How to set up crash detection on your iPhone and Apple Watch
Your phone comes with a number of useful features that we hope you’ll never have to use — and Crash Detection falls into that category. The idea is that movement sensors can detect when you’re driving, and if you come to a sudden and abrupt stop, your phone or watch can then alert emergency services […]
https://www.theverge.com/how-to/617241/iphone-apple-watch-crash-detection-how-to