I’ve been using white/silver/gold iPhones for many years now. I’ve often considered the black/space grey models but don’t go for it because fingerprints and smudge on the backside is much more visible. My question is if anyone knows of a kind of invisible film you can put on the back which doesn’t show smudge as easily? I have a thin plastic back protector on my iPhone (similar to a screen protector), but looking at it now I do see some slight smudge. However I don’t know if there are other protectors made of a different material which might hide it better?