Many users match their portable display with the screen size of their laptop. The sweet spot for use with a laptop, though, and our focus here, is between 12 and 17 inches.

Portable displays run the gamut from personal, business, and general-purpose models to panels for artists and gamers. Even those range quite a bit in size: from 3.5 inches to 22 inches. Many smaller desktop displays can be taken on the road in a pinch, but 'true' portable monitors are those specifically sold as such.