I think you're confused. The sqft is roughly how much they can cover in one go before either the bin is full or the battery is low. You can configure your Roomb

I think you're confused. The sqft is roughly how much they can cover in one go before either the bin is full or the battery is low. You can configure your Roomba to do multiple cleaning jobs in a day, each cleaning certain rooms on that floor. Or just pick up the vac, put it down anywhere in the house, and press the button.