(Image credit: Apple)

Move over, Apple Watch Series 11; there's a new flagship Apple Watch in town. Apple just announced the Apple Watch Series 12 alongside the Apple Watch Ultra 4 during Cupertino's September 9 "Surprise and Shine" event (we also got the new iPhone 18 series and the iPhone Duo).Boasting a completely redesigned health sensor array, upgraded processor, and tons of new wellness tools, here's everything you need to know about the Apple Watch Series 12.Apple Watch Series 12: Upgrades cheat sheetPrice and release: The Apple Watch Series 12 is available for preorder starting today and will be available on September 18, with a starting price of $399, the same as the Series 11Design: The Series 12 looks similar to the Series 11; available in Space Grey, Black, Light Gold, and Dark Bronze (aluminum case); Pearl White and Night Blue (ceramic case); Polished Gold and Polished Silver (titanium case)Health features: Updated health sensing system; improved heart rate and heart rate variability (HRV) tracking; HRV reflected in Vitals app; new Readiness metric; new Health Age score; redesigned Health app with improved recovery insights and personalized AI health/fitness guidance that updates dynamically; Health app now supports personal health data and lab resultsAI features: Support for Siri AI voice assistant; Live Rewind lets you ‘go back in time’ up to 15 seconds; Sound Recognition can auto-alert users to common sounds like sirens and alarms; Siri Recap takes high-level notes of conversations and generates summariesUnder-the-hood: Upgraded S11 processorBattery life: Up to 24 hours per charge, same as Series 11Last year's Apple Watch Series 11 currently tops our best smartwatch list; will the new Apple Watch Series 12 take its place? Maybe! Here's what's new and exciting about the latest model.Apple Watch Series 12: Price and release