Going smaller than 24 inches doesn’t save you a ton of money, while all-in-ones larger than 27 inches are rare to nonexistent. Size: When researching all-in-ones, we stuck to the same screen sizes that we recommend in most of our monitor guides: 24 and 27 inches.Screen: An all-in-one is mostly screen, and we applied the same criteria to them as we do when writing our guides to standalone computer monitors.
