Lab – The washing efficiency of the Roborock S7 MaxV Ultra


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While the Roborock S7 MaxV Ultra test is about to be published, we focused on its washing function. Does the device deserve its title of “hybrid robot”, capable of vacuuming and washing floors?

It’s no longer a secret: the Roborock S7 MaxV Ultra has arrived at the editorial office, and it’s quickly become the star of our lab. It must be said that he knows how to get noticed! The futuristic-looking robot comes with its monumental docking station. 49 cm high and 42 cm wide — as much in depth — this base has it all. It empties the collector using a dust bag, fills the robot’s on-board water tank, washes the mop, stores the dirty water after cleaning… In short, it relieves the user of a good number of less fun tasks.

While the robot is sold by Roborock as a hybrid, it still had to be categorized. It then lands in the “robot vacuum cleaners” box of Digital. Unfortunately, the test protocol provided for this family of appliances does not include washing efficiency, although this still occupies an important place in the manufacturer’s communication. Never mind: it takes more to stop our teams, who have therefore decided to put the S7 MaxV Ultra and its mop to the test.

We spilled sugar, oil, lipstick and carbon black on our lab floor, then let these substances dry overnight before running a wash cycle. The next morning, application in hand, we ask the S7 MaxV Ultra to begin its office. Once moistened, the mop begins to vibrate, and the robot begins the washing session: it navigates, zigzags, back and forth on the soiled surface. After a few minutes, he returns to his base: the cleaning is finished… and that’s the tragedy.

The base of the robot and its water and drain trays.  © The Digital

The base of the robot and its water and drain trays. © The Digital

If Roborock brags about the capabilities of his mop “with sonic vibrations”, we are not so excited. Admittedly, lipstick turns out to be the most complicated material to remove – no device achieves this quite. However, the S7 MaxV Ultra barely fades smudges. If we hadn’t witnessed its cleaning journey, we would have doubted the washing at this precise location… The mixture of water and carbon black is not a great success either. The robot mops the floor and creates large streaks of material behind it. As for the oil… What can I say? While most of its competitors succeed in cleaning up this material, the Roborock fails. Its wheels even show large traces of grease. The mop still managed to remove soda stains, the least stubborn of the lot.

If, in terms of washing, the S7 MaxV Ultra kills itself with the task without really fulfilling its duty, is it doing better in terms of suction? To find out, find our complete test online from this Wednesday, February 23.



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