iRobot Roomba Max 705 vs iRobot Roomba Plus 505

The iRobot Roomba Plus 505 is the more well-rounded choice because it mops as well as vacuums, and it typically costs less. The iRobot Roomba Max 705 is vacuum-only but counters with much stronger suction and a longer runtime, so the better fit depends on whether you need mopping.

Mopping. The Roomba Max 705 has no mopping function at all, no water tank and none of the auto-mop features, while the Roomba Plus 505 vacuums and mops in the same run with a self-washing, self-drying AutoWash dock.

The iRobot Roomba Max 705 vacuums at 13000Pa with a 210-minute battery, both stronger than the Roomba Plus 505's 7000Pa suction and 120-minute battery. That gap is the tradeoff for giving up mopping.

Yes. Both the iRobot Roomba Max 705 and the iRobot Roomba Plus 505 self-empty their dustbin and work with Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant and Matter, so those parts of the comparison are even.

Choose the iRobot Roomba Max 705 if you only need vacuuming and want the strongest suction and longest runtime in this pairing, and mopping is not something you plan to use.

Choose the iRobot Roomba Plus 505 if you want vacuuming and mopping handled together by a self-washing AutoWash dock, and are fine with a shorter runtime and less peak suction than the Max 705.