Since its launch, the iPhone has seen many connectivity options added and upgrades. Starting with basic 2G, the iPhone 3G marked the first major step up. 4G and 5G followed, as did the refinements of the Bluetooth and Wi-fi stacks. With the launch of the iPhone 14 , Tim Cook and his team added another option… satellite connectivity.

This is Day 28 of 30 Days of iPhone, a look at the moments that shaped the smartphone era .

The iPhone Reaches To The Sky For Help

The new solution launched for a limited but very specific use case: sending emergency “SOS” calls via satellites in low-Earth orbit. By connecting directly to the infrastructure in the sky, Apple’s iPhone had an off-grid safety function . Previous sky connectivity required bulky hardware with large external antennae. Apple’s engineers developed custom radio components and, as always, tightly integrated the hardware with iOS.

In use, a visual interface guided the users to point directly at one of the receiving satellites, negating the need for a large motorized dish and cumbersome batteries - direct line of sight being much more efficient. With narrow bandwidth, Apple limited the connection to heavily compressed text messages that could handle latency and frequent dropouts. Even then, this was not freeform text, but the results of a “What sort of emergency” questionnaire to reduce the information load.

Moving The iPhone From SOS To SMS And Beyond

Emergency SOS moved personal safety tech away from dedicated units purchased on rolling contracts by the more adventurous, to a baseline of premium smartphones, with the trickle-down to cheaper smartphones available to all.

Apple kept improving the technology , moving from mountain rescue to roadside assistance, then to the two-way text messaging in iOS 18. What started as a last contingency became the expected standard of off-grid consumer connectivity.

This is Day 28 of 30 Days of iPhone. Yesterday, we looked at the Dynamic Island and how it hid the ugly cut-out and notch for Face ID .