s7 doesn't wet the enitre surface of mop : r/Roborock
Roborock S7 Review « Blog | lesterchan.net
Amazon.com - roborock S7 Robot Vacuum and Mop, 2500PA Suction & Sonic Mopping, Robotic Vacuum Cleaner with Multi-Level Mapping, Mop Floors and Vacuum Carpets in One Clean, Perfect for Pet Hair -