watchOS 27 release notes: Apple's new Apple Watch update

Apple will release watchOS 27 next week, a major software update for Apple Watch that introduces a more conversational Siri with AI features, new watch faces, and system improvements for existing users. The update includes a new Siri experience with personal context and on-device models, plus a dedicated Siri app. It also adds Cycle Tracking notifications for perimenopause, a Siri Modular watch face, a single-handed tap gesture for the Smart Stack, and a consolidated Find My app. Additional enhancements cover faster media playback, more accurate treadmill distance calculations, offline Shazam song identification, and Liquid Glass refinements for better readability. Some Apple Intelligence features will have usage limits.