Apple’s announcement of watchOS 27 at WWDC 2026 came with an unexpected surprise for many users. The upcoming software update, scheduled for release later this year, will end support for several older Apple Watch models, including the original Apple Watch Ultra that debuted in 2022.

The decision has sparked debate among users, particularly because the first-generation Apple Watch Ultra launched at $799 and remains a relatively modern device by smartwatch standards. Once watchOS 27 arrives, affected watches will no longer receive major feature updates and will instead be limited to essential security patches.

Apple has now provided an official explanation for the move. Speaking to TechRadar, Apple Watch and Health Product Marketing Manager Cait Dooley said the company prioritizes performance and user experience when deciding which devices can support new software releases.

According to Apple, many of the headline features arriving with watchOS 27 require more powerful hardware than older models can provide. This includes new Siri AI capabilities as well as the latest tap gesture features, both of which rely on the processing improvements introduced with newer Apple Watch chipsets.

Apple says these features are designed to work best on the Apple Watch Series 9 and newer models, the Apple Watch Ultra 2 and later versions, and the third-generation Apple Watch SE. As a result, older devices have been left off the compatibility list.

While owners of unsupported watches will miss out on new features, Apple notes that those devices can still be paired with iPhones running the latest software. They will also continue receiving security updates, allowing users to keep using their watches safely even without access to watchOS 27.

The list of devices losing support includes the Apple Watch Series 8 and older models, the original Apple Watch Ultra, and Apple Watch SE models released before the SE 3.

For users affected by the change, Apple’s message is clear: the latest watchOS experience is increasingly tied to newer hardware. Those who want access to upcoming AI-powered features and future software enhancements may eventually need to consider upgrading to a newer Apple Watch model.