Dyson Black Friday deals: Robot vacuums and cordless vacuums are up to $600 off right now

Dyson is holding its Black Friday sale on vacuums and related products. To that end, the Dyson 360 Vis Nav robot vacuum is a whopping $600 off and down to $400 right now. That's $100 less than its previous all-time low and the cheapest we've seen it. <br /> Dyson was pretty late to the robot-vacuum party, but its entry was (and remains) one of the strongest in the category. It doesn't have a lot of bells and whistles like a self-emptying base or mopping capabilities, but it makes up for that by having probably the best suction power of any robovac we've tested. All kinds of debris will fall in its path: dirt, dust, food crumbs, pet hair and more. It also has excellent obstacle avoidance, so you'll rarely — if ever — have to dislodge it from getting stuck [...]