If you want the Roomba Max 715 so you can stop thinking about vacuuming, plan on a short weekly routine anyway. Its dock pulls the dirt out of the robot after every run and seals it in a bag that iRobot rates for up to 90 days. The owner's guide still asks for the rubber brushes, the filter and the dust bin to be cleaned every week.
The Max 715 is iRobot's current vacuum-only Max, sold as the next-generation version of the Max 705 Vac. Inside iRobot's own range, the cheaper choice is the Roomba 105 Vac with an AutoEmpty dock. Its dock carries the same rating, but it has a bristle brush and no obstacle recognition. The robot's figures here come from iRobot's product page and owner's guide, and we have no independent measurement of how either robot cleans.
The guide also says the filter must never be washed, so a worn one goes in the trash.











