GoKawiilApple Watch Ultra 4 and Series 12 quietly double RAM to 4GB
Data from Xcode 27 reveals that Apple's new Watch Ultra 4 and Series 12 both ship with 4GB of RAM, twice the 2GB found in last year's Ultra 3 and Series 11. Apple did not disclose this memory increase in its official announcements, and the discovery came from developer tools rather than Apple's own specs pages.
GoKawiil's interpretation of the reporting above, not reported fact.
Apple rarely publishes RAM figures for its watches, so this jump matters mainly for developers building more demanding apps and for the new S11 chip's ability to support AI features in watchOS 27. Doubling memory alongside the chip upgrade suggests Apple is quietly preparing its wearables for heavier on-device processing without drawing attention to hardware specs it typically downplays.
- Apple Watch Ultra 4 and Series 12 have 4GB of RAM, double the 2GB in prior models
- The upgrade was found via Xcode 27, not disclosed by Apple officially
- More RAM likely supports new S11 chip performance and AI features in watchOS 27
Apple Watch Ultra 2 Titanium with Ocean Band — If the new Ultra 4's hidden RAM bump has you eyeing Apple's rugged flagship line, the Apple Watch Ultra 2 is the readily available titanium option with a bright display, dual-frequency GPS and the burly Ocean Band for water sports. It's the same big-battery, adventure-first design language the Ultra 4 builds on.
See Apple Watch Ultra 2 Titanium with Ocean Band 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 — Ryan Christoffel, 2026-09-10
Published there as: “Apple Watch Ultra 4 and Series 12 have surprise upgrade that wasn’t announced”
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