Apple Watch is finally getting a real chip upgrade next month, ending a three-year stretch where the Series 11, Ultra 3, and SE 3 all shipped with essentially the same silicon as 2023’s Series 9. Both the Apple Watch Series 12 and Apple Watch Ultra 4 will get a long-awaited bump in chips and speed when Apple unveils them at its September event.
That performance freeze has been a genuine sore point among longtime Apple Watch owners. The S10 chip that shipped in last year’s Series 11, Apple Watch Ultra 3, and SE 3 was barely changed from the S9 introduced back in 2023.
Internally, the 2026 models are identified as “Watch8,” spanning three variants: the N237 and N238 (Series 12 GPS and Cellular) and the N240 (Ultra 4). All three are expected to run a new CPU identified as T8320, which corresponds to the rumored S11 chip. The timing lines up with watchOS 27’s Siri AI overhaul, and a more capable processor would help the Watch actually run those features without lag.
Outside of the chip, the changes are expected to be conservative: new color and band options, some health and fitness upgrades, but no case redesign. That means Series 12 and Ultra 4 will carry the same case introduced with Series 10 back in 2024 into its third year on the market. A known Weibo leaker claims Apple is focused on longer battery life for the Series 12, building on the Series 11’s current rating of up to 24 hours per charge, or up to 38 hours in Low Power Mode.
On the health side, Apple launched hypertension notifications in watchOS 26 last year, and the FDA is reportedly reviewing a new hypertension notification feature tied to high blood pressure that will likely debut alongside these models. It has also been claimed that Apple Watch Ultra 4’s sensor component count will double and that “power efficiency will improve significantly”.
Apple isn’t expected to refresh the Watch SE this year, since that model only got updated last year. That leaves Series 12 and Ultra 4 as the sole new Watch hardware at the September event.
The modest scope of this year’s update contrasts with what has been described as a broader reevaluation happening inside Apple’s industrial design team. Apple has reportedly explored screenless Watch-style devices to compete with fitness bands and smart rings, along with new screen types and case sizes, including a round display concept that is unlikely to actually ship. The company has also weighed premium variants above the Ultra and Hermès tiers, plus cheaper options below the SE, alongside a long-term revamp of the Health app pushing wearables toward being more AI-focused. Apple is also said to be continuing work on non-invasive blood sugar detection, with an internal goal of shipping that capability by 2030.
The Watch refresh will land inside Apple’s biggest event of the year, alongside the iPhone 18 Pro, iPhone 18 Pro Max, and Apple’s first foldable iPhone Ultra. It also coincides with a leadership change as Tim Cook steps down as CEO on September 1 to become executive chairman, with John Ternus taking over and leading the September iPhone event. If the event falls on September 8 or 9, pre-orders would typically follow on Friday, September 11, the 25th anniversary of 9/11, so Apple may instead push pre-orders to Saturday, September 12.
