Robot Vacuums · Head to head

Dreame L40s Ultra AE vs iRobot Roomba Plus 515 Combo Robot + AutoWash Dock

Full Robot Vacuums comparison in 2026

Updated September 2026
Data from Amazon and official Dreame and iRobot sites.
2026 verdict
For most buyers in 2026, iRobot Roomba Plus 515 Combo Robot + AutoWash Dock is the safer pick over Dreame L40s Ultra AE because of price, battery life, and connectivity.
iRobot Roomba Plus 515 Combo Robot + AutoWash Dock
Winner
iRobot Roomba Plus 515 Combo Robot + AutoWash Dock
$599.99$699.9914% OFF
Buy on Amazon USACheck price
The comparison tilts its way because of price, battery life, and connectivity, with suction power keeping it in front. Dreame L40s Ultra AE is the better fit only for buyers who prioritize warranty and integrations above everything else here. For most setups, iRobot Roomba Plus 515 Combo Robot + AutoWash Dock is the smarter buy.
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FeatureDreame L40s Ultra AEiRobot Roomba Plus 515 Combo Robot + AutoWash DockWinner
Price$669.99$599.99iRobot Roomba Plus 515 Combo Robot + AutoWash Dock
Warranty3 years1 yearDreame L40s Ultra AE
Battery Life180 minutes295 minutesiRobot Roomba Plus 515 Combo Robot + AutoWash Dock
Connectivity2.4 GHz WiFi2.4 GHz WiFi, 5 GHz WiFiiRobot Roomba Plus 515 Combo Robot + AutoWash Dock
IntegrationsGoogle Home, Alexa, Home AssistantGoogle Home, AlexaDreame L40s Ultra AE
Suction Power19000Pa22000PaiRobot Roomba Plus 515 Combo Robot + AutoWash Dock
Rating4.24.2Tie
Auto RechargeYESYESTie
Navigation TypeLaser (LiDAR)Laser (LiDAR)Tie
Obstacle DetectionYESYESTie
Cliff DetectionYESYESTie
Multi-Room MappingYESYESTie

Frequently Asked Questions

Which is better overall: Dreame L40s Ultra AE or iRobot Roomba Plus 515 Combo Robot + AutoWash Dock?

iRobot Roomba Plus 515 Combo Robot + AutoWash Dock has the stronger overall profile in this comparison, especially for price, battery life, and connectivity.

What is the biggest difference between Dreame L40s Ultra AE and iRobot Roomba Plus 515 Combo Robot + AutoWash Dock?

Price is one of the clearest differences: Dreame L40s Ultra AE lists $669.99, while iRobot Roomba Plus 515 Combo Robot + AutoWash Dock lists $599.99.

Which one looks better on price?

Dreame L40s Ultra AE is listed at $669.99, while iRobot Roomba Plus 515 Combo Robot + AutoWash Dock is listed at $599.99. iRobot Roomba Plus 515 Combo Robot + AutoWash Dock (better spec).

Who should buy Dreame L40s Ultra AE?

Choose Dreame L40s Ultra AE if your priority is warranty and integrations and that matters more than price.

Who should buy iRobot Roomba Plus 515 Combo Robot + AutoWash Dock?

Choose iRobot Roomba Plus 515 Combo Robot + AutoWash Dock if your priority is price and battery life and that matters more than warranty.

Full comparison table

Compare all 151 Robot Vacuums side by side

You are looking at two of them. The full table lines up all Robot Vacuums in the catalog with the same specs, so you can filter by what you need and sort by price or rating.

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  • 46 specs compared
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