The Shark AI Ultra robot vacuum and mop combo machine is on sale for $400 via Amazon as part of a Black Friday deal. This is a discount of $300, or 43 percent, and is the lowest price we've ever seen for this particular model. This is a well-regarded midrange unit with plenty of functionality, including the ability to both vacuum and mop. This is the best deal we've seen for this combo machine. As a matter of fact, the Shark AI Ultra topped our list of the best robot vacuums in 2023.

Robot vacuums can save you a lot of time when it comes to maintaining your home, even more so when they include a mopping function. Several Roomba models that can both vacuum and mop your floors are on sale right now, including the new j5 devices. The iRobot Roomba j5 Combo is currently available for $649 with free shipping at Wellbots. Be sure to use the code ROOMBAENG150 at checkout. The Roomba j5 Combo has a few advantages over the standard j5 Combo, which is also on sale (we'll get to that in a second).