watchOS 27 Brings Siri AI to Apple Watch, But Six Models Lose Support After Just 3-4 Years

Reviewed byNidhi Govil

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Apple announced watchOS 27 at WWDC 2026 with AI-powered Siri that finally delivers contextual answers on your wrist. But the update comes with an aggressive compatibility cutoff—dropping Apple Watch Series 6, 7, 8, 9, the original Ultra, and SE 2. That means devices as recent as three years old won't receive further updates, marking a sharp departure from Apple's typical support timeline.

Apple Announces watchOS 27 With Siri AI at Center Stage

Apple unveiled watchOS 27 at WWDC 2026, introducing AI-powered Siri as the centerpiece feature designed to transform how users interact with their Apple Watch. The update, available in beta for developers now with a public beta expected in July and general rollout this fall, brings Siri AI—a revamped virtual assistant powered by Apple Intelligence and generative AI models that performs more like ChatGPT or Claude than its predecessor

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. The new system promises better contextual awareness, natural language support, and the ability to pull information from other apps on the fly, addressing a long-standing frustration where Siri on Apple Watch defaulted to showing web links for nearly every request

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Source: Mashable

Source: Mashable

A dedicated Siri app now brings together all conversations in one place, allowing users to start a conversation on their Apple Watch or iPhone and seamlessly continue across devices

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. Siri AI can search across Mail, Messages, Notes, Reminders, Calendar, and other apps to find information, take actions like playing songs or setting Activity ring goals, and even understand what's currently on your screen

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. This hands-free utility changes how users actually interact with their watch, particularly on a device where screen real estate is limited. The gap between Apple and competitors like Google, which brought Gemini to Wear OS last year, had become stark—ask a Pixel Watch how to make buttermilk and it surfaces ingredients with steps onscreen, while an Apple Watch returned a list of websites

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Aggressive Apple Watch Compatibility Cutoff Leaves Six Models Behind

The most controversial aspect of watchOS 27 is its dramatically restricted device compatibility. The update will only work with Apple Watch Series 9 and newer, Ultra 2 and newer, and SE 3

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. This means Apple is dropping support for Series 6, 7, 8, and 9, the original Apple Watch Ultra, and the second-generation SE—a total of six current models

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. If you bought an Apple Watch before 2024, there's a good chance you're at the end of the update road

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Source: Wccftech

Source: Wccftech

This represents a much more aggressive cutoff than usual. The Series 9 is just three years old, while the first-generation Apple Watch Ultra is only four years old—a device that originally cost $799

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. Traditionally, Apple has ended support for watches after six or so years. Last year's watchOS 26 supported the Series 6 from 2020, providing a stark contrast to this year's approach

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. While some new AI features have legitimate hardware requirements, Apple hasn't traditionally treated that as a reason to cut older watches off entirely—last year, older models still received updates while newer hardware got access to more advanced AI features

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Enhanced Health and Fitness Tracking Expands Across Life Stages

Beyond Siri AI, watchOS 27 introduces meaningful improvements to health monitoring. Cycle Tracking now includes perimenopause and menopause support, identifying patterns that may signal the start of perimenopause through cycle irregularities caused by shifting hormone levels

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. Wearing an Apple Watch overnight unlocks retrospective ovulation estimates based on wrist temperature data, helping users better understand their fertile window

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. Apple is pairing this feature with a new Fitness Plus program, Strong Through Menopause, and a Time to Walk episode featuring actress Busy Philipps

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Workout Buddy, the AI-powered personal trainer introduced in watchOS 26, now operates without an iPhone nearby as long as you have a Bluetooth headset

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. It incorporates additional fitness data including heart rate zones, pace, distance, and workout duration into its coaching nudges

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. After initially launching in English, Workout Buddy now supports Spanish

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. Treadmill workouts gain more accurate distance calculations through new machine learning models

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Dynamic App Grid and Smarter Navigation Reshape User Experience

Source: Lifehacker

Source: Lifehacker

watchOS 27 introduces a redesigned dynamic app grid that appears when pressing the Digital Crown, featuring five Siri-suggested apps based on frequent and recent usage, with the Siri app positioned front and center

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. Previously, users were stuck sorting alphabetically and scrolling through their entire app list

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The Smart Stack receives proactive widget suggestions, including a parked-car reminder from Maps when you leave your vehicle, birthday message prompts for close contacts, and Theater Mode suggestions at movie theaters or concert venues

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. A new gesture system enables one-handed navigation: double-tap your index finger and thumb to scroll the Smart Stack, single-tap to select a widget, and flick your wrist to return to the watch face

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. The Find My app consolidates Find Devices, Find Items, and Find People into a single interface with map-centric navigation

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. Additional improvements include faster music playback, battery optimizations through disabling unused features, and refined Liquid Glass design with more uniform refraction and improved contrast for better readability

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