Apple Watch Series 10 may potentially feature a larger screen similar to Apple Watch Ultra, along with a thinner case and new chip for potential AI enhancements. The rumored two-inch display aligns with recent CAD renders, hinting at minimal design changes except for the screen size. While new sensors like a blood pressure monitor and sleep apnea detection face challenges, a cheaper version modeled after the Apple Watch SE with a plastic case is in the works to compete with Samsung's Galaxy Watch FE. This move could lower pricing and reduce weight. Overall, Apple Watch Series 10 promises exciting upgrades for current users, with potential improvements in performance and affordability on the horizon.