GoKawiilApple issues watchOS 27.0.1 to fix random restarts on Series 12, Ultra 4
Apple has released watchOS 27.0.1, a software update targeted only at Apple Watch Series 12 and Apple Watch Ultra 4 devices. According to Apple's release notes, the update addresses a bug causing some watches to restart unexpectedly. The issue had been reported by multiple users on Reddit and other forums, who described their new watches restarting several times a day.
GoKawiil's interpretation of the reporting above, not reported fact.
A restart bug on brand-new flagship hardware could dent confidence in Apple's latest Watch lineup just after launch, making a quick, targeted fix important for customer trust. The narrow scope of the update, limited to two specific models, suggests the problem was tied to hardware or firmware changes unique to this generation rather than a broader software issue.
- watchOS 27.0.1 is available only for Apple Watch Series 12 and Ultra 4
- The update fixes unexpected restarts reported by some users
- User complaints on forums preceded the fix, though not all units were affected
Apple Watch Series 12 — If you're following this software update saga, chances are you own or are considering the very watch it applies to. The Series 12 offers Apple's latest health tracking and performance features, and now with watchOS 27.0.1 the restart bug is squashed for a smoother experience.
See Apple Watch Series 12 on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: 9to5mac.com — Chance Miller, 2026-09-23
Published there as: “Apple releases watchOS 27.0.1 to fix Apple Watch Series 12 and Ultra 4 bug”
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