Apple has released watchOS 27.0.1, a focused Apple Watch update that addresses a restart issue affecting Apple Watch Series 12 and Apple Watch Ultra 4. The update is available now through the Watch app on a paired iPhone.
Apple’s software update information is the authoritative place to check the current version and release notes. Apple describes watchOS 27.0.1 as a bug-fix release for the affected newer Apple Watch models.
Small point releases are often important because they target a specific issue without adding a broad set of new features. Owners experiencing unexpected restarts should install the update before trying more disruptive troubleshooting steps such as unpairing or resetting the watch.
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How to install watchOS 27.0.1
Keep the Apple Watch on its charger, ensure it has sufficient battery and open the Watch app on iPhone. Go to My Watch, General and Software Update, then follow the on-screen instructions. The iPhone needs a current compatible iOS version.
If the update does not appear immediately, check that the iPhone and watch are connected and try again later. Apple’s rollout can vary by device and region, but the update should be offered to compatible affected models.
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