This Shark robot vacuum and mop combo machine is $300 off in an Amazon Black Friday deal

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. As a matter of fact, the Shark AI Ultra topped our list of the best robot vacuums in 2023. We admired its reliable cleaning performance, the intuitive mobile a...