The only good screen on 5 inch phones are the ones used by HTC, and even those lose on some metrics. Also, that's one of the reasons they only manage to sell 5 phones per quarter. Look at the other displays available. We were talking about phones. There's no trade offs for the rMBP15", but bigger phones? Oversaturated, pentile, lower brightness levels, etc. Very bad displays, overall, when compared to the iphone.