Any Input device which transmits spatial information. This is most often in 2D ($\mathbb{R}^2$) (Touchpads, mice, etc), or sometimes in 3D ($\mathbb{R}^3$), VR controllers, Leap motion

See hmms about touchpads in facebook/telegram...

osu! is a good benchmark for the effectiveness of your pointing device. If you are on your PC or laptop, go here: http://www.osu-web.com/ and try arabesque level Easy or Normal, and tell me how you did. I'm curious about people's responses. Trick that could help for some devices: make the browser window really small to not have to move the cursor too much around.

As I guessed, I did really well in my old Dell, but really bad on my new MSI (and probably in 99.9% of all modern laptops) :(