iRobot Roomba 505X vs iRobot Roomba 705X

The iRobot Roomba 705X is the slightly stronger choice, thanks to a 180-minute runtime, a self-cleaning roller mop and detergent dispensing. The iRobot Roomba 505X matches most core features, including the AutoWash dock and LiDAR mapping, at a lower price, so the gap is modest.

Runtime and mop design. The 705X runs 180 minutes and uses a PowerSpin roller mop with automatic detergent dispensing, while the 505X runs 120 minutes and uses DualClean spinning pads without detergent dispensing.

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. If you want the longer 180-minute runtime and detergent-assisted roller mopping for larger or messier spaces, the 705X earns its premium. If your home is smaller and you want the same mapping and dock for less, the 505X is the better value.

Buy the 705X if you want the longest runtime here, a self-cleaning roller mop and automatic detergent dispensing, and you are cleaning a larger home or want the more thorough mopping setup.

Choose the 505X if you want nearly all the 705X's vacuum-and-mop features, including LiDAR mapping and the self-washing AutoWash dock, at a lower price, and 120 minutes of runtime is enough for your home.