[uvtc]

The "pen display" is the type where it's a monitor with the transparent trackpad overlaid on it. That, I think, is what you want. I tried the other type, where you write on the tablet but you look at the screen elsewhere, and it was not fun.

The Wacom One is a fine choice (its their smallest and least expensive model). Maybe artists would need a larger one, but the Wacom One is, IMO, large enough to take notes on.

Haven't tried an iPad, but that Wacom is a really excellent writing/drawing experience.