Apple Watch Series 12 and watchOS 27

With WWDC 2026 less than a month away and Apple's fall hardware event on the horizon, attention is turning to what comes next for the Apple Watch. The rumor mill has been quieter than usual for this product line, but a clearer picture is starting to emerge for both the Apple Watch Series 12 and Apple Watch Ultra 4, along with the software that will run on them: watchOS 27.

Here is a breakdown of the most credible reporting so far, what to expect on stage at WWDC, and where the bigger health and design ambitions seem to have landed.

Release timing: a familiar fall cadence

Apple is widely expected to unveil the Apple Watch Series 12 and Apple Watch Ultra 4 in September 2026, alongside the iPhone 18 lineup. A new Apple Watch SE is not in the cards this time. The SE 3 launched just last year, and Apple typically lets that model rest for two or three years between refreshes.

watchOS 27, meanwhile, will get its formal debut at the WWDC 2026 keynote on Monday, June 8. Developers should have access to a beta the same day, with a public beta to follow in July and a wide release alongside the new hardware in September.

Touch ID may finally come to the wrist

The most surprising rumor to surface in recent months is that Touch ID could be making a return tour, this time on the Apple Watch. References found in leaked Apple software code last year point to fingerprint authentication being built into the Apple Watch's side button on both the Series 12 and Ultra 4.

The idea is straightforward: instead of tapping in a passcode to unlock the watch, you would press the side button and your fingerprint would handle it. It would also fit naturally with payments and quick authentication for sensitive apps.

A note of caution is warranted, though. The references in the code are not a guarantee that the feature ships this year, or ever. Two of the most reliable Apple watchers, Bloomberg's Mark Gurman and analyst Ming-Chi Kuo, have not corroborated Touch ID for 2026. There is also a related rumor about a front-facing camera for Face ID style unlocking, and it is unlikely that Apple would ship both biometric methods at once.

A new chip after a year on pause

Last year was an unusual one for Apple Watch internals. The Series 11, Ultra 3, and SE 3 all shipped with the same S10 chip used in the prior generation. The leaked code that hinted at Touch ID also suggests that the Series 12 and Ultra 4 will move to a new processor. Whether Apple brands it the S11 or S12 is still unclear, but a generational performance bump is expected either way, with better efficiency that could help battery life as well.

A faster Neural Engine on the wrist would also lay the groundwork for more on-device Apple Intelligence features, which is exactly where the rest of the rumor cycle is pointing.

A new modular watch face for the rest of the lineup

watchOS 27 is reported to bring new watch faces, and the standout is a variant of the Modular Ultra face that has been exclusive to the Apple Watch Ultra. A simplified version is expected to arrive on the Series models for the first time, with a more open layout, the time at the top, and three complications below. It is a small but meaningful crossover between the Ultra and the standard Apple Watch.

More Apple Intelligence, powered by the iPhone

On watchOS 26, Apple Intelligence on the Apple Watch leans on a paired iPhone 15 Pro or newer for processing. The current feature set includes Workout Buddy, Live Translation in Messages, and Notification Summaries.

When Apple confirmed the WWDC 2026 dates, it specifically promised "AI advancements" across its platforms, and watchOS 27 is almost certain to inherit some of them. The biggest open question is how much of the long awaited, more conversational Siri will reach the wrist. Multiple reports point to a Gemini powered Siri arriving across iOS, iPadOS, watchOS, and tvOS this year, with Google providing some of the underlying model and cloud infrastructure. If that holds, the headline software story for the Apple Watch in 2026 will be a meaningfully smarter Siri rather than a flashy new sensor.

Other watchOS 27 rumors point to smarter workout suggestions, improved sleep analysis, and tighter integration with a revamped Health app that Apple is reportedly working on under the codename Project Mulberry. That Health overhaul, which would bring health, fitness, and medical data into a single AI driven wellness experience, may or may not be ready for the September release window.

Satellite features expand beyond the iPhone

The Apple Watch Ultra 3 was the first Apple Watch with built in satellite connectivity, allowing Emergency SOS, Find My, and Messages via satellite without needing an iPhone nearby. iOS 27 is expected to add up to five new satellite features, and at least two of them are likely to extend to watchOS 27: Apple Maps via satellite and photo support inside Messages via satellite.

There has also been a notable shift on the business side. Amazon last month announced plans to acquire Globalstar, the satellite operator that powers Apple's existing satellite features. As part of that deal, Amazon signed an agreement with Apple to keep providing satellite connectivity for current and future iPhone and Apple Watch features, which gives users continuity even as the underlying ownership changes hands.

Health: the rumor that will not go away

Health is the strategic core of the Apple Watch, and it is also where expectations and reality have been diverging the most. Bloomberg's Mark Gurman has reported that Apple is actively working on a wrist based blood pressure monitor, but that it is unlikely to be ready for the Series 12. The high blood pressure notifications introduced last year analyze long term heart rate trends rather than giving a true reading, and Apple is said to be running into accuracy challenges as it tries to push past that.

Non invasive blood glucose monitoring, which has been rumored for years, appears to be even further out. The accuracy bar there is higher than for almost any other smartwatch metric, and most analysts now expect that to land in a future generation rather than 2026.

There is one tantalizing hardware lead. According to a DigiTimes report, the Series 12 could arrive with a new eight sensor array on the back of the case, arranged in a ring pattern. Even without new headline metrics, a more capable sensor cluster could improve accuracy across the existing suite of measurements: heart rate, blood oxygen, ECG, wrist temperature, and sleep tracking.

Design: the year before the redesign?

Apple Watch redesigns tend to come in waves. The Series 10 in 2024 brought a thinner case and larger display, and Apple does not typically follow that up immediately. Most leakers expect the Series 12 to keep the Series 11's external look largely intact, with the bigger physical changes, possibly including magnetic bands, a glass case, and a microLED display, held back for 2027 or later.

Pricing is expected to hold steady. The Series 12 is widely tipped to start at $399 for the GPS model, matching the Series 11. Storage of 64GB and the familiar 42mm and 46mm sizes in aluminum and titanium are also expected to return.

What to watch for at WWDC

The next major checkpoint is the WWDC 2026 keynote on June 8. That is where watchOS 27 will be unveiled, where the new Siri's role across the Apple ecosystem should become clearer, and where Apple may hint at the health and AI stories it plans to expand on at the September hardware event. Apple's notable shift this year is that CEO Tim Cook will hand the reins to John Ternus on September 1, which makes the June keynote one of the last under Cook's leadership and adds an extra layer of significance to whatever Apple chooses to highlight.

Series 12 and Ultra 4 will follow in September. On current evidence, 2026 looks set to be a transitional year for the Apple Watch: a new chip, a useful but not radical software update, the possibility of Touch ID, and the foundations for a much bigger health and design leap somewhere down the road.