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.

Prime Day is nearly as good a time to buy a robot vacuum on sale as Black Friday. For new robot vacuums that debuted at CES 2025, it's the first big sale event of the year — most of them were far too fresh to go on sale for Amazon's Big Spring Sale in March.

Amazon Prime Day 2025 is an extended four-day event this year, lasting from July 8 to July 11. One of our favorite robot vacuums, the Eufy E20, is currently 42% off. We’re seeing very significant discounts of up to 50% off editor-tested and recommended models, saving you $300 or more on top designs.