Apple Watch Series 12 or Ultra 4 With an Older iPhone: Why watchOS 27 Might Not Install Tomorrow

Buying Apple Watch Series 12 or Ultra 4 does not guarantee watchOS 27 will install on it tomorrow. Apple’s watchOS page states the update requires the paired iPhone to already be an iPhone 11 or later, or an iPhone SE (2nd generation or later), running iOS 27, and that condition applies to a brand new watch exactly as it applies to an old one....