SwitchBot S10

SwitchBot made its name on smart-home add-ons before building a robot vacuum, and the S10's standout idea reflects that background: instead of a water tank you refill every few weeks, the Water Station connects to your home's plumbing directly, so it tops itself up indefinitely. Paired with a 150ml cleaning-solution tank that lasts about 90 days per fill, it's the closest thing to a truly hands-off mopping setup on the market.

The RevoRoll roller mop pushes down with 10 newtons of pressure and reverses direction rapidly to work at grime, then retracts into the body when it senses carpet so it isn't dragging a wet roller across a rug. The separate self-empty station handles hot-air drying and dust collection for up to 70 days. Installing the plumbed water line is the real commitment here, best suited to someone renovating a laundry or utility closet who wants to set this up once and stop thinking about water tanks entirely.