Apple Watch Ultra 3 Gets Separate Beta Track For watchOS 27

What You Need to Know
- Apple released watchOS 27 beta 3 exclusively to Apple Watch Ultra 3 devices.
- Siri on Apple Watch requires iPhone 15 Pro or later with Apple Intelligence support.
- WatchOS 27 adds Dynamic app grid, improved Smart Stack Suggestions, and Workout Buddy features.
- Battery life improvements included in update, though Apple has not detailed the changes.
Apple has quietly pushed a third beta of watchOS 27, but only to one device: the Apple Watch Ultra 3. The build arrives more than two weeks after the first beta, and it skips past the second beta that Apple released earlier this week to the rest of its Watch lineup.
The gap matters because it suggests Apple is treating the Ultra 3 as a separate testing track rather than a straightforward catch-up release. Users can install through the Watch app on a paired iPhone using a free developer account, provided the watch is on its charger, connected to Wi-Fi, and sitting at 50 percent battery or above.
What the update actually delivers
The headline feature is Siri on Apple Watch, offering smarter conversations and access to personal information. That capability requires an iPhone 15 Pro or later with Apple Intelligence support, which quietly limits the audience to a subset of users who already own relatively recent hardware on both wrists and in their pockets.
Beyond Siri, the practical day-to-day changes include a Dynamic app grid, improved Smart Stack Suggestions, better Liquid Glass readability, and Workout Buddy support that no longer requires a nearby iPhone. New Find My features also arrive in this build.
The least-discussed item in the release is a battery life improvement through performance changes, though Apple has not specified what those changes involve or what trade-offs, if any, come with them. For a device marketed partly on endurance, the Ultra 3 crowd will be paying close attention to whether those gains hold in real use.
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