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Cell phones have the ability to display critical emergency health information right from your lock screen to emergency workers to give them information about you that could be life saving. This requires a bit of configuration to get that information ready.
How to configure in iOS Devices
Please see the setup article on Apple's website here: https://support.apple.com/guide/iphone/set-up-and-view-your-medical-id-iph08022b192/ios
Video Walkthrough: https://www.youtube.com/watch?app=desktop&v=F3XIkl75Els&ab_channel=AppleSupport
How to configure on Android Devices
Please see the setup documentation from Google's website: https://support.google.com/android/answer/9319337?hl=en#zippy=%2Cuse-the-personal-safety-app