iRobot Roomba 205 vs iRobot Roomba 505X

iRobot Roomba 505X has the better all-around case than iRobot Roomba 205 in 2026, starting with rating, obstacle detection, and mopping functionality. Its biggest wins come from rating, obstacle detection, and mopping functionality, and auto mop washing and auto mop drying adds more confidence to the verdict. iRobot Roomba 205 still makes sense if price is your priority, but most buyers should still lean toward iRobot Roomba 505X. That keeps the verdict firmly in favor of iRobot Roomba 505X.