Session vs On-Demand

Session vaporizers heat the whole chamber for a continuous sitting — the bowl is cooking, so you finish it — while on-demand devices heat only during the draw, allowing a single puff today and the rest tomorrow. Conduction hardware trends session; convection enables on-demand. Neither is better; they are different consumption rhythms, and matching the device to yours matters more than any spec. The one financial note: on-demand’s partial-bowl efficiency genuinely stretches flower for light users, which over a year of eighths is not a rounding error. Our hardware reviews name each device’s rhythm up front.