Calling the emergency services is one of those features that you hope you never have to use on your iPhone, but knowing how to use it is essential. For many years, the process wasn’t straightforward – you had to bring up passcode entry, then choose emergency, and dial the number of your choice. That changed with an iOS update late last year, with Apple integrating a quick trigger mechanism with the Power button. Interestingly, it was brought to Apple Watch first, where holding down the side button brings up an option to activate the feature. In iOS 11, Apple added a new emergency feature to the iPhone, which is designed to allow you to quickly and discreetly place a call to emergency services. In the United States, SOS dials 911, and in other countries, it works with local emergency response teams.
How to Use Emergency SOS on iPhone
Rapidly pressing the Sleep/ Wake button, between three or five times depending on the setting.