watchOS 27: Top Features and Compatible Watches

Wondering whether your Apple Watch will actually run watchOS 27, or whether the upgrade is worth your time?

Apple unveiled watchOS 27 at its WWDC 2026 keynote on June 8, and the update changes how you launch apps, interact with widgets, and track workouts while also dropping support for several older models.

What Are the Top watchOS 27 Features?

watchOS 27 is Apple's 2026 wearable software update, headlined by a redesigned dynamic app grid, a new gesture control, and a broad set of fitness and sleep tracking improvements.

The dynamic app grid surfaces and rearranges five apps based on your context and usage, and you tap the bottom center icon to reach the rest of your apps, according to MacRumors.

That contextual approach means the apps you reach for most should appear without scrolling, which matters because screen space on a watch is limited.

The update also refines Liquid Glass for more uniform refraction and better contrast, which Apple says improves readability across the interface.

The New Tap Gesture and Smart Stack

A new tap gesture lets you select a widget in the Smart Stack by tapping your index finger and thumb together once.

This single-tap action works even when your other hand is occupied, so you can act on a widget without touching the screen.

Apple is expanding Smart Stack suggestions to surface more contextually relevant widgets, and the examples include several distinct cases.

• Birthday reminders for close contacts.
• A parked car location card.
• Sleep alarm adjustments ahead of select holidays.
• Transit card balance checks.

You can now create custom passes for any membership or card that uses a QR code or barcode, such as a library card, using your iPhone.

That pass becomes accessible directly from the Apple Watch's Wallet app or can be pinned to the Smart Stack, and transit cards and IDs will also appear there.

Fitness, Workout, and Sleep Upgrades

Workout Buddy is gaining data-driven motivation features that deliver progress updates for pace, distance, and workout duration based on your fitness history.

Apple is enabling Workout Buddy to function without an iPhone nearby, so you can stay motivated during a workout without a phone in your pocket or hand.

Workout Buddy is also expanding to Spanish, letting Spanish-speaking users receive personalized motivation in their preferred language.

Indoor run and walk distance tracking is getting more accurate, with improved motion algorithms that measure treadmill distance directly from the wrist without a connected iPhone, as reported by MacRumors.

Route maps in the Fitness app are receiving an accuracy improvement that gives you a more precise view of your workout paths after the fact.

Sleep tracking is becoming more accurate as well, though Apple has not yet detailed the specific changes behind the improvement.

The update also fixes step count sync so steps counted in the Health app now sync with the Fitness app directly.

What Else Is New in watchOS 27?

Find My is completely redesigned with a more map-centric layout that consolidates Find Devices, Find People, and Find Items into a single unified view.

A new Call Context feature can proactively surface relevant information from other apps during a phone call to a business.

One example Apple gives is displaying a confirmation code from Mail when you call an airline, which removes the step of digging through your inbox mid-call.

The update also introduces a new Siri AI app and brings under-the-hood gains including faster Music playback startup, faster app extension launches, improved Wi-Fi connectivity, more efficient water detection, and better battery efficiency with suggested optimizations.

Other additions include Guest Key support, the ability to view card balances in the Wallet app, and a redesigned settings interface in the Apple Watch app on iPhone.

Which Apple Watch Models Are Compatible With watchOS 27?

watchOS 27 supports the Apple Watch SE 3, Series 9, Series 10, Series 11, Ultra 2, and Ultra 3.

The Apple Watch Series 9 was initially missing from Apple's official compatibility page, but Apple confirmed to MacRumors that the omission was an error and the device is supported.

That mix-up made sense to question, because both the Series 9 and the Ultra 2 contain the same S9 chip.

watchOS 27 drops support for the Apple Watch Series 6, Series 7, and Series 8, along with the original Ultra and the SE 2.

Per MacRumors, that cut makes watchOS 27 the largest single-year drop in Apple Watch software support to date, so owners of those models will stay on their current OS.

When Can You Install watchOS 27?

The first developer beta of watchOS 27 became available immediately following the June 8 keynote.

A public beta typically follows in July, based on Apple's usual release pattern.

Apple is expected to release the update to all users with a compatible Apple Watch model in September.

If your watch is on the supported list, the practical takeaway is to wait for the stable September release unless you are comfortable running beta software on a daily-driver device.