Comparison

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

Detailed Technical Comparison

Best Score

Dreame L40s Pro Ultra

8,1
Overall score
View on Amazon View Specifications

Dreame X40 Ultra

7,5
Overall score
View on Amazon View Specifications

Roborock Qrevo Curv

7,5
Overall score
View on Amazon View Specifications

Scores

Dreame L40s Pro Ultra
Overall score 8,1
Power and Battery 6,0
Brushing System 7,9
Mopping System 7,8
Cleaning Base 7,8
Navigation and Intelligence 9,0
Dreame X40 Ultra
Overall score 7,5
Power and Battery 5,9
Brushing System 6,7
Mopping System 7,8
Cleaning Base 7,6
Navigation and Intelligence 8,8
Roborock Qrevo Curv
Overall score 7,5
Power and Battery 5,9
Brushing System 6,7
Mopping System 7,2
Cleaning Base 6,8
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 Different
?
Dreame L40s Pro Ultra: Dreame Dreame X40 Ultra: Dreame Roborock Qrevo Curv: Roborock
Release date Different
?
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 Different
?
Dreame L40s Pro Ultra: 19.000 Pa Dreame X40 Ultra: 12.000 Pa Roborock Qrevo Curv: 18.500 Pa
Battery capacity Different
?
Dreame L40s Pro Ultra: 5.200 mAh Dreame X40 Ultra: 6.400 mAh Roborock Qrevo Curv: 6.400 mAh
Declared runtime Different
?
Dreame L40s Pro Ultra: 220 min Dreame X40 Ultra: 194 min Roborock Qrevo Curv: 240 min
Fast battery charging Different
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv: No

Brushing System

Dreame L40s Pro Ultra
Dreame X40 Ultra
Roborock Qrevo Curv
Main brush Different
?
Dreame L40s Pro Ultra: Dual HyperStream Anti-Tangle Hair Brush Dreame X40 Ultra: Simple Silicone Brush Roborock Qrevo Curv: DuoDivide Anti-Tangle Hair Brush
Liftable main brush
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv: Sí
Liftable side brush Different
?
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
Skirting board brush
?
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 Different
?
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 Different
?
Dreame L40s Pro Ultra: Yes, with RoboSwing movement Dreame X40 Ultra: Yes, with RoboSwing movement Roborock Qrevo Curv: Sí
Mop lifting Different
?
Dreame L40s Pro Ultra: Yes, 0.4 in (10.5 mm) Dreame X40 Ultra: Yes, 0.4 in (10.5 mm) Roborock Qrevo Curv: Yes, 10-0.8 in (-20 mm)
Floor mopping temperature
?
Dreame L40s Pro Ultra: Cold water Dreame X40 Ultra: Cold water Roborock Qrevo Curv: Cold water
Remove mops at base Different
?
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 of dust bin
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv: Sí
Mop washing Different
?
Dreame L40s Pro Ultra: Yes, with hot water at 167 °F (75°C) Dreame X40 Ultra: Yes, with hot water at 158 °F (70°C) Roborock Qrevo Curv: Yes, with hot water at 167 °F (75°C)
Mop drying
?
Dreame L40s Pro Ultra: Yes, with hot air at 113 °F (45°C) Dreame X40 Ultra: Yes, with hot air at 113 °F (45°C) Roborock Qrevo Curv: Yes, with hot air at 113 °F (45°C)
Washing tray self-cleaning Different
?
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 Different
?
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 Different
?
Dreame L40s Pro Ultra: 3.2 L Dreame X40 Ultra: 3.2 L Roborock Qrevo Curv: 2.5 L
Clean water tank Different
?
Dreame L40s Pro Ultra: 4.5 L Dreame X40 Ultra: 4.5 L Roborock Qrevo Curv: 4 L
Dirty water tank Different
?
Dreame L40s Pro Ultra: 4 L Dreame X40 Ultra: 4 L Roborock Qrevo Curv: 3 L
Plumbing connection kit Different
?
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 Different
?
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
Cleaning behind curtains Different
?
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 Different
?
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 Different
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv: No
CPU / Algorithm Different
?
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
Ability to overcome steps Different
?
Dreame L40s Pro Ultra: Single step 0.9 in (22 mm) - Double step 40 mm Dreame X40 Ultra: 0.9 in (22 mm) Roborock Qrevo Curv: Single step 1.2 in (30 mm) - Double step 40 mm
Robotic arm
?
Dreame L40s Pro Ultra: No Dreame X40 Ultra: No Roborock Qrevo Curv: No
Integrated own voice assistant Different
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: No Roborock Qrevo Curv: Sí
Compatible with voice assistants (Alexa, Google Home...)
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv: Sí
Matter compatible
?
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 Different
?
Dreame L40s Pro Ultra: 300 ml Dreame X40 Ultra: 300 ml Roborock Qrevo Curv: 325 ml
Robot water tank
?
Dreame L40s Pro Ultra: 2.7 fl oz (80 ml) Dreame X40 Ultra: 2.7 fl oz (80 ml) Roborock Qrevo Curv: 2.7 fl oz (80 ml)

Robot Dimensions

Dreame L40s Pro Ultra
Dreame X40 Ultra
Roborock Qrevo Curv
Robot diameter Different
?
Dreame L40s Pro Ultra: 350 mm Dreame X40 Ultra: 350 mm Roborock Qrevo Curv: 352 mm
Robot height Different
?
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 Different
?
Dreame L40s Pro Ultra: 340 mm Dreame X40 Ultra: 340 mm Roborock Qrevo Curv: 450 mm
Base height Different
?
Dreame L40s Pro Ultra: 590.5 mm Dreame X40 Ultra: 590.5 mm Roborock Qrevo Curv: 450 mm
Base depth Different
?
Dreame L40s Pro Ultra: 456.7 mm Dreame X40 Ultra: 456.7 mm Roborock Qrevo Curv: 450 mm

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