Apple released watchOS 27 beta 2 for most Apple Watch models a day after iOS and macOS betas. The update arrives with new icons and UI tweaks, but skips the Apple Watch Ultra 3. Build number 24R5305g replaces the initial 24R5289n, signaling the second developer iteration. It also adds new complication icons and a refreshed lock screen design.

Developers can now test the upcoming OS ahead of its 2026 launch, but Apple advises using spare hardware for the beta because it may contain bugs that could disrupt daily use. Early betas often contain stability issues, and this release is no exception. The delay in rolling out watchOS compared to other platforms remains unexplained, leaving developers to speculate about internal testing cycles. The omission of Ultra 3 suggests hardware-specific issues still need resolution.

For app creators, the beta provides a chance to adapt code to revised APIs and the refreshed watch face assets. Consumers should wait for the public release, as the beta’s rough edges could affect daily use. Apple’s staggered rollout underscores its methodical approach to polishing watchOS before shipping to the broader market. Early adopters who test now will help smooth the final rollout.