Safety Check was introduced by Apple starting with iOS 16. Safety Check provides a way to stop sharing relationships on the iPhone. If your personal Apple ID has two-factor authentication enabled, you can check whom you're sharing information with and turn off sharing of Health, Home, Shared Calendars, Shared Location and Find My, Shared Notes, and Shared Photos.
Lately there have been reports from theme parks where roller coasters are triggering iPhone Crash Detection to make emergency calls. Of course you can leave your iPhone behind or turn it completely off before riding amusements with high g-forces to avoid this. But there are other ways to disable Crash Detection on the iPhone before getting your thrills.
When it comes to using Emergency SOS via satellite on iPhone, there are some limitations. Currently the service is available only in Canada and the US, including Puerto Rico and the US Virgin Islands. Visitors with compatible iPhones can use Emergency SOS via satellite in these areas.
Apple launched Emergency SOS via satellite after years of development behind the scenes. For Emergency SOS via satellite to work properly, specialized components and software must work in tandem to communicate with satellites in space.
Apple has added Crash Detection to the list of safety features on iPhone and Apple Watch. Crash Detection can tell when a severe car crash occurs and automatically launches Emergency SOS to connect with help.