Shark robot vacuums are on sale for Prime Day and there are some good deals to be had. For instance, the AI Ultra is on sale for just $280. This is 50 percent off, as the regular price is $550. This model topped our list of the best robot vacuums,

Voted the best overall robot vacuum in our guide, the Shark PowerDetect 2-in-1 offers the best of everything. It intelligently mops and vacuums your floors for up to 30 days. Just set a schedule and the robot returns to its base to empty the dustbin, wash the mop, and refill the tank automatically.

As of July 3, the iRobot Roomba Plus 405 is on sale for $399.99. This deal saves you $400 on list price, and is the lowest-ever price according to camelcamelcamel. Our robot vacuum expert has hand-picked this deal as one of the best ahead of Prime Day.