watchOS 27 developer beta 2 now available – AppleInsider

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Tue Jun 23 2026, 02:49 PM EDT · 1 minute read
New icons on an Apple Watch in watchOS 27
Arriving one day after the rest of the second wave of developer betas, watchOS 27 beta 2 is finally available for most of the compatible Apple Watch lineup.
On Monday, Apple released the second round of developer betas for iOS 27, macOS 27, and the rest of the lineup. That is, except for watchOS 27.
That has changed, as Apple has rolled out the second developer beta of watchOS 27 on Tuesday. The reason behind the delay isn’t known.
This beta is currently not available for the Apple Watch Ultra 3. It does, however, seem to be available for the rest of the lineup.
The build number is 24R5305g, up from the first beta’s 24R5289n.
While AppleInsider and Apple itself usually recommend that people trying out beta software should do so on secondary, spare hardware instead of their mission-critical or daily driver devices, it’s a warning that matters more this time around.
That is because this is Apple’s early developer betas for an operating system that is still actively under development. Therefore, there’s a higher chance of buggy, broken, and potentially harmful elements.
It’s a build intended to help developers learn about the operating system changes before its release later in 2026. It’s not intended to be used by the average user.
When it comes to the WWDC developer betas, unless you have a vested interest in using them, such as app development, don’t install the early betas.
Amber worked at MacNN and Electronista from 2015 until 2017, reviewing software, apps, games, and tech accessories. In 2019, she signed up with AppleInsider, where she covers all things Apple, with a focus on tech rev…
Arriving one day after the rest of the second wave of developer betas, watchOS 27 beta 2 is finally available for most of the compatible Apple Watch lineup.
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