Overview
- The feature works on iPhone 14 or later running iOS 18 or newer and on Apple Watch Ultra 3 with watchOS 26 or later.
- When no cellular or Wi‑Fi signal is available, users are prompted to connect to a satellite from the lock screen or within Messages.
- After connecting, users can send and receive iMessage and SMS, including emoji and Tapback reactions.
- Messages use the same end‑to‑end encryption as over Wi‑Fi or cellular, with on‑device guidance, Dynamic Island signal indicators, and a built‑in demo.
- The capability joins Emergency SOS via satellite and Find My location sharing already available in the country.