Comparison

Dreame L40 Ultra AE vs Roborock Qrevo Curv 2 Flow

Detailed Technical Comparison

Best value for money

Dreame L40 Ultra AE

6.7
Overall score
View on Amazon
Best Score

Roborock Qrevo Curv 2 Flow

7.1
Overall score
View on Amazon

Scores

Dreame L40 Ultra AE
Overall score 6.7
Power and Battery 6.0
Brushing System 3.4
Mopping System 6.9
Cleaning Base 7.8
Navigation and Intelligence 7.3
Roborock Qrevo Curv 2 Flow
Overall score 7.1
Power and Battery 6.1
Brushing System 5.9
Mopping System 7.3
Cleaning Base 6.9
Navigation and Intelligence 7.0

Detailed Technical Comparison

Key features organised by category

General Information

Dreame L40 Ultra AE
Roborock Qrevo Curv 2 Flow
Brand Different
?
Dreame L40 Ultra AE: Dreame Roborock Qrevo Curv 2 Flow: Roborock
Release date Different
?
Dreame L40 Ultra AE: 2025 Roborock Qrevo Curv 2 Flow: February 2026

Power and Battery

Dreame L40 Ultra AE
Roborock Qrevo Curv 2 Flow
Suction power Different
?
Dreame L40 Ultra AE: 19.000 Pa Roborock Qrevo Curv 2 Flow: 20.000 Pa
Battery capacity
?
Dreame L40 Ultra AE: 5.200 mAh Roborock Qrevo Curv 2 Flow: 5.200 mAh
Declared runtime Different
?
Dreame L40 Ultra AE: — Roborock Qrevo Curv 2 Flow: 242 min
Fast battery charging
?
Dreame L40 Ultra AE: Sí Roborock Qrevo Curv 2 Flow: Sí

Brushing System

Dreame L40 Ultra AE
Roborock Qrevo Curv 2 Flow
Main brush Different
?
Dreame L40 Ultra AE: TriCut 3.0 Roborock Qrevo Curv 2 Flow: DuoDivide Anti-Tangle Hair Brush
Liftable main brush
?
Dreame L40 Ultra AE: Sí Roborock Qrevo Curv 2 Flow: Sí
Liftable side brush Different
?
Dreame L40 Ultra AE: No Roborock Qrevo Curv 2 Flow: Sí
Extendable side brush
?
Dreame L40 Ultra AE: No Roborock Qrevo Curv 2 Flow: No
Anti-tangle side brush Different
?
Dreame L40 Ultra AE: No Roborock Qrevo Curv 2 Flow: Yes, dual brush
Skirting board brush
?
Dreame L40 Ultra AE: No Roborock Qrevo Curv 2 Flow: No

Mopping System

Dreame L40 Ultra AE
Roborock Qrevo Curv 2 Flow
Mopping type Different
?
Dreame L40 Ultra AE: Two Rotating Mops 180 RPM Roborock Qrevo Curv 2 Flow: Roller 270 mm 200RPM
Mop extension Different
?
Dreame L40 Ultra AE: Yes, with RoboSwing movement Roborock Qrevo Curv 2 Flow: Sí
Mop lifting Different
?
Dreame L40 Ultra AE: Yes, 10.5 mm Roborock Qrevo Curv 2 Flow: Yes, 15 mm + Roller Cover
Floor mopping temperature
?
Dreame L40 Ultra AE: Cold water Roborock Qrevo Curv 2 Flow: Cold water
Remove mops at base
?
Dreame L40 Ultra AE: No Roborock Qrevo Curv 2 Flow: No
Mop dirt detection
?
Dreame L40 Ultra AE: Sí Roborock Qrevo Curv 2 Flow: Sí
Floor dirt detection
?
Dreame L40 Ultra AE: Sí Roborock Qrevo Curv 2 Flow: Sí

Cleaning Base

Dreame L40 Ultra AE
Roborock Qrevo Curv 2 Flow
Auto-emptying of dust bin
?
Dreame L40 Ultra AE: Sí Roborock Qrevo Curv 2 Flow: Sí
Mop washing
?
Dreame L40 Ultra AE: Yes, with hot water at 75°C Roborock Qrevo Curv 2 Flow: Yes, with hot water at 75°C
Mop drying Different
?
Dreame L40 Ultra AE: Yes, with hot air at 45°C Roborock Qrevo Curv 2 Flow: Yes, with hot air at 55°C
Washing tray self-cleaning Different
?
Dreame L40 Ultra AE: Yes, 2nd generation Roborock Qrevo Curv 2 Flow: Sí
UV disinfection
?
Dreame L40 Ultra AE: No Roborock Qrevo Curv 2 Flow: No
Detergent tank Different
?
Dreame L40 Ultra AE: Sí Roborock Qrevo Curv 2 Flow: No
Automatic mop changing
?
Dreame L40 Ultra AE: No Roborock Qrevo Curv 2 Flow: No
Dust bag capacity Different
?
Dreame L40 Ultra AE: 3.2 L Roborock Qrevo Curv 2 Flow: 2.7 L
Clean water tank Different
?
Dreame L40 Ultra AE: 4.5 L Roborock Qrevo Curv 2 Flow: 4 L
Dirty water tank Different
?
Dreame L40 Ultra AE: 4 L Roborock Qrevo Curv 2 Flow: 3.5 L
Plumbing connection kit Different
?
Dreame L40 Ultra AE: Yes (purchased separately) Roborock Qrevo Curv 2 Flow: No
Integrated plumbing connection
?
Dreame L40 Ultra AE: No Roborock Qrevo Curv 2 Flow: No

Navigation and Intelligence

Dreame L40 Ultra AE
Roborock Qrevo Curv 2 Flow
Navigation system
?
Dreame L40 Ultra AE: 360° LiDAR turret Roborock Qrevo Curv 2 Flow: 360° LiDAR turret
Obstacle avoidance
?
Dreame L40 Ultra AE: Sí Roborock Qrevo Curv 2 Flow: Sí
AI camera
?
Dreame L40 Ultra AE: Sí Roborock Qrevo Curv 2 Flow: Sí
Front 3D laser sensor
?
Dreame L40 Ultra AE: Sí Roborock Qrevo Curv 2 Flow: Sí
No. of recognised obstacles Different
?
Dreame L40 Ultra AE: 120 Roborock Qrevo Curv 2 Flow: 200
Pet recognition
?
Dreame L40 Ultra AE: Sí Roborock Qrevo Curv 2 Flow: Sí
Cleaning behind curtains
?
Dreame L40 Ultra AE: No Roborock Qrevo Curv 2 Flow: No
Remote camera access
?
Dreame L40 Ultra AE: Sí Roborock Qrevo Curv 2 Flow: Sí
Night vision LED
?
Dreame L40 Ultra AE: Sí Roborock Qrevo Curv 2 Flow: Sí
AI intelligent cleaning Different
?
Dreame L40 Ultra AE: Yes, CleanGenius 2.0 Roborock Qrevo Curv 2 Flow: Yes, SmartPlan 3.0
AI stain recognition Different
?
Dreame L40 Ultra AE: No Roborock Qrevo Curv 2 Flow: Sí
CPU / Algorithm
?
Dreame L40 Ultra AE: ? Roborock Qrevo Curv 2 Flow: ?

Advanced Features

Dreame L40 Ultra AE
Roborock Qrevo Curv 2 Flow
Ability to overcome steps
?
Dreame L40 Ultra AE: 20 mm Roborock Qrevo Curv 2 Flow: 20 mm
Robotic arm
?
Dreame L40 Ultra AE: No Roborock Qrevo Curv 2 Flow: No
Integrated own voice assistant Different
?
Dreame L40 Ultra AE: No Roborock Qrevo Curv 2 Flow: Sí
Compatible with voice assistants (Alexa, Google Home...)
?
Dreame L40 Ultra AE: Sí Roborock Qrevo Curv 2 Flow: Sí
Matter compatible Different
?
Dreame L40 Ultra AE: Sí Roborock Qrevo Curv 2 Flow: Yes, via OTA update

Robot Tanks

Dreame L40 Ultra AE
Roborock Qrevo Curv 2 Flow
Robot dust bin Different
?
Dreame L40 Ultra AE: 395 ml Roborock Qrevo Curv 2 Flow: 324 ml
Robot water tank Different
?
Dreame L40 Ultra AE: 80 ml Roborock Qrevo Curv 2 Flow: Sí

Robot Dimensions

Dreame L40 Ultra AE
Roborock Qrevo Curv 2 Flow
Robot diameter Different
?
Dreame L40 Ultra AE: 350 mm Roborock Qrevo Curv 2 Flow: 353 mm
Robot height Different
?
Dreame L40 Ultra AE: 97 mm Roborock Qrevo Curv 2 Flow: 119 mm

Base Dimensions

Dreame L40 Ultra AE
Roborock Qrevo Curv 2 Flow
Base width Different
?
Dreame L40 Ultra AE: 340 mm Roborock Qrevo Curv 2 Flow: 450 mm
Base height Different
?
Dreame L40 Ultra AE: 590.5 mm Roborock Qrevo Curv 2 Flow: 450 mm
Base depth Different
?
Dreame L40 Ultra AE: 456.7 mm Roborock Qrevo Curv 2 Flow: 450 mm

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