The cheapest robovacs will only have a dock for charging. Pricier models incorporate self-emptying of the onboard dustbin, and draining/refilling of the onboard water tanks. The very fanciest models offer automatic mop pad cleaning, and detergent dispensing for the mopping fluid. 【Suitable for Pet Owners】: M210-P has powerful 2200pa suction. https://bookmarksusa.com/story19522865/the-ultimate-guide-to-top-3-automatic-vacuum-cleaners