The convertible laptop can transform from laptop to tablet and back again, with most systems featuring a hinge design that allows for rotating the keyboard portion through 360 degrees, out of the way back behind the screen. This type of 2-in-1 is the best choice if you’re planning on using the keyboard a lot, as you’re guaranteed to always have it with you. (Typing the Great American Novel or even an ordinary business report on the hard, flat surface of a virtual onscreen keyboard is an experience you wouldn’t wish on your worst enemy.)