Apple explains why watchOS 27 drops support for five Apple Watch models over Siri AI demands

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Apple has confirmed that watchOS 27 will not support five older Apple Watch models, including Series 6, 7, 8, SE 2, and the original Ultra. The company cites performance requirements for new Siri AI features as the reason, marking an unprecedented three-year device cutoff in a single update. Affected watches will only receive basic security updates going forward.

Apple Watch Owners Face Unprecedented Device Cutoff

Apple has detailed why five Apple Watch models will not receive watchOS 27, marking the most aggressive device support cutoff in the product line's history. The Apple Watch Series 6, Apple Watch Series 7, Apple Watch Series 8, Apple Watch SE 2, and the original Apple Watch Ultra will miss out on the update and its flagship Siri AI features

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. This decision effectively drops support for older Apple Watch models spanning three years of releases in a single software update, leaving millions of users with devices that will only receive basic security updates going forward.

Speaking to TechRadar, Cait Dooley, Apple Watch and Health Product Marketing Manager, explained that performance requirements drove the cutoff decision. "With every software release across every single one of our platforms, we always want to ensure that you have the best experience, so we make power and performance a priority," Dooley said

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. She noted that AI-driven features in watchOS, including the capabilities of the new Siri AI assistant and the new tap gesture, work best with the processing power found in Apple Watch Series 9 and later, Ultra 2 and later, and SE 3.

Source: MacRumors

Source: MacRumors

Siri AI Positions Apple Watch as Intelligence Co-Partner

David Clark, senior director of watchOS software engineering, revealed that one of watchOS 27's primary goals was to "expand the intelligence story on Apple Watch and make it a true co-partner to Apple Intelligence" . He described the watch as "the most convenient way to interact with Siri" since it remains on the wrist all day and proves useful for quick questions when hands are full. This positions the wearable ecosystem as a critical entry point for Apple's AI ambitions, announced at WWDC.

Clark emphasized creating a singular, consistent Siri experience across devices. "We really wanted to make sure the Siri experience is a singular and consistent experience, whether I decide to ask Siri on my wrist a question, or whether I have my phone in my hand and I decide to interact with Siri there," he explained

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. The vision centers on seamless hands-free interactions where users can start a task on their Apple Watch and continue it on their iPhone.

Practical Use Cases Demonstrate Cross-Device Intelligence

Clark provided a concrete example of how Siri AI will function across Apple's ecosystem. A user could ask Siri on Apple Watch for a recipe's ingredients while grocery shopping with both hands full, then later pull up the same list on their iPhone in an easier-to-read format

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. He described this handoff capability as a "superpower" that's "consistently driven by your data" .

Source: TechRadar

Source: TechRadar

While Apple hasn't confirmed the technical specifics, the company's emphasis on processing power suggests only devices running the S9 and S10 chips can handle the computational demands of Siri AI . Dooley confirmed that older devices can still pair with iPhones running the latest software and will continue to receive security updates, ensuring basic functionality persists .

What This Means for Apple Watch Users

The watchOS 27 developer beta is currently available, with a public beta expected next month ahead of an official fall release

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. For owners of affected devices, this marks a significant shift in Apple's support strategy. Users with Apple Watch Series 6 through 8, SE 2, or the original Ultra face a decision: continue using their current watch with limited functionality or upgrade to access the new Siri AI assistant and other intelligence features. This aggressive cutoff raises questions about the longevity of future Apple Watch purchases and whether AI capabilities will continue to drive hardware obsolescence at an accelerated pace.

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