Yeah there are lot of this types of add-ons you can use with Unity that are pretty cool. Some of them are a bit old and people don't use them or forget about them and only focus on VR or AR but you can achieve really awesome stuff with this devices.

Im now checking Leap Motion and its really interesting too!

I use Godot a few times but i don't know if they have this types of features.

If you switch to Unity for trying this kind of stuff let me know and we can share the info! Sometimes its hard to find it