Apple Watch Series 12 improves many of the core components that power watchOS and the device’s health and fitness features, plus unlocks new AI capabilities. Here’s everything new in Apple Watch Series 12 vs Series 11.
Apple Watch Series 12 comes in the same 42mm and 46mm options as before, but with some design and durability updates. In terms of case options, Apple Watch Series 12 debuts a new Dark Bronze aluminum finish and also introduces Ceramic, which is available in Pearl White and Night Blue. Aluminum models of Series 12 add Ceramic Shield 2 for tougher, more durable glass than what comparable Series 11 models had. There’s a new, more powerful S11 chip in the Apple Watch Series 12, and it’s the first notable performance upgrade since 2023’s S9. Apple Watch Series 12 also upgrades the memory of the Series 11, offering 4GB of RAM—double the 2GB from last year. But Apple has a variety of software-related updates that require Apple Watch Series 12 or Ultra 4.
Additionally, there are minor size tweaks with the latest models: The screen size remains the same, but the case being slightly larger results in bigger bezels . S11 enables new health and AI features that are exclusive to the latest models, as detailed below. Apple doesn’t say what impact it will have on other everyday tasks, but hopefully there’s a noticeable boost there too. In real-world terms, here’s what’s changed and the benefits it brings per Apple : It’s not often that new Apple Watch hardware comes with exclusive software features.
With Apple Watch Series 12, Apple is introducing a new “Health Sensing System” that essentially represents an overhaul of the internal sensing components.
Some features will be available at launch while others arrive in a software update in late 2026. New features include : Joining AI features is a new Readiness app powered by Series 12’s overhauled health sensors. Apple says : Apple Watch Series 12 introduces readiness, a new feature that analyzes a user’s recent activity, training load, vitals, and sleep score to offer insight into their capacity for the day ahead. Readiness provides a single 0-10 score with a clear, actionable recommendation: Recover, Pace Yourself, Ready, or Go For It. As mentioned above, Series 12 also adds new watch face complications for tracking your steps and heart rate. Apple Watch Series 12 supports faster charging than Series 11, reducing the amount of time you have to go without wearing it. Per Apple : Additionally, while overall quoted battery life is still 24 hours this year, you can now get up to 10 hours of battery during an outdoor workout. That’s 25 percent more than Series 11 supported.
This helps a user decide how to take on their day, whether they’re headed into a workday or tackling their training plan.
Audio Intelligence is what Apple calls a “brand-new class of Apple Intelligence features” powered by S11. There’s one more small change: Apple’s website says that Series 12 features “Precision L1 GPS.”
By contrast, Apple Watch Series 11 only features “GPS. Adopting the L1 frequency band should enable Apple Watch Series 12 to deliver better GPS precision than before. Apple Watch Series 12 is now available to pre-order at $399 . It ships Friday, September 18. Are you upgrading to Apple Watch Series 12? Let us know in the comments. * Buy Apple Watch with 15% discount from Apple refurbished
