Every iPhone model that can be updated to Apple's iOS 18 (and which ones can't)

Last month, Apple announced a string of artificial intelligence (AI) updates to its operating systems in one of its most jam-packed WWDC keynotes. For the iPhone, Apple unveiled iOS 18, available in its public beta version now, the latest iteration of the smartphone software, with enhanced AI integrations in Siri, generative AI capabilities in Photos and Messages, and even updates to its Health and Calculator apps.

Also: 5 cool things to try in Apple's iOS 18 public beta

Apple removes one or two older iPhone models from its list of supported devices each time it releases a new iOS version, marking the end of the devices' software support cycle. Most of the newest AI features are reserved for the iPhone 15 Pro and newer models, as they require the processing power of an A17 Pro chipset or newer, but iOS 18 will still be available for many older models. Here's the list of supported iPhone models for almost every other benefit of the newest operating system version.