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Apple Watch Series 12: Familiar Design, Different Everywhere Else
Apple’s new watches add continuous heart-rate sensing, a faster S11 chip and Siri actions in supported apps, with models starting at $399.
On Wednesday, Apple unveiled the Apple Watch Series 12 and Apple Watch Ultra 4 during its September hardware event, featuring expanded health tracking and enhanced Siri AI capabilities.
CEO John Ternus, who replaced Tim Cook on September 1, brings direct experience overseeing previous Apple Watch development as head of hardware engineering.
The Health Sensing System captures heart rate data every 5 seconds—60 times more frequently than before—while Siri AI-powered Audio Intelligence adds Sound Recognition, "Live Rewind," and Siri Recap note-taking.
Powered by the S11 chip enabling on-device Apple Intelligence, both watches deliver over 2 days of battery life or 45 hours with Max Extended mode; the Series 12 starts at $399 and Ultra 4 at $799, with preorders opening today for September 18 launch.
The Series 12 measures 9.7mm thick as Apple's slimmest smartwatch, while both watches add a Readiness feature analyzing activity and sleep data viewable in the redesigned Health app with Apple Intelligence summaries.
The new watch announced by Apple incorporates the S11 chip, heart measurements every five seconds and up to 50 hours of autonomy in everyday use. It will also add artificial intelligence tools to summarize conversations.