iRobot announced two new combo vacuum / mop combo robots today. The Roomba Combo j5+ and Combo i5+ provide some of the dual-mode features of the $1,1099 Roomba j7+ but for more affordable prices. However, there are some tradeoffs in selling these models for $799 (j5+) and $549 (i5+), including having to swap out their bins when it’s time to switch between vacuuming and mopping.