Comparison

Dreame L40s Pro Ultra vs Dreame X40 Ultra vs Roborock Qrevo Curv

Detailed Technical Comparison

Best Score

1 / 12

Dreame L40s Pro Ultra

8,1

Overall score

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1 / 8

Dreame X40 Ultra

7,6

Overall score

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1 / 14

Roborock Qrevo Curv

7,7

Overall score

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Scores

Dreame L40s Pro Ultra

Overall score 8,1

Power and Battery 6,6

Brushing System 9,1

Mopping System 7,8

Cleaning Base 7,6

Navigation and Intelligence 9,1

Dreame X40 Ultra

Overall score 7,6

Power and Battery 6,4

Brushing System 7,9

Mopping System 7,8

Cleaning Base 7,4

Navigation and Intelligence 8,9

Roborock Qrevo Curv

Overall score 7,7

Power and Battery 7,2

Brushing System 7,7

Mopping System 7,2

Cleaning Base 6,4

Navigation and Intelligence 7,4

Detailed Technical Comparison

Key features organised by category

General Information

Dreame L40s Pro Ultra

Dreame X40 Ultra

Roborock Qrevo Curv

Brand Diferente ?	Dreame L40s Pro Ultra: Dreame	Dreame X40 Ultra: Dreame	Roborock Qrevo Curv: Roborock
Release date Diferente ?	Dreame L40s Pro Ultra: 2025	Dreame X40 Ultra: 2024	Roborock Qrevo Curv: 2024

Power and Battery

Dreame L40s Pro Ultra

Dreame X40 Ultra

Roborock Qrevo Curv

Suction power Diferente ?	Dreame L40s Pro Ultra: 19.000 Pa	Dreame X40 Ultra: 12.000 Pa	Roborock Qrevo Curv: 18.500 Pa
Battery capacity Diferente ?	Dreame L40s Pro Ultra: 5.200 mAh	Dreame X40 Ultra: 6.400 mAh	Roborock Qrevo Curv: 6.400 mAh
Runtime Diferente ?	Dreame L40s Pro Ultra: 220 min	Dreame X40 Ultra: 194 min	Roborock Qrevo Curv: 240 min

Brushing System

Dreame L40s Pro Ultra

Dreame X40 Ultra

Roborock Qrevo Curv

Main brush Diferente ?	Dreame L40s Pro Ultra: Dual HyperStream Anti-Tangle Hair Brush	Dreame X40 Ultra: Simple Silicone Brush	Roborock Qrevo Curv: DuoDivide Anti-Tangle Hair Brush
Lifting main brush ?	Dreame L40s Pro Ultra: Sí	Dreame X40 Ultra: Sí	Roborock Qrevo Curv: Sí
Lifting side brush Diferente ?	Dreame L40s Pro Ultra: Sí	Dreame X40 Ultra: Sí	Roborock Qrevo Curv: No
Extendable side brush ?	Dreame L40s Pro Ultra: Sí	Dreame X40 Ultra: Sí	Roborock Qrevo Curv: Sí
Anti-tangle side brush ?	Dreame L40s Pro Ultra: Sí	Dreame X40 Ultra: Sí	Roborock Qrevo Curv: Sí
Cepillo para zocalos ?	Dreame L40s Pro Ultra: No	Dreame X40 Ultra: No	Roborock Qrevo Curv: No

Mopping System

Dreame L40s Pro Ultra

Dreame X40 Ultra

Roborock Qrevo Curv

Mopping type Diferente ?	Dreame L40s Pro Ultra: Two Rotating Mops 180 RPM	Dreame X40 Ultra: Two Rotating Mops 180 RPM	Roborock Qrevo Curv: Two Rotating Mops 200 RPM
Mop extension Diferente ?	Dreame L40s Pro Ultra: Yes, with RoboSwing movement	Dreame X40 Ultra: Yes, with RoboSwing movement	Roborock Qrevo Curv: Sí
Mop lifting Diferente ?	Dreame L40s Pro Ultra: Yes, 10.5 mm	Dreame X40 Ultra: Yes, 10.5 mm	Roborock Qrevo Curv: Yes, 10-20 mm
Floor mopping temperature ?	Dreame L40s Pro Ultra: Cold water	Dreame X40 Ultra: Cold water	Roborock Qrevo Curv: Cold water
Detach mops at base Diferente ?	Dreame L40s Pro Ultra: Sí	Dreame X40 Ultra: Sí	Roborock Qrevo Curv: No
Mop dirt detection ?	Dreame L40s Pro Ultra: Sí	Dreame X40 Ultra: Sí	Roborock Qrevo Curv: Sí
Floor dirt detection ?	Dreame L40s Pro Ultra: Sí	Dreame X40 Ultra: Sí	Roborock Qrevo Curv: Sí

Cleaning Base

Dreame L40s Pro Ultra

Dreame X40 Ultra

Roborock Qrevo Curv

Auto-emptying dust bin ?	Dreame L40s Pro Ultra: Sí	Dreame X40 Ultra: Sí	Roborock Qrevo Curv: Sí
Mop washing Diferente ?	Dreame L40s Pro Ultra: Yes, with hot water at 75°C	Dreame X40 Ultra: Yes, with hot water at 70°C	Roborock Qrevo Curv: Yes, with hot water at 75°C
Mop drying ?	Dreame L40s Pro Ultra: Yes, with hot air at 45°C	Dreame X40 Ultra: Yes, with hot air at 45°C	Roborock Qrevo Curv: Yes, with hot air at 45°C
Self-cleaning wash tray Diferente ?	Dreame L40s Pro Ultra: Yes, 3rd generation	Dreame X40 Ultra: Yes, 2nd generation	Roborock Qrevo Curv: Yes, 2.0
UV disinfection ?	Dreame L40s Pro Ultra: No	Dreame X40 Ultra: No	Roborock Qrevo Curv: No
Detergent tank Diferente ?	Dreame L40s Pro Ultra: Sí	Dreame X40 Ultra: Sí	Roborock Qrevo Curv: No
Automatic mop changing ?	Dreame L40s Pro Ultra: No	Dreame X40 Ultra: No	Roborock Qrevo Curv: No
Dust bag capacity Diferente ?	Dreame L40s Pro Ultra: 3.2 L	Dreame X40 Ultra: 3.2 L	Roborock Qrevo Curv: 2.5 L
Clean water tank Diferente ?	Dreame L40s Pro Ultra: 4.5 L	Dreame X40 Ultra: 4.5 L	Roborock Qrevo Curv: 4 L
Dirty water tank Diferente ?	Dreame L40s Pro Ultra: 4 L	Dreame X40 Ultra: 4 L	Roborock Qrevo Curv: 3 L
Plumbing connection kit Diferente ?	Dreame L40s Pro Ultra: Yes (purchased separately)	Dreame X40 Ultra: Yes (purchased separately)	Roborock Qrevo Curv: No
Integrated plumbing connection ?	Dreame L40s Pro Ultra: No	Dreame X40 Ultra: No	Roborock Qrevo Curv: No

Navigation and Intelligence

Dreame L40s Pro Ultra

Dreame X40 Ultra

Roborock Qrevo Curv

Navigation system ?	Dreame L40s Pro Ultra: 360° LiDAR turret	Dreame X40 Ultra: 360° LiDAR turret	Roborock Qrevo Curv: 360° LiDAR turret
Obstacle avoidance ?	Dreame L40s Pro Ultra: Sí	Dreame X40 Ultra: Sí	Roborock Qrevo Curv: Sí
AI camera ?	Dreame L40s Pro Ultra: Yes, dual	Dreame X40 Ultra: Yes, dual	Roborock Qrevo Curv: Yes, dual
Front 3D laser sensor ?	Dreame L40s Pro Ultra: Sí	Dreame X40 Ultra: Sí	Roborock Qrevo Curv: Sí
No. of recognised obstacles Diferente ?	Dreame L40s Pro Ultra: 180	Dreame X40 Ultra: 120	Roborock Qrevo Curv: 62
Pet recognition ?	Dreame L40s Pro Ultra: Sí	Dreame X40 Ultra: Sí	Roborock Qrevo Curv: Sí
Curtain detection Diferente ?	Dreame L40s Pro Ultra: Sí	Dreame X40 Ultra: Sí	Roborock Qrevo Curv: No
Remote camera access ?	Dreame L40s Pro Ultra: Sí	Dreame X40 Ultra: Sí	Roborock Qrevo Curv: Sí
Night vision LED ?	Dreame L40s Pro Ultra: Sí	Dreame X40 Ultra: Sí	Roborock Qrevo Curv: Sí
AI intelligent cleaning Diferente ?	Dreame L40s Pro Ultra: Yes, CleanGenius 2.0	Dreame X40 Ultra: Yes, CleanGenius 2.0	Roborock Qrevo Curv: Yes, SmartPlan 2.0
AI stain recognition Diferente ?	Dreame L40s Pro Ultra: Sí	Dreame X40 Ultra: Sí	Roborock Qrevo Curv: No
CPU / Algorithm Diferente ?	Dreame L40s Pro Ultra: ?	Dreame X40 Ultra: AI Sage 11.0 Quad-core	Roborock Qrevo Curv: RR Mason 11.0

Advanced Features

Dreame L40s Pro Ultra

Dreame X40 Ultra

Roborock Qrevo Curv

Step-climbing ability Diferente ?	Dreame L40s Pro Ultra: Single step 22 mm - Double step 40 mm	Dreame X40 Ultra: 22 mm	Roborock Qrevo Curv: Single step 30 mm - Double step 40 mm
Robotic arm ?	Dreame L40s Pro Ultra: No	Dreame X40 Ultra: No	Roborock Qrevo Curv: No
Built-in voice assistant Diferente ?	Dreame L40s Pro Ultra: Sí	Dreame X40 Ultra: No	Roborock Qrevo Curv: Sí
External voice assistant (Alexa, Google Home...) ?	Dreame L40s Pro Ultra: Sí	Dreame X40 Ultra: Sí	Roborock Qrevo Curv: Sí

Robot Tanks

Dreame L40s Pro Ultra

Dreame X40 Ultra

Roborock Qrevo Curv

Robot dust bin Diferente ?	Dreame L40s Pro Ultra: 300 ml	Dreame X40 Ultra: 300 ml	Roborock Qrevo Curv: 325 ml
Robot water tank ?	Dreame L40s Pro Ultra: 80 ml	Dreame X40 Ultra: 80 ml	Roborock Qrevo Curv: 80 ml

Robot Dimensions

Dreame L40s Pro Ultra

Dreame X40 Ultra

Roborock Qrevo Curv

Robot diameter Diferente ?	Dreame L40s Pro Ultra: 350 mm	Dreame X40 Ultra: 350 mm	Roborock Qrevo Curv: 352 mm
Robot height Diferente ?	Dreame L40s Pro Ultra: 103.8 mm	Dreame X40 Ultra: 97 mm	Roborock Qrevo Curv: 103 mm

Base Dimensions

Dreame L40s Pro Ultra

Dreame X40 Ultra

Roborock Qrevo Curv

Base width Diferente ?	Dreame L40s Pro Ultra: 340 mm	Dreame X40 Ultra: 340 mm	Roborock Qrevo Curv: 450 mm
Base height Diferente ?	Dreame L40s Pro Ultra: 590.5 mm	Dreame X40 Ultra: 590.5 mm	Roborock Qrevo Curv: 450 mm
Base depth Diferente ?	Dreame L40s Pro Ultra: 456.7 mm	Dreame X40 Ultra: 456.7 mm	Roborock Qrevo Curv: 450 mm