The Roomba Combo j7 Plus is iRobot’s first combination robot vacuum and mop. | Image: iRobot

Robot vacuums that can also mop have been around for a while, but most make you remove the mop before they can vacuum your carpets — unless you like slightly damp carpets. iRobot’s newest bot looks to solve this problem with a retractable robot mop arm that can lift itself up and under the vacuum to mop when it’s needed and stow itself up top when it’s not.

The Roomba Combo j7 Plus costs $1,099 and is available to preorder today. It will ship on October 4th, and is only being sold with the auto-emptying Clean Base at launch. The two-in-one vacuum mop uses a new combination of acoustic sensors to detect the different types of flooring in a home and “decide” when to lift its pad to avoid thread counts and when to lower it to clean hard…

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