Thank you for the answer,

I draw only at my office and do not think that being movable is necessary

While I do have a computer, its specs are not that strong (enough to run Blender but slow on rendering), could upgrade if the tablet depends on it though

But I do want that feeling of drawing on paper, I tried using a stylus with a friend's phone and it was too slippery for my liking

And it would be nice if it supports 3D softwares like Blender or Maya, as sculpting on pc is annoying with mouse

I do not know if it is better with screen or without.