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,

As of July 2, the Shark Navigator robot vacuum is on sale for $249.99 at Amazon. This is 44% off its list price of $449.99 and marks its lowest-ever price on Amazon. There have been plenty of early Prime Day deals dropping ahead of Amazon's big summer sale event,

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.