Apple’s 15-inch MacBook Air is similar to its 13-inch counterpart in more than name, with a teardown showing there to be relatively few internal differences between the models.
A disassembled 13-inch MacBook Air and a 15-inch MacBook Air [iFixit/YouTube]The 15-inch MacBook Air is best described as an upscaled 13-inch MacBook Pro, with it adding a few minor tweaks to the preexisting design. A look inside the chassis of the new model demonstrates that the similarities go beyond the surface, with the insides being pretty similar as well.

