SAVE OVER $300: As of July 8, get the Shark AI Ultra robot vacuum for $297.99, down from its usual price of $599 at Amazon. That's a discount of 50% for Prime Day.

With a 4.5 out of 5 star average from more than 23,000 reviews, this vacuum is a best-seller. Right now, it can be found for an amazing 60% off during Prime Day, reducing the price to a whopping $99 from its normal $249. With a discount this steep, there’s a fair possibility Amazon is even making a loss on the flash sale.

Our editors rounded up the best Prime Day robot vacuum deals, including savings of up to 50% on models from iRobot, Shark and Eufy.