In just 24 hours of Prime Day, Amazon has seen a whirlwind of deals especially for home tech. If you’re looking for a robot vacuum that also mops and doesn’t break the bank, the search can be tough as most models still hover around $500 or more.

This is one of the best iRobot vacuums you can get. With its $799 price tag, it's prohibitively expensive. However, with this early Prime Day deal, you can save 50% off the regular price, leaving you with a high-end vacuum and mop for just $399.

As of July 3, the iRobot Roomba Plus 405 is on sale for $399.99. This deal saves you $400 on list price, and is the lowest-ever price according to camelcamelcamel. Our robot vacuum expert has hand-picked this deal as one of the best ahead of Prime Day.