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What to Look For in a Robot Vacuum Depending on the budget you have, you can get one with or without all the bells and whistles. Consider buying a model with an auto-emptying dock as well as one that can clean various types of flooring. Lower-priced models tend to use basic bump navigation systems that are slow and inefficient. Higher-end models can use sensors to map your home and navigate around furniture and other obstacles. Features Robot vacuums can save you time when cleaning your home. They are especially useful for peopl