Though most of these are obviously renders, this is apparently an actual product that's in production. South Korean appliance manufacturer Moon makes this Obicuum Water, a striking-looking, modernist power mop.
The unit is turned on by tilting the handle backwards. It also has a range of motion from side to side.
It features a small, washable water tank and two replaceable cleaning pads on the bottom. The water is dispersed as a mist from a nozzle in the front, and a motor oscillates the two cleaning pads.
It's also got a built-in LED light.
Power is provided by a (replaceable, thankfully) lithium-ion battery. To recharge it, you plug the unit into the included dock.
Here's the unit in action (in renders, at least):
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