Dirty-water detection was praised as impressive because it triggered extra cleaning behavior after dirty mop washing.
Pros: AI, Smart, App and Automation, Mopping performance
Cons: Docking and Auto-Empty Reliability (Robot), Hair‑Wrap / Tangle Resistance
The dirty-water sensing and remopping features were praised as useful when mop pads came back especially dirty.
Pros: AI, Smart, App and Automation, Overall opinion
Cons: Bin and Bag, Carpet — Medium-Pile Pickup
Dirty-water detection was appreciated when it triggered or could trigger remopping, though one test did not activate it.
Pros: Mopping performance, Obstacle Avoidance (Robot)
Cons: Hair‑Wrap / Tangle Resistance, Bin and Bag
Dirty-water sensing and remopping were viewed as useful, with the Roborock’s one-pass remop behavior considered sufficient.
Pros: Overall opinion, Hair‑Wrap / Tangle Resistance
Cons: Obstacle Avoidance (Robot), Stuck resistance
The dirty-water sensor was viewed as a useful dock feature because it could detect dirty pad water and trigger additional cleaning.
Pros: Mopping performance, Edge and Baseboard Cleaning (Hard Floors)
Cons: Solution / Liquid system
Dirty-water sensing and remopping are helpful when they trigger, but one review found automatic remopping failed on test stains.
Pros: Overall opinion, Corner Cleaning (Robot)
Cons: Obstacle Avoidance (Robot), Price and Value
The dirt-sensing auto response was mixed: some reviewers found it effective, while others found it inaccurate or hard to trigger.
Pros: Overall opinion, Self-cleaning cycle
Cons: Water tank, AI, Smart, App and Automation