Robot Vacuums · Head to head

Dreame L40s Ultra AE vs iRobot Roomba Plus 504

Full Robot Vacuums comparison in 2026

Updated August 2026
Data from Amazon and official Dreame and iRobot sites.
2026 verdict
Across the 2026 comparison, Dreame L40s Ultra AE earns the nod over iRobot Roomba Plus 504 on the strength of price, rating, and warranty. The main reason it wins is price, rating, and warranty, and mopping functionality and auto mop washing strengthen that case. You should still consider iRobot Roomba Plus 504 if battery life and integrations matter more than raw overall balance. In practical terms, Dreame L40s Ultra AE is the easier product to recommend.
vs
FeatureDreame L40s Ultra AEiRobot Roomba Plus 504Winner
Price$599.98$659.99Dreame L40s Ultra AE
Rating4.23.8Dreame L40s Ultra AE
Warranty3 years1 yearDreame L40s Ultra AE
Battery Life180 minutes210 minutesiRobot Roomba Plus 504
IntegrationsGoogle Home, Alexa, Home AssistantGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, IFTTT, MatteriRobot Roomba Plus 504
Mopping FunctionalityYESNODreame L40s Ultra AE
Auto Mop WashingYESNODreame L40s Ultra AE
Auto Mop DryingYESNODreame L40s Ultra AE
Auto RechargeYESYESTie
Connectivity2.4 GHz WiFi2.4 GHz WiFiTie
Navigation TypeLaser (LiDAR)Laser (LiDAR)Tie
Obstacle DetectionYESYESTie
Winner
Dreame

Dreame L40s Ultra AE

10% OFF
$599.98
$669.99
Buy on Amazon USA
  • + Price: $599.98
  • + Rating: 4.2
  • + Warranty: 3 years
  • - Battery Life: 180 minutes vs 210 minutes
  • - Integrations: Google Home, Alexa, Home Assistant vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, IFTTT, Matter

Frequently Asked Questions

Which is better overall: Dreame L40s Ultra AE or iRobot Roomba Plus 504?

Dreame L40s Ultra AE has the stronger overall profile in this comparison, especially for price, rating, and warranty.

What is the biggest difference between Dreame L40s Ultra AE and iRobot Roomba Plus 504?

Price is one of the clearest differences: Dreame L40s Ultra AE lists $599.98, while iRobot Roomba Plus 504 lists $659.99.

Which one looks better on price?

Dreame L40s Ultra AE is listed at $599.98, while iRobot Roomba Plus 504 is listed at $659.99. Dreame L40s Ultra AE (better spec).

Who should buy Dreame L40s Ultra AE?

Choose Dreame L40s Ultra AE if your priority is price and rating and that matters more than battery life.

Who should buy iRobot Roomba Plus 504?

Choose iRobot Roomba Plus 504 if your priority is battery life and integrations and that matters more than price.

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