings" main menu, find and tap the "Health" app icon. In the Health app, select the Medical Cards tab and click the Edit button in the upper right corner. On this page, you can add emergency contact information, including name, relationship, phone number and other important information.
Return to the "Settings" main menu, select "Touch ID & Passcode" (or "Face ID & Passcode"), and enter your password for verification. Then find the "Emergency Call" option and turn on "Access Medical Emergency Cards when Locked".