A small popup camper is a relatively undersized collapsible residence designed for mobility so that the owners can use it for camping trips or similar needs. The category of popup camper inherently consists of small and light structures, so the phrase "small popup camper" is somewhat redundant.
Campers, as a category, are mobile units that have floors but that are unable to power their own transportation. Most campers are towed by large vehicles such as pickup trucks or RVs, though they may also be hitched to vehicles as small as motorcycles. Popup campers are distinguished by being collapsible. They have flexible walls that allow them to be folded up when not in use.