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Robot Vacuums · Head to head

Eufy 11S MAX vs iRobot Roomba Plus 505

Full Robot Vacuums comparison in 2026

Updated September 2026
Data from Amazon and official Eufy and iRobot sites.
2026 verdict
Quieter, thinner and the better reviewed, the Eufy 11S MAX still loses to the iRobot Roomba Plus 505.
A 2019 bounce robot with no Wi-Fi cannot match a 2025 robot vacuum that maps with LiDAR, mops, and keeps an AutoWash dock. The iRobot Roomba Plus 505 brings 7,000 Pa, 180 minutes, 5 GHz Wi-Fi and Matter, including Apple Home and Home Assistant. The Eufy 11S MAX answers with a 72.5 mm body, a quiet 55 dB run, a 600 ml bin and a remote, at 2,000 Pa for about 100 minutes. Buy the Roomba unless you want no app at all.
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FeatureEufy 11S MAXiRobot Roomba Plus 505Winner
Price$169.99$695.00Eufy 11S MAX
Rating4.34.2Eufy 11S MAX
Battery Life100 minutes180 minutesiRobot Roomba Plus 505
ConnectivityNone2.4 GHz WiFi, 5 GHz WiFi, BluetoothiRobot Roomba Plus 505
IntegrationsNoneGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatteriRobot Roomba Plus 505
Navigation TypeRandom (Bounce)Laser (LiDAR)iRobot Roomba Plus 505
Multi-Room MappingNOYESiRobot Roomba Plus 505
No-Go ZonesNOYESiRobot Roomba Plus 505
Suction Power2000Pa7000PaiRobot Roomba Plus 505
Mopping FunctionalityNOYESiRobot Roomba Plus 505
Auto Mop WashingNOYESiRobot Roomba Plus 505
Auto Mop DryingNOYESiRobot Roomba Plus 505

What the differences mean

Mapping versus bouncing

The iRobot Roomba Plus 505 builds a LiDAR map with rooms, no-go zones and a live position. The Eufy 11S MAX bounces and has no map, no zones and no resume after a charge. One can be sent to the kitchen. The other runs until it has covered what it happens to reach.

Mop and the dock

The iRobot Roomba Plus 505 mops, lifts the pads on carpet, and the AutoWash dock empties the bin and washes and dries the pads. The Eufy 11S MAX does none of that. It vacuums into a 600 ml bin you empty by hand, which is large for a robot with no tower.

App, voice and Matter

The Eufy 11S MAX has no Wi-Fi, Bluetooth or other radio, so Alexa, Google Home, Apple Home and Home Assistant have nothing to talk to. The iRobot Roomba Plus 505 has 2.4 GHz and 5 GHz Wi-Fi, a child lock, and Matter, which is how it reaches Apple Home, SmartThings and Home Assistant as well as Alexa and Google Home.

Size, noise and power

The Eufy 11S MAX is the thin one, 72.5 mm tall and about 2.88 kg, rated near 55 dB and 2,000 Pa for about 100 minutes. The iRobot Roomba Plus 505 is 106 mm tall and 4.3 kg, at 7,000 Pa for about 180 minutes. The Eufy also takes longer to charge, about 6 hours against 4.5.

Which one to buy if

Winner
30% OFF
$695.00
$999.99
  • + Battery Life: 180 minutes
  • + Connectivity: 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth
  • + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
  • - Price: $695.00 vs $169.99
  • - Rating: 4.2 vs 4.3

What owners say

These owner groups are not describing the same kind of product. Eufy 11S MAX owners praise how quiet it is, how the thin body slides under beds, and that a remote and onboard schedule are enough, with no account to create. They also say it wanders, cannot fence a room, and that a side-brush motor has failed inside a year for some of them. iRobot Roomba Plus 505 owners praise a fast LiDAR map, pet hair on carpet and hard floors, and a dock that empties the bin and washes and dries the pads. They complain that it runs louder than they expected, especially while the dock cleans itself, and that navigation or a stuck bumper shows up after a few months for a portion of them.

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.

  • Eufy 11S MAX
  • iRobot Roomba Plus 505

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Frequently Asked Questions

Which is better overall: Eufy 11S MAX or iRobot Roomba Plus 505?

The iRobot Roomba Plus 505, unless you specifically want a robot with no app. It maps, mops and self-maintains. The Eufy 11S MAX is quieter, thinner and the better reviewed, but it bounces at 2,000 Pa with no Wi-Fi.

How does the Eufy 11S MAX compare with the iRobot Roomba Plus 505?

They are different generations of robot vacuum. The Eufy 11S MAX, from 2019, is a thin remote-controlled vac with no map and no mop. The iRobot Roomba Plus 505 maps with LiDAR, mops, and uses an AutoWash dock, with Matter and 5 GHz Wi-Fi.

Does the Eufy 11S MAX work with Alexa?

No. The Eufy 11S MAX has no Wi-Fi or other radio, so Alexa, Google Home, Apple Home and Home Assistant cannot reach it. The iRobot Roomba Plus 505 works with all four, plus SmartThings, through Matter and its own radios.

Which robot vacuum is quieter and thinner?

The Eufy 11S MAX, rated around 55 dB and 72.5 mm tall, with a 600 ml bin. The iRobot Roomba Plus 505 is 106 mm tall and its owners say the dock cycle is loud. It is the one with 7,000 Pa and a 180 minute rating.

Who should buy the Eufy 11S MAX?

Someone who wants a simple, quiet robot vacuum for a small hard-floor home, controlled with a remote, and who will empty a 600 ml bin by hand. It does not mop, map or join Wi-Fi.

Who should buy the iRobot Roomba Plus 505?

Homes that want LiDAR rooms, a mop, and a dock that empties, washes and dries, on Alexa, Google Home, Apple Home or Home Assistant. It is the robot vacuum to buy in this pair for almost every mapped home.

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