Overview
- Apple confirmed on Friday that Series 6, Series 7, Series 8, the second‑generation SE, and the original Ultra will not receive watchOS 27 and will be limited to basic security updates.
- watchOS 27 introduces a dedicated Siri AI app, a dynamic app grid, new tap gesture, Workout Buddy improvements, Liquid Glass refinements, a unified Find My app, and cycle‑tracking updates.
- Apple says the new features perform best on devices with the S9/S10‑class silicon found in Series 9 and later, Ultra 2 and later, and SE 3, but it has not published a detailed technical explanation for the cutoff.
- The watch‑based Siri AI also depends on a paired iPhone that supports Apple Intelligence—Apple notes some watch features will require an iPhone 15 Pro or later—and Siri AI will be unavailable in the EU at launch under local rules.
- watchOS 27 is in developer beta now, with a public beta expected in July and a full release in the fall, and the cutoff raises questions about device longevity and upgrade pressure for owners of excluded premium models.