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Robot Vacuums · Head to head

Dreame D30 Ultra vs iRobot Roomba Plus 505

Full Robot Vacuums comparison in 2026

Updated October 2026
Data from Amazon and official Dreame and iRobot sites.
2026 verdict
Suction is the widest gap here, and it puts the Dreame D30 Ultra ahead of the iRobot Roomba Plus 505 as the stronger robot vacuum and mop.
Dreame D30 Ultra
Winner
Dreame D30 Ultra
$427.29$539.9921% OFFPrime exclusive deal

Last recorded price

Buy on Amazon USA
The Dreame D30 Ultra is rated at 25000 Pa against 7000 Pa, runs 230 minutes against 180 and carries a 3 year warranty against 1 year. The iRobot Roomba Plus 505 is the better connected robot: it adds 5 GHz Wi-Fi, Apple Home, SmartThings and Matter, which the Dreame does not list, on top of Alexa, Google Home and Home Assistant. Both use LiDAR mapping with no-go zones and dock that empties the bin and washes and dries the mop. Buy the Dreame D30 Ultra for pet hair, carpet and large floors, and the iRobot Roomba Plus 505 for an Apple Home or Matter household that values the smarter connectivity.
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FeatureDreame D30 UltraiRobot Roomba Plus 505Winner
Price$427.29$682.00Dreame D30 Ultra
Rating4.14.2iRobot Roomba Plus 505
Warranty3 years1 yearDreame D30 Ultra
Battery Life230 minutes180 minutesDreame D30 Ultra
Connectivity2.4 GHz WiFi2.4 GHz WiFi, 5 GHz WiFi, BluetoothiRobot Roomba Plus 505
IntegrationsGoogle Home, Alexa, Home AssistantGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatteriRobot Roomba Plus 505
Suction Power25000Pa7000PaDreame D30 Ultra
Auto RechargeYESYESTie
Navigation TypeLaser (LiDAR)Laser (LiDAR)Tie
Obstacle DetectionYESYESTie
Cliff DetectionYESYESTie
Multi-Room MappingYESYESTie

What the differences mean

Suction

The Dreame D30 Ultra is rated at 25000 Pa and the iRobot Roomba Plus 505 at 7000 Pa. Suction ratings across brands are not directly comparable, but a gap this large shows up on carpet and with sand or pet hair.

Battery

The Dreame D30 Ultra runs 230 minutes and the iRobot Roomba Plus 505 180 minutes, so the Dreame is the one to trust with a large floor in a single pass.

Smart home support

The iRobot Roomba Plus 505 supports Apple Home, SmartThings and Matter, and 5 GHz Wi-Fi as well as 2.4 GHz. The Dreame D30 Ultra lists all of those as not supported and is 2.4 GHz only. Both work with Alexa, Google Home and Home Assistant.

Noise

Owners of the iRobot Roomba Plus 505 report it louder than expected, above all while the dock cleans itself. Owners of the Dreame D30 Ultra describe it as quiet in daily use, though neither lists a decibel rating.

Warranty

The Dreame D30 Ultra has a 3 year warranty against 1 year for the iRobot Roomba Plus 505.

Which one to buy if

Winner
Dreame

Dreame D30 Ultra

21% OFF
Prime exclusive deal
$427.29
$539.99

Last recorded price

Buy on Amazon USA
  • + Price: $427.29
  • + Warranty: 3 years
  • + Battery Life: 230 minutes
  • - Rating: 4.1 vs 4.2
  • - Connectivity: 2.4 GHz WiFi vs 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth
iRobot

iRobot Roomba Plus 505

Prime exclusive deal
$682.00

Last recorded price

Buy on Amazon USA
  • + Rating: 4.2
  • + Connectivity: 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth
  • + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
  • - Price: $682.00 vs $427.29
  • - Warranty: 1 year vs 3 years

What owners say

Owners of both robots praise how quickly LiDAR builds an accurate map and how much upkeep a dock that empties, washes and dries the mop takes off their hands. Dreame D30 Ultra owners single out quiet running and long hair that does not catch in the brushes, while they say consumable costs should be spelled out at purchase and some report mop pad detection failures after about a year. iRobot Roomba Plus 505 owners single out strong pet hair pickup in multi-pet homes and obstacle avoidance that handles cords, and their complaints are noise, especially while the dock runs its self-cleaning cycle, bumper-stuck and navigation errors after a few months and trouble getting warranty support on purchases from third-party sellers.

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.

  • Dreame D30 Ultra
  • iRobot Roomba Plus 505

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Frequently Asked Questions

Which is better overall: Dreame D30 Ultra or iRobot Roomba Plus 505?

The Dreame D30 Ultra, for its 25000 Pa suction, longer battery and 3 year warranty. The iRobot Roomba Plus 505 is better connected, with 5 GHz Wi-Fi, Apple Home, SmartThings and Matter.

What is the difference between the Dreame D30 Ultra and the iRobot Roomba Plus 505?

Cleaning power versus connectivity. The Dreame D30 Ultra has far stronger suction and a longer battery. The iRobot Roomba Plus 505 supports 5 GHz Wi-Fi, Apple Home, SmartThings and Matter.

Does the iRobot Roomba Plus 505 work with Apple Home?

Yes, it lists Apple Home and Matter as supported. The Dreame D30 Ultra lists both as not supported.

Do the Dreame D30 Ultra and the iRobot Roomba Plus 505 mop as well as vacuum?

Yes, both mop and dock to wash and dry the mop pads automatically, and both empty their own bin.

Who should buy the Dreame D30 Ultra?

Pet owners and homes with carpet or a large floor who want the strongest suction and a 3 year warranty.

Who should buy the iRobot Roomba Plus 505?

Apple Home, SmartThings and Matter households, and buyers on a 5 GHz network who prefer the iRobot app and its obstacle avoidance.

Full comparison table

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