Shark robot vacuums are up to 50 percent off for Prime Day

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, so it's the real deal. The AI Ultra boasts fantastic suction power and the bagless self-emptying base is incredibly handy. There's a simple mobile app that lets users control the vacuum when not at home. This app also displays home maps made by the vacuum that can be edited to create "no-go" zones.

The battery life is decent, at 120 minutes per charge. Like most modern robovacs, it'll head back to the power outlet on its own. During use, we found that the vacuum did a pretty good job at avoiding obstacles and managed to sidestep the many cat toys strewn across the floor.

The only caveat worth mentioning is that this particular model includes a debris canister that needs to be manually emptied every 30 days. There's a version with a larger canister that's also on sale. It's down to $298 from $600, which is also a discount of around 50 percent.

Many other Shark products are also on sale right now. This includes other robovacs, but also standard upright designs.

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