The LilyGo T-Display P4 is a pocket-sized device with a 4.1 inch display that looks like a smartphone from the front. But turn it sideways and it’s clear that this chunky handheld is more of a dev kit ...

Whether you're a traveling exec, a gamer, or a graphic designer, a portable second monitor can add an extra dimension to your work or play. We've tested most of the major models. Check out our top ...