the resolution on the 13 inch macbook air is pretty good. the macbook rumored to come out in october will have a retina display. honestly, what will she be using it for? I use my air for college and its perfect. I was debating between this and a 15-inch macbook pro, I went with this. Not only because it's cheaper, but is so much lighter and an overall smaller product. Perfect for taking to classes and going around with. The decision is up to you, I'm just telling you from experience.