Even with the larger display, Lenovo takes measures to ensure portability on the X390. The most noticeable step is on the bezels around the screen, which are quite small on the left and right ...

This year's ThinkPad X390 replaces last year's X280, so there's no more 12-inch model. By shrinking down the bezels by 50%, Lenovo was able to fit a bigger screen into a similarly-sized footprint.