> The 13 inch version is heavier than a ThinkPad X1 Carbon

And costs ~800 more for 16Gb/512 with a slower CPU and worse battery life.

As someone who spends his life on the road with a laptop, I strongly feel that anything that works for you under 3lbs is the sweet spot. The difference between 2.2 and 2.7lbs is miniscule in the grand scheme of my backpack.