Roborock’s popular Q5 vacuums are 40% off for Prime Day.

Save up to $300 on: This Prime Day, Rubrock vacuums are on sale on Amazon at some seriously competitive prices. The Roborock Q5 is currently 40% off at $259.99, while the self-emptying Q5+ is 43% off at $399.99.

Would it really be Amazon Prime Day without some serious savings on robot vacuums? We’ll go ahead and answer our own question by saying, “Hell, no!”

Robot vacuums are some of the biggest stars of Amazon’s Prime Big Deal Days. Still, it’s not uncommon to see top-of-the-line models listed for more than $1,000. That’s why we’ve turned to Rubrock’s popular Q series vacuums: these models are some of the best mid-range robot vacuums, boasting competitive features and suction at affordable prices. The brand’s two standout models — the Q5 and Q5+ — are being listed now through October 11 at hard-to-beat prices.

While Roborock vacuums are almost always on sale to some extent, these prices are much lower than usual. The Q5 is listed for $170 less than its retail price of $429.99. Meanwhile, shoppers can score $300 off the self-discharging Q5+, which normally lists for $699.99. Given that our testers named the Q5+ earlier this year. The best self-emptying vacuums in the worldwe recommend jumping on this deal while the price is still hot.

Whether you choose the Q5 or the Q5+ will depend on your budget and the specific needs of your home. While both models have the same strong suction power and easy app and voice control, there are some key differences – the most important being that the Q5+ will empty its own dust bin. It comes with a self-emptying dock, which can hold up to 2.5L of debris. This equates to about seven weeks of hands-free cleaning time. Meanwhile, the Q5 has a 450mL dust bin that must be emptied by hand every time it’s filled. (If you’re wondering if that’ll be enough for your home, Rubrock equates that size to a 3,230-square-foot job.)

Be sure to grab these deals before they clear out! And for even more savings, check out Mashable’s guide to the best Prime Day deals on self-emptying robot vacuums.