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Messages via satellite free for two years after iPhone activation
With iPhone 14 or later, you can send iMessages or SMS messages via satellite when you’re off the grid with no cellular and Wi-Fi coverage.
When your iPhone detects that you’re outside of cellular and Wi-Fi coverage, it alerts you — on the Lock Screen, you get a prompt that you can send and receive messages via satellite. You won't receive iMessages until your emergency contact or family member returns to the conversation and taps Send via Satellite underneath their message bubble. Satellite connectivity isn’t offered on iPhone models purchased in Armenia, Belarus, China mainland, Hong Kong, Macao, Kazakhstan, and Russia
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