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

Introduced in iOS 18, users can send messages on iPhone using Apple's Messages via satellite.

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

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

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.

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 ...

With Messages via Satellite, iMessages and SMS messages can be sent using a satellite connection, while location information can also be updated in the ‌Find My‌ app using satellite connectivity.

iOS 18 introduces messages via satellite, allowing iPhone users to send texts without cellular or Wi-Fi. Learn how to use this feature anywhere.

The next version of the Apple Watch Ultra could gain the ability to send text messages via a satellite connection, joining the iPhone in providing the off-grid feature to consumers.

Messages via satellite: Ths lets you send texts to Apple and Android devices. Satellite features are included for free for the first two years after you activate your iPhone 14 or later.

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