Home Slickdeals Roborock S4 Max Robot Vacuum with Multi-Level Mapping $319.79 AC + Free... Slickdeals Roborock S4 Max Robot Vacuum with Multi-Level Mapping $319.79 AC + Free Shipping By ARCOM - 3 February 2021 85 0 SHARE Facebook Twitter Go to the deal page: Roborock S4 Max Robot Vacuum with Multi-Level Mapping $319.79 AC + Free Shipping