This Robot Vac Mops Your Floors--and Watches Your Feet

I hate mopping, but I hate mopping robots more. And I especially hate robot vacuum-mop combos. During my years reviewing robot vacuums, I can't count how many times I've had to unhook a minuscule water bin off the bottom of a robot, fill it with a thimbleful of water, and watch it laboriously drag a barely moist towel across my kitchen floor. It never seemed worth the effort when you just could grab a Swiffer. My 7-year-old had just shaken sugar off her toast all over the kitchen floor, so once she was off to school, I moved some chairs out of the way and plugged the mopping attachments onto the X1 Omni's bottom.