Hank that's an interesting question. I have both a 5s and rMini but I haven't ever noticed a difference between the screens. I have never placed them side by side so that's why I've probably never noticed. Is this normal? I'll have to check it out when I get home from work.
If it's not as good as the 5s hopefully Color Profiles will fix it. And if so, thanks in advance for your post! Haha