watchOS 27 Update Rolls Out With Siri AI and Smarter Features
Apple has released the watchOS 27 update, bringing a more capable Siri, a brand-new watch face, and several Smart Stack improvements to compatible Apple Watch models. The software is available now as a free download for the Apple Watch Series 9 and later, the Apple Watch Ultra 2 and later, and the Apple Watch SE 3.
You can install the watchOS 27 update directly from your wrist through the Settings app on the watch. Once installed, it delivers a mix of AI-powered assistance, fitness upgrades, and interface refinements.
Siri AI Takes Center Stage
The biggest addition in the watchOS 27 update is support for Siri AI, a more conversational version of Apple’s assistant. It draws on personal context understanding, app actions, onscreen awareness, and broad world knowledge to help you find information and complete tasks.
A new voice experience offers more expressive, natural-sounding voices. You can also customize expressivity and pace to make Siri feel more personal. These voice features rely on powerful on-device models on paired iPhone Air and iPhone 17 Pro models and later.
There is also a dedicated Siri app. It provides an easy way to revisit an existing conversation or start a new one, and it privately syncs conversations across your Apple products with iCloud.
Siri AI Compatibility
Siri AI in the watchOS 27 update requires an Apple Intelligence-capable iPhone. Supported models include the iPhone 15 Pro models, the iPhone Air, and all iPhone 16, iPhone 17, and iPhone 18 models.
Apple Intelligence Across Apps
The watchOS 27 update extends Apple Intelligence into everyday apps on the watch.
Workout Buddy delivers motivation with new insights and now works without your iPhone nearby when you have a Wi-Fi or cellular connection.
Call Context in the Phone app understands when you are speaking to certain businesses and proactively surfaces relevant information from across your apps, such as a confirmation code or a reservation number.
Cycle Tracking Additions
Cycle deviation notifications that are suggestive of perimenopause can be received by those age 40 and over.
New Watch Face and Smart Stack Improvements
Apple has added the Siri Modular watch face. It features a rectangular complication that mirrors the top widget of the Smart Stack, dynamically updating to show the most relevant widget, plus a Siri complication to quickly invoke Siri.
Smart Stack also gains several upgrades:
A single-handed tap gesture lets you tap your index finger and thumb together once to select a widget, even if your other hand is occupied.
New suggestion widgets appear when most relevant, including a Parked Car location, birthday reminders for a close contact, balance changes on a transit card, and the Noise app after a loud noise notification.
System Improvements in the watchOS 27 Update
Beyond Siri and the Smart Stack, the watchOS 27 update includes a range of system-level changes:
| Feature | What’s New |
|---|---|
| Dynamic app grid | Highlights your most popular and recently used apps |
| Find My | Consolidated into one app showing People, Devices, and Items with a map-centric interface |
| Media playback | Now starts faster |
| Workout app | More accurate distance calculations during treadmill workouts from the first step of every walk or run |
| Fitness app | More accurate route maps after workouts |
| Battery extension notifications | May proactively offer to disable certain features to increase battery life, including gestures, Start Workout reminders, and Raise to Speak |
| Shazam and Music Recognition | Identifies songs offline without an internet connection and delivers results automatically when you are back online |
| Liquid Glass | Refinements improve readability with more uniform refraction and improved contrast |
Should You Install the watchOS 27 Update?
If you own a compatible Apple Watch, the watchOS 27 update is a free download that adds meaningful new capabilities. The Siri AI features are the headline attraction, but the Smart Stack tap gesture, offline Shazam, and fitness accuracy improvements are practical upgrades you may notice every day.
Just remember that Siri AI requires a supported Apple Intelligence iPhone, so check your paired device before expecting the full experience. The update is available now through the Settings app on your watch.
