Apple: Why doesn't watchOS 27 support multiple models? 2026

Apple has confirmed that the upcoming watchOS 27 will mark the end of full support for five Apple Watch models. These models will not gain access to Siri's new AI features or the rest of the operating system's advanced features.

These are the Apple Watch Series 6, Series 7, Series 8, the second-generation Apple Watch SE and the first Apple Watch Ultra, which from now on will continue to receive only basic security updates. The decision is considered particularly significant, as it marks the first time Apple is withdrawing full support for just three-year-old devices in a single software upgrade.

Artificial intelligence requires more processing power

According to Apple, the main reason behind this change is the increased processing power requirements that watchOS 27 brings. The company explains that new features, such as Siri AI, advanced personalization and new tap gestures, are designed to take full advantage of the latest processors.

For this reason, the new operating system is exclusively supported by Apple Watch Series 9 and newer models, Apple Watch Ultra 2 and the new third-generation Apple Watch SE.

This strategy clearly shows that Apple is entering a new era, where artificial intelligence ceases to be an optional feature and becomes a core element of the user experience.

The Apple Watch as a personal assistant on the wrist
The company describes watchOS 27 as an important step towards turning the Apple Watch into a true "partner" of the Apple Intelligence ecosystem.

The new Siri gains access to more personal data and can offer personalized answers with greater accuracy. At the same time, the experience becomes unified across all Apple devices, allowing users to start an action on the watch and continue it seamlessly on their iPhone, iPad or Mac.

A prime example is the ability to ask Siri for the ingredients of a recipe while shopping at the supermarket and later find the same information organized on their iPhone. Apple considers this kind of continuity of experience one of the biggest innovations of the new platform.

What this means for owners of older models
Although specific Apple Watches will not be upgraded to watchOS 27, the devices are not rendered useless. They will continue to work normally with newer iPhones and will continue to receive security updates.

However, users will gradually lose access to major new features in the Apple ecosystem. This includes not only AI functions, but also future services that will likely rely on more powerful processors and greater machine learning capabilities.

A new upgrade strategy from Apple
Apple's decision also shows that the company is rethinking how it deals with the lifecycle of its wearable devices. Until now, the Apple Watch series has built a reputation for being supported for a long time through constant software updates.

The advent of Generative AI changes the balance. Demands for real-time data processing, intelligent predictions and deeper personalization are forcing companies to set higher technical limits on supported devices.

watchOS 27 is perhaps the first clear indication that the era of AI will accelerate the renewal cycle of wearable devices. For users who want to take full advantage of Apple Intelligence, upgrading to a newer Apple Watch may soon not be an option, but a necessity.

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