For me, iOS has always had a general touch responsiveness to the UI that Android has never been able to replicate. It’s hard to describe, but I feel like I make a lot less errors when navigating the UI in iOS. It isn’t faster, but it’s always felt smoother to me. I’m not sure whether it’s iOS or the iPhone hardware.

Having said that, Android is the much better platform overall for the things it allows you to do that iOS doesn’t. It’s highly unlikely that I go back to maining an iPhone unless iOS gets radical changes. Third party app stores, launchers, emulators, etc.