Apple Watch Series 12 and Ultra 4 expected to debut in September, four major upgrades revealed

The new generation of Apple Watch is expected to debut in September this year. The picture shows the current model. (Photo/Apple)

Apple will hold its 2026 autumn conference on September 10 this year, which will feature the new generation iPhone 18 Pro and the first foldable iPhone. At the same time, it is worth noting that the new Apple Watch Series 12 and Apple Watch Ultra 4 will also be launched simultaneously. Recently, some netizens have unearthed a number of key details that have not yet been made public through the watchOS 27 and iOS 27 beta source code, hinting at the upcoming Apple Watch Series 12 and Apple Watch Ultra 4. There will be four major upgrades.

According to the latest report from foreign media "MacRumors", a new independent App called "Readiness" has appeared in the system code, which is different from the existing "Vitals". In the default arrangement of the home screen, the App is next to "Physical Training". It is speculated that Apple will introduce a more complete physical condition and recovery assessment function to help users measure whether the day is suitable for high-intensity training.

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In addition, the health framework has been expanded. In the future, more details can be recorded for weight training, including individual sets, repetitions, weight used, equipment type, single and bilateral training, and the length of each set of movements, allowing heavy training enthusiasts to accurately track without relying on third-party tools.

Apple Watch Series 12 and Apple Watch Ultra 4 are expected to use a new optical sensing system "Sunstone4p0", which has a lower noise coefficient and supports automatic switching of sensing channels according to the wrist wearing direction. This means that even if the pulse signal is weak, it can provide more accurate heart rate readings.

Finally, the storage specifications tied to the new generation T8320 chip show that the capacity of Apple Watch Series 12 and Apple Watch Ultra 4 is expected to be directly upgraded from the 64GB of the previous generation to 128GB, allowing more storage space for offline music, offline maps and apps.

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