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What to Look For in a Robot Vacuum Based on your budget, you can pick a vacuum that comes with all the bells, whistles and features. You might want to consider buying a model that has a self-emptying dock and one that can clean various kinds of flooring. Models that are priced lower typically include basic bump navigation systems that can be slow and inefficient. The higher-end models employ sensors to map your home and navigate around furniture and obstacles. Features Robot vacuums can s