Some of the best robot vacuums we've tested are on sale for Prime Day, including savings of up to 50% on top-rated models from iRobot, Shark and Eufy.

The Shark MessMaster is exactly that kind of wet/dry vac, and it’s currently on sale for $80 at Amazon. That’s a whopping 56% discount off its original $180 price, making it an awesome deal on a vacuum designed to take on messes you wouldn't dare touch with your everyday sweeper.

The Shark Pet Cordless Vacuum Cleaner is 50 percent off at Amazon right now. We voted it as one of our top cordless vacuums for pet owners due to its powerful suction and long battery life. Plus, it comes with three attachments.