The watchOS 27 public beta is now available for Apple Watch, giving users an early look at the software update that will be released to everyone this fall. This release is significant because it introduces Siri AI on the wrist, a feature that turns the Apple Watch into a true AI wearable. Alongside that, the update brings a dynamic app grid, a one-handed tap gesture, a more proactive Smart Stack, and several health and fitness enhancements.

How to Install the watchOS 27 Public Beta

Before installing watchOS 27, ensure your paired iPhone is updated to the iOS 27 public beta. Then follow these steps:

1. Go to the Apple Beta Software Program website and sign in with your Apple Account.
2. Accept the program terms and enroll your account.
3. Open the Watch app on your iPhone.
4. Navigate to My Watch → General → Software Update → Beta Updates.
5. Select watchOS 27 Public Beta.
6. Return to Software Update and tap Download and Install when the beta appears.

Your Apple Watch must have at least 50% battery and remain on its charger during the update. Keep the paired iPhone nearby and connected to Wi-Fi. Remember: unlike an iPhone, an Apple Watch cannot be easily restored to an earlier watchOS version. If the beta causes issues, you must wait for a newer build.

Compatible Devices

watchOS 27 supports a shorter list of devices than last year: Apple Watch Series 9, Series 10, Series 11, Ultra 2, Ultra 3, and Apple Watch SE 3. Additionally, you need an iPhone 11 or newer (or iPhone SE 2nd generation or later) running iOS 27.

Siri AI Comes to the Wrist

Siri AI first appeared on Apple Watch in developer beta 3, and now it's available in the public beta. The experience is still rough around the edges, but it is expected to improve over the summer. Siri can now answer broader questions, understand personal context, and take actions inside apps. For instance, you can ask it to find a door code from an email or change an Activity goal.

The dedicated Siri app syncs conversation history privately through iCloud. Start a conversation on your iPhone and continue it on your Apple Watch. You can also pin conversations you expect to revisit. To test it, ask a question on your watch that normally would require reaching for your phone. If it works consistently, watchOS 27 could transform the Apple Watch into a full-fledged AI wearable.

Siri AI requires a compatible watch and a nearby Apple Intelligence-enabled iPhone. The personalization and context understanding are powered by on-device processing and private cloud compute.

Dynamic App Grid and Smarter Smart Stack

Pressing the Digital Crown now opens a new dynamic app grid. The Siri app remains in the center, while recently used and popular apps fill the surrounding positions. This layout adapts to your usage patterns, making frequently accessed apps more accessible.

Smart Stack has become more proactive. It can automatically surface relevant information such as a parked car location, a Siri conversation to continue, or a reminder to adjust your alarm before a holiday. Location-based triggers add even more context; for example, Theater Mode may appear when you are at a concert, and your ID may surface near an airport.

New One-Handed Tap Gesture

Apple has introduced a one-handed tap gesture that completes a useful navigation sequence. Double-tap (by tapping your index finger and thumb together) scrolls through Smart Stack widgets. A single tap selects the highlighted widget. Then, a wrist flick returns you to the watch face. This entire sequence can be performed without touching the display, making it ideal for situations when your other hand is occupied.

Health and Fitness Upgrades

watchOS 27 includes three notable health and fitness upgrades:

• Workout Buddy: Delivers Apple Intelligence coaching without requiring your iPhone. It recognizes longer-term progress in distance, pace, and workout duration. Spanish support is also new.
• Improved Treadmill Accuracy: New machine-learning algorithms improve treadmill distance measurements from the very first step. Step counts in Fitness and Health now sync across devices.
• Cycle Tracking Enhancements: The feature can now notify users age 40 and older when logged patterns may suggest perimenopause. It also adds symptom logging and educational resources.

Additional Features in the Beta

Other notable additions include:

• Unified Find My: A single map-centered app replaces three separate apps. Precision Finding locates a paired iPhone, second-generation AirTag, or AirPods Pro 3.
• Wallet Improvements: Custom passes created on iPhone can now be displayed and pinned in Smart Stack.
• Call Context: Businesses can surface useful details during calls.
• Visual Refinements: Liquid Glass has been refined for stronger contrast, and Music playback is faster.
• Battery Optimization: The system may suggest disabling features you rarely use to extend battery life, such as gestures, Start Workout reminders, or Raise to Speak. You can restore each feature in Settings.
• Apple Watch For Your Kids: Redesigned Screen Time, app-availability schedules, and approved-contact controls.

The public beta will receive additional updates throughout the summer. Apple plans to release the final version this fall. Feedback can be submitted through Feedback Assistant on an enrolled iPhone, iPad, or Mac.

Early Impressions and Analysis

Siri AI is the standout feature in watchOS 27. While the experience in developer beta 3 is still rough, the direction is promising. The challenge for Apple will be to make Siri AI as performant on the watch as it is on the iPhone, and to ensure that the new AI capabilities do not degrade the speed of existing Siri functions. Over the summer, performance optimizations are expected to address these concerns.

Beyond Siri AI, the dynamic app grid takes some getting used to but quickly becomes intuitive. The new single-tap gesture builds on the existing double-tap feature, providing even more ways to interact without touching the screen. However, some users may miss the ability to open Notification Center with a gesture—currently, that still requires swiping down or the classic "nose trick."

The removal of Walkie-Talkie is a notable omission. While it was not widely used, the dedicated feature had its fans. A third-party push-to-talk solution that works across Apple devices could potentially fill the gap. Also, watchOS 27 does not include any new watch faces, and third-party watch faces remain unsupported. Apple typically saves new faces for hardware launches, so more may appear later.

Overall, watchOS 27 is a substantial update that modernizes the Apple Watch experience with AI, improved navigation, and enhanced health tracking. The public beta is a good opportunity for enthusiasts to test the features and provide feedback before the official release this fall.

Source: 9to5Mac News