watchOS 27 Developer Beta 4 - Whats New! @brianminor
watchOS 27 Developer Beta 4 - Whats New!  @brianminor
Uploaded July 2026 | Updated September 2026, 2 weeks ago
Apple has released WatchOS 27 Developer Beta 4 for Apple Watch, and with the public beta 2 likely right around the corner, I'm walking through everything new, improved, and still buggy in this build. In this hands-on WatchOS 27 beta 4 review on the Apple Watch Ultra 3, I cover the standout upgrade this time: Workout Buddy is now independent and finally works without your iPhone nearby. I take it on a real walk to test how the audio prompts and workout tracking hold up when the watch is on its own, plus whether a cellular plan is actually required.

00:00:00 Intro: WatchOS 27 Developer Beta 4
00:00:13 The crown button bug that drives me crazy
00:00:45 Build number & how close to release
00:01:26 Battery life first impressions
00:01:53 Should you install the beta?
00:02:17 Downgrade process update
00:02:50 Workout Buddy now works without your phone
00:04:32 The new Siri: first look
00:06:49 Testing Siri with no phone (airplane mode)
00:08:36 The missing app switcher & closing apps
00:10:03 Battery health check (Ultra 3)
00:10:45 Timer bug tested live
00:12:42 Final verdict & recommendation

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watchOS 27 Developer Beta 4 - Whats New!

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