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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. Look into buying a model with an auto-emptying dock as well as one that is able to clean different types of flooring. The lower-cost models typically have basic bump systems that are inefficient and slow. Higher-end models can use sensors to map out your home and navigate around furniture and other obstacles. The following are a few examples