If you are deciding between these two new machines, highly recommend you walk into an Apple store and literally hold each laptop in your hand — you’ll be amazed that there is nearly no difference in weight, and the MacBook Pro is actually narrower.
And I was a bit of a skeptic on the whole Retina thing, but the high resolution display does in fact makes a huge difference, to the point of making non Retina screens pretty tough to look at. Battery life has a slight edge on the Air, but still solid overall (12 hours for Air VS 9 hours for the MacBook Pro 13″).
Mashable literally just weighed-in with the same conclusion:
The 13-inch rMBP weighs just 3.46 pounds.
While that weight is north of many Ultrabooks, it’s still plenty light (which I acknowledge is an oxymoron). I had no issues with taking it to meetings, throwing it in my bag to take home every night, and flipping it open for some comfy computing on the couch when I got there. The 13-inch MacBook Air, at 2.96 pounds, may be lighter, but its overall footprint is actually larger than the 13-inch Pro’s by about a centimeter in width. The Pro’s thickness is just 0.71 inch, almost the same as the Air at its thickest point (0.69 inch).
Just came to the 13″ rMBP from the other direction: a 15″ rMBP. A full pound lighter, and way more compact. So far so great.
This is wonderful. My biggest gripe with the 15″ rMBP is the battery life. It’s incredibly powerful but I can’t take it anywhere without its plug. The 13″ rMBP sounds like it may be the answer.