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Tom’s Guide
Tom’s Guide
Technology
John Velasco

How to send satellite messages from your iPhone

Tom Guide
IOS 26 Satellite SOS mode running on iPhone.

First introduced with iOS 18, Emergency SOS via satellite gives iPhone users the ability to send messages via satellite. This expansion of the SOS via satellite feature, first introduced with the iPhone 14, allows users to stay connected even in the most remote locations. The messages via satellite feature seamlessly integrates with iMessage, utilizing Apple's end-to-end encryption to ensure your conversations remain private and secure.

We'll walk you through the process of sending messages via satellite, helping you to stay connected no matter where your adventures take you. It's important to note that for now, this new feature is only available with iPhone 14 and up — including the iPhone 17 Pro and 17 Pro Max running iOS 26.

Let's explore how to harness this cutting-edge technology to keep in touch when you're out of range.

1. Satellite connection notification

When your iPhone detects no cellular or Wi-Fi signal, you will automatically receive a notification about the satellite connection option. Tap on the notification to access your satellite services.

2. Access your satellite services

You will now have access to a variety of satellite services, including Messages, Find My, Roadside Assistance, and Emergency SOS.

Alternatively, you can open the iMessage app, which will display a 'Connect to Satellite' option via the Dynamic Island when no other connectivity is available.

3. Sending your message

Now, your iPhone will guide you through the process of scanning for the nearest satellite and orienting your device correctly.

Once connected, you can use iMessage as you normally would — simply compose your message and send it to your contacts.

What messages are supported?

(Image credit: Tom's Guide / John Velasco)

Satellite messaging in iOS 26 supports two formats: standard SMS and iMessage. However, each functions differently when using satellite connectivity. With iMessage, you can send and receive messages as usual. SMS, on the other hand, has limitations.

While you can send SMS messages to any contact, you can only receive them from pre-designated emergency contacts when connected via satellite. RCS (Rich Communication Services) is not currently compatible with this feature.

What devices are supported?

(Image credit: Future)

As mentioned earlier, there is a hardware limitation tied to the iPhone model you own. To use Messages via satellite, you must use the following iPhone models:

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