13" is not 11" As someone who used their 11" for years, it was a workhorse. A slow workhorse, but I still yearn for that size.

This is a 13" 16:9 screen. A little smaller than the current 13.6" 16:10 MacBook Air in display size but not really any more portable. Weight is the same as the 13.6" MacBook Air.

It's a 13" and is ~2.5x as heavy.