Weighted Keyboards buying guides
Weighted keyboards add resistance to each key, so pressing feels closer to a real piano. That helps you learn proper finger strength and control. Hammer action is the closest match, since it uses a small hammer-like part under each key. Lighter semi-weighted keys cost less and are easier to carry. Think about weight too, as heavier boards are harder to move.
We haven't published a Weighted Keyboards guide yet. We only publish a guide once the research behind it is done.