This year Apple debuted the ability to send messages via satellite with iOS 18. The advantages are obvious from an emergency perspective as it allows users to connect wherever they might be.

Apple this week provided more details about its upcoming Messages via satellite feature which will arrive with iOS 18 ...

Apple has stressed that satellite messaging shouldn't be used in emergencies and says people should text emergency services using Emergency SOS via satellite.

But Messages via satellite isn't just for emergencies. When you're off-grid, you can communicate with anyone via Messages, they'll see you're communicating via satellite and can respond back.

Using your smartphone with a satellite connection in a cellular dead zone isn't exactly rocket science, but there can be complications.

For Messages via Satellite to function, you'll need to first ensure that your iPhone has been upgraded to iOS 18. To check that, or update to iOS 18, go to Settings > General > Software Update.

The ability to communicate while outside cellular coverage using Messages via satellite is so useful that Adam Engst recommends everyone with an iPhone 14 or later upgrade to iOS 18 for disaster ...

Emergency SOS via satellite: Contact emergency services and let them know you need help. Messages via satellite: Send messages to friends of family to seek support.

Apple included a number of satellite-based features in its latest iPhone models to help users keep contact in an emergency. Here's what they are, and how to use them if you have no signal.