iRobot Roomba 505X vs iRobot Roomba 705X

The iRobot Roomba 505X, on the strength of its longer 180-minute runtime and lower price. The iRobot Roomba 705X answers with stronger suction and a higher owner rating, so the gap is close either way.

Suction and mop design. The iRobot Roomba 705X is rated at 13,000 Pa with a self-cleaning PowerSpin roller mop and automatic detergent dosing, while the iRobot Roomba 505X is rated at 7,000 Pa with DualClean spinning pads and no detergent dosing.

Yes. Both the iRobot Roomba 505X and the iRobot Roomba 705X dock to an AutoWash base that self-empties the bin and washes and heat-dries the mop, letting owners go up to 75 days between manual dustbin emptyings.

It depends on your floors. For thicker carpet or heavy pet hair, the 705X's 13,000 Pa and automatic detergent dosing earn their premium. For mostly hard floors and light carpet, the iRobot Roomba 505X's 7,000 Pa and longer 180-minute runtime cover the same routine for less.

Buyers who want nearly all the 705X's vacuum-and-mop features, including LiDAR mapping and the self-washing AutoWash dock, with a longer runtime and a lower price.

Buyers who want the stronger suction, the self-cleaning roller mop and automatic detergent dispensing, the more thorough mopping setup of the two.