Satellite connectivity in smartphones is a new technology enabling users to communicate in areas where traditional cellular networks are weak or unavailable. Apple first introduced this feature with the iPhone 14 series in 2022 and made the term popular. After that, recently, Google joined the bandwagon and introduced Satellite Connectivity with its Pixel 9 series devices.
But since this is a relatively new topic, you might wonder, “What exactly is satellite connectivity on smartphones?” This week on MSP Explained, we’ll delve into what satellite connectivity is, the various chips that support it, and more.
What is Satellite Connectivity on Smartphones?
Satellite connectivity allows devices to communicate with satellites orbiting the Earth, providing a direct link to space-based networks rather than relying on ground-based cell towers. This is particularly useful in remote locations like mountains, deserts, or at sea, where regular mobile networks are often unavailable. With satellite connectivity, you can send and receive messages, make calls, and even access emergency services when traditional cellular networks are out of reach.
What are Satellite Phones?
Satellite phones are specialised devices that communicate directly with satellites orbiting the Earth, providing coverage even in areas where no mobile networks exist. These phones have been around for decades and are used primarily by professionals such as rescue teams, military personnel, and explorers who need reliable communication in remote regions.
How Are They Different From Regular Phones?
The main difference between satellite phones and regular smartphones with satellite connectivity lies in functionality. Satellite phones are built exclusively for satellite communication and can handle voice calls and text messaging via satellite. They are often larger and more expensive than regular smartphones.
Smartphones with satellite connectivity, on the other hand, are standard mobile devices that can connect to satellites in emergencies but are still primarily dependent on ground-based cell towers for regular use. Their satellite functionality is typically limited to emergency alerts rather than full-scale satellite communication.
How Does Satellite Connectivity Work on Smartphones?
Satellite connectivity on smartphones works by sending a signal from a device to a satellite, which then relays the signal to a gateway or land-based centre. Here’s the simplified version of how the whole process generally works:
When a user initiates a satellite-based SOS or message, the phone searches for satellites. It may require the user to hold the phone at a certain angle or position for optimal signal strength.
Once connected, the phone transmits a low-bandwidth message, often restricted to text, directly to the satellite.
The satellite relays the message to a ground station and the data is then forwarded to the appropriate emergency services or contacts.
It’s important to note that current satellite connectivity on smartphones doesn’t yet support high-bandwidth tasks like regular calls or web browsing due to the high power requirements and slower transmission speeds of satellite communication.
What are the Pros and Cons of Having Satellite Connectivity on Smartphones?
Pros:
Emergency Communication: The biggest advantage is safety. Even in the most remote areas, satellite connectivity allows users to send an SOS message during emergencies.
Cons:
Limited Functionality: For now, satellite connectivity in smartphones is mostly limited to emergency messaging, and it doesn’t yet support regular phone calls or internet use.
High Cost: Adding satellite functionality can increase the overall cost of the device, and using these services may come with premium fees.
Smartphones with Satellite Connectivity Available
iPhone 14 Series
iPhone 15 Series
iPhone 16 Series
Google Pixel 9
Note: This is only available in the US variant. Unfortunately, this feature is not included in the version released in India.
So, that sums up pretty much everything about satellite connectivity on smartphones. This feature allows users to stay connected in remote areas by directly linking to satellites, providing emergency communication when regular mobile networks are out of reach.
Overall, satellite connectivity on smartphones adds a layer of security for those venturing into areas with no mobile coverage. While it’s currently focused on emergency messaging, it holds promise for future enhancements like voice calls and internet access.
