Shark's robot vacuums often get most of the Shark-related attention during Black Friday because they're one of the most-known Roomba alternatives.

Shark AI Ultra robot vacuum with self-emptying base for $300 ($300 off): A version of one of our top picks, this Shark robot vacuum cleans both carpet and hard flooring well, has an easy-to-use app, a self-cleaning brushroll and a bagless self-emptying base that can hold up to 60 days worth of debris before you need to empty it.

Having searched high and low for the very best Cyber Monday robot vacuum deals, the top discount I'd recommend to most people is the iRobot Roomba Combo j7+ Self-Emptying Robot Vacuum, which is $359 at Best Buy and $440 off. That's a saving of over 50% on one of Tom's Guide's all-time favorite robot vacuums.