The best robot vacuum Black Friday deals for every budget

Black Friday is a great time to pick up big-ticket items while they're deeply discounted, and robot vacuums fit that bill this year. It's not hard to drop hundreds on an autonomous dirt-sucker at any other time of the year, but Black Friday deals have discounted a bunch of our favorite models. Before snagging a deal, think about the type of home you have and how you'll use the machine: do you have carpet or mostly hard flooring? Do you have pets who shed constantly? Do you want a combo vacuum-and-mop machine?