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.

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,

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,