As of Oct. 3, you can get the Shark Matrix Self-Emptying Robot Vacuum for just $329 at Walmart. That's a discount of 38% and $170.99 off its normal price of $499.99. The sale is open to all Walmart shoppers, so no Walmart+ needed to take advantage of the deal.

The Shark PowerDetect 2-in-1 Robot Vacuum and Mop with NeverTouch Pro Base is a black circular robot vacuum that’s 13 inches in diameter and has a cleaning path width of 5.69 inches. At 2.7 inches tall, it can fit under most cabinets.

Here's how the Roomba J9+ Combo vs. Shark PowerDetect 2-in-1 compare based on price, design, features and more.

If this sounds familiar, a robot vacuum can save you time and energy, and thanks to Walmart's Shark Days event, you can grab one for much less. As of Oct. 3, the Shark Detect Pro self-emptying robot vacuum is just $480 at Walmart,