Apple just announced watchOS 27, the next version of its Apple Watch operating system, introducing support for Siri AI, a redesigned "dynamic" app grid, and improvements to health and fitness tracking. The watchOS 27 update will be available "this fall," according to Apple, though support is notably limited - the new OS will only be available for Apple Watch Series 10 models or newer, including the Ultra 2, Ultra 3, and SE 3. The biggest update coming to supported Apple Watch models is Siri AI -