SAVE $400: As of July 11, the Shark Matrix Plus Robot Vacuum is on sale for $299.99 at Amazon. That's a 57% savings on the list price.

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.

It has 19,000 positive reviews I’ve spotted my Shark Vacuum cleaner in the Prime Day sale, and let me tell you one thing: some days I couldn’t live without it. You know the days you spend the entire 24 hours inside,