3 watchOS 10 disasters and one that’s being fixed

The latest version of watchOS sees some of the biggest changes we’ve seen in any version of watchOS for many years. You can run watchOS 10 on older models of Apple Watch as far back as the Apple Watch Series 4, so unless you’re rocking a really old Apple Watch, you’ll be able to make the upgrade. A lot has been added to watchOS 10, including a brand-new Smart Stack of widgets, new mental health features, and even a whole new gesture if you have an Apple Watch Series 9 or Apple Watch Ultra 2.