Nice looking unit. I'm going to look seriously at it, instead of a MacBook Air 11, for a travel machine.

Dell's claim of "a 13 inch display in the chassis of an 11 inch notebook" is reasonable:

Dell 13: 304 mm x 200 mm x 9-15 mm

Air 11: 300 mm x 192 mm x 3-17 mm

And the weights are within 100 g of each other.