Watch & watchOS
Apple Watch
Apple Watch
Apple Watch Ultra 3
Runs the current release — watchOS 27
Apple lists this model as compatible with watchOS 27. Individual features can still need newer hardware.
watchOS releases it runs
-
watchOS 27
Released Sep 2026 · latest 27.0.1
-
watchOS 26
Released Sep 2025 · latest 26.6
Only releases checked against a source are listed. Osnivo currently tracks watchOS 10 and later.
Other Apple Watch models
At a glance
- Platform
- Watch · watchOS
- Family
- Apple Watch
- Model numbers
- A3281, A3282
Sources for this page
Last verified 8 Oct 2026
- 1 Identify your Apple Watch - Apple Support support.apple.com
- 1 OS - watchOS 27 - Apple apple.com
- 1 Apple Watch models - Apple Support support.apple.com · current guide
- 1 Apple Watch models - Apple Support support.apple.com · guide for version 26