Nintendo Switch has a 6.2" 720p multi-touch screen • Eurogamer.net
Let's start with the Nintendo Switch's screen. It is 6.2" in size, 720p and - for the first time in any Nintendo device - boasts a capacitive multi-touch screen.

(Both 3DS and Wii U featured resistive touchscreens, reliant on pressure and less precise. They were also single-touch only.)

As is standard for capacitive devices such as most modern smartphones, Switch's screen is a 10-point multitouch display, meaning multi-finger gestures are supported.

Why not mention the touchscreen in the trailer, or show users playing with it? Perhaps Nintendo did not want to confuse its messaging of Switch being able to play standard home console games on the go.