Apple Watch Ultra 4 rumored to double sensors and get new S-class chip
Ahead of a September 9 unveiling, reports suggest Apple Watch Ultra 4 will feature substantially upgraded health sensors, with Digitimes claiming the number of sensor components could double, alongside a new blood pressure-related feature reportedly under FDA review. Analyst Mark Gurman also points to fitness-tracking upgrades and a new, faster S-class chip replacing the S10 used since 2024, though reports conflict on whether the watch will get a major design overhaul.