Apple unveiled watchOS 27 during its WWDC keynote, and the first developer beta is now live. Developers can install the update on any iPhone running iOS 27 beta 1, then pair it with an Apple Watch that meets the new hardware requirement. The beta targets Series 10 and newer models for early testing and feature preview.

Installing the beta demands a dedicated test watch, as Apple warns that early releases can bring bugs, slower performance, and increased battery drain. The company recommends using a secondary device rather than a primary watch. Users who try the update will be among the first to see changes such as new health metrics and smoother watch faces.

To join the beta, users must first download iOS 27 beta 1 via the iPhone Settings app, then open the Watch app, navigate to General → Software → Beta Updates, and select watchOS 27. The process mirrors iOS beta installation, but the watch side remains gated to Series 10+ hardware only and test new gesture controls and widget layouts.

Apple’s first betas historically carry instability, so testers should prepare for possible crashes and data loss. Nevertheless, early adopters gain a glimpse of the next generation of watch features before the July public beta release. Those who install now will help shape the final polish that arrives with the full launch for millions of users worldwide.