Roborock S7 - New Brush Design, Will it Scratch Your Floors?

This video talks about the new Roborock S7 with auto-empty bin and its new all rubber brush design with floating brush housing. My concern is that it will scratch floors in the same way, and for the same reasons, that the Roomba i7 and S9 do. I discuss the various elements of brush design, why hybrid brushes exist, why rubber brushes clean better and why they scratch floors.

Видео Roborock S7 - New Brush Design, Will it Scratch Your Floors? канала Mr. Roombato