Shark's excellent AI Ultra robot vacuum is half off for Cyber Monday

Robot vacuums can be great helpers around the home, but they're often quite expensive. Thankfully, Cyber Monday deals on these machines have come in clutch, knocking hundreds of dollars off the sticker prices of some of the most high-end machines we've tested. A version of one of our top picks, this Shark AI Ultra robot vacuum, is half off and down to 300. That's just about a record-low price, and this model comes with a self-emptying base so you rarely have to interact with it if you don't want to. As mentioned, the Shark AI Ultra is one of Engadget's favorite robovacs; in fact, it's the model our reviewer thinks most people should buy.