Complex sentence: It differs from a smartphone in that it has a touch screen, a stylus, a larger screen, a more powerful microprocessor, more memory, etc. In short, it functions more like a computer in it's input/output of information.
Split into simpler sentences: It differs from a smartphone in that it has a touch screen and a stylus. Compared with a smartphone It usually has a larger screen, a more powerful microprocessor, more memory, etc. In short, it functions more like a computer in it's input/output of information.