During a power outage that knocks out mobile networks and Wi-Fi, smartphone users can still stay in touch through satellite messaging. The feature is available on many recent iPhone, Pixel and Samsung devices, and knowing how to activate it can offer peace of mind in an emergency.
The UK government has advised households to prepare for potential long power outages caused by cyber attacks or severe weather. Along with food, water, warmth and battery packs, maintaining contact with others is considered essential. While a portable radio is recommended for news, most people will rely on their smartphones to reach friends and family.
Setting Up Satellite Texting on iPhone
Apple's Messages via satellite works on all devices from iPhone 14 and later, which run iOS 18 or later. Users can send and receive texts, emojis and Tapbacks over iMessage and SMS. The feature requires being outside with a clear view of the sky and horizon, and it is not intended for emergencies – in those cases, users should use Emergency SOS via satellite.
To prepare, open the Settings app, then select Apps, followed by Messages, where the Satellite Connection Demo is available. Users should ensure iMessage is turned on before losing signal, and set up an emergency contact and a Family Sharing group so family members can send messages. When signal is lost, the iPhone alerts the user on the lock screen, offering options to text emergency services, use Roadside Assistance, and share location via Find My via satellite.
Apple notes that messages sent via satellite may take longer to send. In ideal conditions with a direct view of the sky and horizon, a message may take 30 seconds, while light or medium foliage could extend this to over a minute. Heavy foliage or other obstructions may prevent connection altogether.
Using Satellite SOS on Pixel Devices
Pixel devices can connect to emergency services via satellite when there is no Wi-Fi or mobile network. This works on all Pixel models except the Pixel 9a. To use it, dial 999 and select the Satellite SOS option in the dialer, then choose Use Satellite SOS and select the star icon. Users fill out an emergency questionnaire, which also allows them to notify emergency contacts.
On-screen instructions guide users to position the phone correctly with a clear view of the sky. Once connected, the emergency service provider should reply via text within a few minutes. A demo is available under Safety and Emergency in the Settings app, which temporarily disables the mobile network until the experience is exited.
Samsung Galaxy Satellite SOS Feature
Samsung offers Satellite SOS on the Galaxy 26 Series, Galaxy 25 Series, and Galaxy Z Fold and Flip Series. The feature is found in the Safety and Emergency section of the Settings app, where users can try a demo and select which contacts and Google account to share when using it.
When calling emergency services, a green satellite icon or 'Emergency text via Satellite' may appear. Tapping this while off the grid guides users through connecting to a satellite to send critical information, including their location, Medical ID, and answers to a questionnaire.
