Agreed. Until the last year or so there was not a single Android OS+Hardware combo that basically had the same full file based encryption capabilities of iOS 4.

Agreed. Until the last year or so there was not a single Android OS+Hardware combo that basically had the same full file based encryption capabilities of iOS 4.0. 4 .... dot .... zero. It took some super small subset of Android to reach the security of iOS 5 years ago. I think (think!) Pixel comes close to having most of the features of Secure Enclave -- but you can hardly wave one of the most recent and expensive Android devices around and say "Android is as secure as iOS"... Odds are almost certain any Android phone a consumer will buy today will have far less platform security than iOS.