Apple releases watchOS 27, the newest operating system for Apple Watch, bringing updated features focused on Siri, health tracking, and everyday watch tools. The update is available as a free download through the Settings app on compatible devices.
Across outlets, watchOS 27 is presented as an incremental update rather than a major redesign. MacRumors lists support for “Siri AI,” which adds a more capable, conversational Siri using personal context and onscreen awareness, along with a new Siri Modular watch face and improvements to Smart Stack, including easier single-handed selection. AppleInsider similarly frames the update as bringing the watch experience in line with the broader Apple ecosystem, highlighting smarter Siri and expanded health tracking.
MacRumors further details additional watchOS 27 changes, including workout and fitness refinements, a consolidated Find My experience, faster media playback, and Liquid Glass display improvements. For health, it includes cycle tracking features such as “cycle deviation” notifications that are suggestive of perimenopause for users age 40 and over. Battery life controls and offline music recognition capabilities are also included. Sources agree that availability depends on compatible Apple Watch models and, for Siri AI features, an Apple Intelligence-capable iPhone.