Vape pens are usually vaporizers that come in a slimmer, pen-shape form designed to be easier to handle, use, and conceal while carrying them around. There is not one specific pen shape, it is more of a general term to describe varying vape pens – there are wax pens, dry herb vapes, and oil pens. Vaporizer pens are seen as a rather convenient alternative to having a one hitter or dab rig. Moreover, some vape pens are interchangeable! All vape pens run on batteries and will require a charge to operate instead of a lighter.