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What to Look For in a Robot Vacuum Depending on your budget you can choose a robot vacuum that comes with all the bells, whistles, and features. Find one that is able to clean multiple types of floors, and consider purchasing one that has a self-empty dock. Lower-priced models tend to have rudimentary bump navigation systems that can be slow and inefficient. The higher-end models employ sensors to map your home and navigate around obstacles and furniture. Features Robot vacuums