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Robot Vacuums · Head to head

iRobot Roomba Combo 10 Max robot + AutoWash dock vs iRobot Roomba Plus 505

Full Robot Vacuums comparison in 2026

Updated September 2026
Data from Amazon and official iRobot site.
2026 verdict
For a buyer who wants LiDAR mapping instead of a camera that needs the lights on, the iRobot Roomba Plus 505 is the safer pick over the iRobot Roomba Combo 10 Max robot + AutoWash dock.
iRobot Roomba Plus 505
Winner
iRobot Roomba Plus 505
$695.00$999.9930% OFF
Buy on Amazon USACheck price
It carries the notably better owner rating of the two, runs a touch longer per charge, and its AutoWash dock washes and dries the mop pads just like the Combo 10 Max's, without the camera-based navigation that struggles in the dark. The iRobot Roomba Combo 10 Max robot + AutoWash dock answers only with the lower price, and both share the same smart home reach, mopping automation and self-emptying dock. Anyone who has read the Combo 10 Max's own reviews and wants the same automated dock without its reliability reputation should choose the iRobot Roomba Plus 505; a shopper focused purely on the lowest price between two closely matched machines might still consider the Combo 10 Max.
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FeatureiRobot Roomba Combo 10 Max robot + AutoWash dockiRobot Roomba Plus 505Winner
Price$694.95$695.00iRobot Roomba Combo 10 Max robot + AutoWash dock
Rating3.04.2iRobot Roomba Plus 505
Battery Life175 minutes180 minutesiRobot Roomba Plus 505
Navigation TypeCamera (VSLAM)Laser (LiDAR)Different strengths
Warranty1 year1 yearTie
Auto RechargeYESYESTie
Connectivity2.4 GHz WiFi, 5 GHz WiFi, Bluetooth2.4 GHz WiFi, 5 GHz WiFi, BluetoothTie
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterTie
Obstacle DetectionYESYESTie
Cliff DetectionYESYESTie
Multi-Room MappingYESYESTie
No-Go ZonesYESYESTie

What the differences mean

Navigation

The Roomba Plus 505 maps with LiDAR. The Combo 10 Max uses a camera-based VSLAM system that needs the lights on and can struggle in the dark.

Battery life

The Roomba Plus 505 runs 180 minutes per charge against 175 minutes for the Combo 10 Max, a small gap.

Price

The Combo 10 Max is the cheaper of the two, though its own reviews report more reliability issues than the Roomba Plus 505, so the savings come with some risk attached.

Which one to buy if

  • you want mapping that works in a dark room or at night
    iRobot Roomba Plus 505

    The Roomba Plus 505's LiDAR doesn't need the lights on the way the Combo 10 Max's camera does.

  • the reliability complaints of the Combo 10 Max concern you
    iRobot Roomba Plus 505

    The Roomba Plus 505 offers the same AutoWash dock without that reputation.

  • price is the only thing that matters between two very similar machines
    iRobot Roomba Combo 10 Max robot + AutoWash dock

    The Combo 10 Max is typically the cheaper of the two.

What owners say

iRobot Roomba Combo 10 Max robot + AutoWash dock owners who get a good unit praise the AutoWash dock and call the mapping excellent, but the complaint that dominates its reviews is reliability: jobs stopping partway, a camera-based system that needs the lights on and struggles after dark, and a mop pad that can turn damp and musty between runs. iRobot Roomba Plus 505 owners describe a similar AutoWash routine, with the dock washing and drying the mop pads and rarely needing manual attention, and specifically praise how fast and accurate the LiDAR mapping is on the first run, usually inside an hour. Their main complaint is noise, with several calling the self-cleaning cycle louder than expected, and a smaller number report a bumper-stuck error or a navigation hiccup appearing a few months in.

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • iRobot Roomba Combo 10 Max robot + AutoWash dock
  • iRobot Roomba Plus 505

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Frequently Asked Questions

Which is better overall: iRobot Roomba Combo 10 Max robot + AutoWash dock or iRobot Roomba Plus 505?

The iRobot Roomba Plus 505, mainly for LiDAR mapping and a notably better owner rating. The iRobot Roomba Combo 10 Max robot + AutoWash dock wins only on price.

What is the biggest difference between the iRobot Roomba Combo 10 Max and the iRobot Roomba Plus 505?

Navigation. The Combo 10 Max uses a camera-based system that needs the lights on; the Roomba Plus 505 uses LiDAR, which works in the dark.

Do both robots mop and self-empty the same way?

Yes. Both use an AutoWash dock that empties the dustbin and washes and dries the mop pads automatically.

Does the iRobot Roomba Combo 10 Max need the lights on to work?

Its camera-based VSLAM navigation performs best with the lights on and can struggle in the dark. The iRobot Roomba Plus 505 avoids this by using LiDAR instead.

Who should buy the iRobot Roomba Combo 10 Max?

Buyers focused purely on the lowest price who are comfortable with camera-based navigation.

Who should buy the iRobot Roomba Plus 505?

Buyers who want the same vacuum-and-mop automation with LiDAR navigation and a better owner track record.

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