Roomba’s latest robot vacuum has a robot mop on top

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…