Starting with iOS 11, and the iPhone 5s (2013), iOS devices have been 64bit instead of 32bit. Apple watches were updated to 64bit in 2016, model: s2. You can still build to 32bit architecture - however it’s basically useless since almost no devices at this point run on it.

Originally published 09/13/2022 https://pittcsc.org/, republished 09/20/2022.