With watchOS 26, S9/10 watches will be going to normal ILP64 ARM64.

RAM limitations were one reason to use arm64_32, but a bigger reason is that the first watches were only ARMv7 (32-bit) so by sticking with 32-bit pointers, Apple was able to statically recompile all the 3rd party (ARMv7) apps from LLVM bitcode to arm64_32.

https://www.macrumors.com/2025/06/16/watchos-26-moves-apple-...