Apple Watch Ultra 4 rumors: sensors, silicon, and a quieter redesign

Apple Watch Ultra 3
Apple’s fall event is set for September 9th, and the Apple Watch Ultra 4 is widely expected to share the stage with the Series 12, the iPhone 18 Pro lineup, and, of course, Apple first foldable iPhone. With only days to go, the rumor picture is clearer on internals than on looks.
The Ultra line does not refresh every year. When it does, buyers tend to want more than a new number on the box. This cycle, most of the credible reporting points to health hardware and a new p