watchOS 27 beta 3 introduces a dedicated Siri app to the Apple Watch, finally bringing Apple's upgraded AI assistant to the wearable. The new Siri AI, first unveiled at WWDC 2026 and already live on iOS 27 beta, understands natural language and maintains context across devices. Users can now launch the app directly from the Dynamic App Grid on supported models. Conversations started on an iPhone or iPad continue seamlessly on the Apple Watch, creating a unified experience across Apple’s ecosystem.

The update requires an Apple Watch Series 9, Apple Watch Ultra 2, or Apple Watch SE 3 — excluding all earlier models. Apple cites hardware demands for the new AI processing as the reason for the cutoff, limiting access to only the six most recent Apple Watch models.

This move reinforces Apple’s strategy of tying advanced AI features to newer hardware, pushing users toward upgrades. For developers, the integration enables more sophisticated watch-based interactions, but consumers with older devices face exclusion. The lack of backward compatibility signals a shift in Apple’s software support model, where AI performance trumps broad accessibility.