The resolution on most smartphones is poor enough that it can simulate beer goggles. Hence, it is possible to think someone is hot based on the picture on your phone, but in real life you wouldn't fuck them with a borrowed dick.
*checks email on phone* Wow, this chick is smokin hot.
*Checks email on PC* Holy Shit?! My goddamned iPhoneGoggles did it again- she's butt ugly!