11" MacBook Air MJVP2LL/A
If you're looking for optimal portability, and you're willing to lose some power for it, then this MacBook is tough to beat. It comes in at just over two pounds, about half the weight of the 15-inch MacBook Pro, and the smaller screen means the casing on this MacBook is smaller overall. Within this small frame you can pick between an i5 and an i7 dual-core Intel processor, with speeds of either 1.6GHz or 2.2GHz. This one comes with 4GB of RAM, which you an upgrade to 8GB for optimal performance. It has integrated video, with no option to upgrade to a dedicated graphics chip, so this isn't the best pick for video editing or playing games. Much like the other Air model, this comes with 256GB of Flash storage, but you can upgrade that to 512GB. The major distinction between the two Air models is the size of the screen, which also makes this one smaller and lighter than the other.