Comparison

Dreame L40s Pro Ultra vs Dreame X40 Ultra vs Roborock Qrevo Curv 2 Pro

Detailed Technical Comparison

Best value for money

Dreame L40s Pro Ultra

8,0
Overall score
View on Amazon View Specifications

Dreame X40 Ultra

7,5
Overall score
View on Amazon View Specifications
Best Score

Roborock Qrevo Curv 2 Pro

8,1
Overall score
View on Amazon View Specifications

Scores

Dreame L40s Pro Ultra
Overall score 8,0
Power and Battery 6,4
Brushing System 9,1
Mopping System 7,2
Cleaning Base 7,6
Navigation and Intelligence 9,1
Dreame X40 Ultra
Overall score 7,5
Power and Battery 6,2
Brushing System 7,9
Mopping System 7,2
Cleaning Base 7,4
Navigation and Intelligence 8,9
Roborock Qrevo Curv 2 Pro
Overall score 8,1
Power and Battery 6,9
Brushing System 7,7
Mopping System 7,3
Cleaning Base 7,2
Navigation and Intelligence 8,9

Detailed Technical Comparison

Key features organised by category

General Information

Dreame L40s Pro Ultra
Dreame X40 Ultra
Roborock Qrevo Curv 2 Pro
Brand Diferente
?
Dreame L40s Pro Ultra: Dreame Dreame X40 Ultra: Dreame Roborock Qrevo Curv 2 Pro: Roborock
Release date Diferente
?
Dreame L40s Pro Ultra: 2025 Dreame X40 Ultra: 2024 Roborock Qrevo Curv 2 Pro: 2025

Power and Battery

Dreame L40s Pro Ultra
Dreame X40 Ultra
Roborock Qrevo Curv 2 Pro
Suction power Diferente
?
Dreame L40s Pro Ultra: 19.000 Pa Dreame X40 Ultra: 12.000 Pa Roborock Qrevo Curv 2 Pro: 25.000 Pa
Battery capacity Diferente
?
Dreame L40s Pro Ultra: 5.200 mAh Dreame X40 Ultra: 6.400 mAh Roborock Qrevo Curv 2 Pro: 6.400 mAh
Declared runtime Diferente
?
Dreame L40s Pro Ultra: 220 min Dreame X40 Ultra: 194 min Roborock Qrevo Curv 2 Pro: 290 min
Fast battery charging Diferente
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv 2 Pro: No

Brushing System

Dreame L40s Pro Ultra
Dreame X40 Ultra
Roborock Qrevo Curv 2 Pro
Main brush Diferente
?
Dreame L40s Pro Ultra: Dual HyperStream Anti-Tangle Hair Brush Dreame X40 Ultra: Simple Silicone Brush Roborock Qrevo Curv 2 Pro: DuoDivide Anti-Tangle Hair Brush
Liftable main brush
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv 2 Pro: Sí
Liftable side brush Diferente
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv 2 Pro: No
Extendable side brush
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv 2 Pro: Sí
Anti-tangle side brush
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv 2 Pro: Sí
Skirting board brush
?
Dreame L40s Pro Ultra: No Dreame X40 Ultra: No Roborock Qrevo Curv 2 Pro: No

Mopping System

Dreame L40s Pro Ultra
Dreame X40 Ultra
Roborock Qrevo Curv 2 Pro
Mopping type Diferente
?
Dreame L40s Pro Ultra: Two Rotating Mops 180 RPM Dreame X40 Ultra: Two Rotating Mops 180 RPM Roborock Qrevo Curv 2 Pro: Two Rotating Mops 200 RPM 12N
Mop extension Diferente
?
Dreame L40s Pro Ultra: Yes, with RoboSwing movement Dreame X40 Ultra: Yes, with RoboSwing movement Roborock Qrevo Curv 2 Pro: Sí
Mop lifting Diferente
?
Dreame L40s Pro Ultra: Yes, 10.5 mm Dreame X40 Ultra: Yes, 10.5 mm Roborock Qrevo Curv 2 Pro: Yes, 7-17 mm
Floor mopping temperature
?
Dreame L40s Pro Ultra: Cold water Dreame X40 Ultra: Cold water Roborock Qrevo Curv 2 Pro: Cold water
Remove mops at base
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv 2 Pro: Sí
Mop dirt detection
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv 2 Pro: Sí
Floor dirt detection
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv 2 Pro: Sí
Steam mopping
?
Dreame L40s Pro Ultra: No Dreame X40 Ultra: No Roborock Qrevo Curv 2 Pro: No

Cleaning Base

Dreame L40s Pro Ultra
Dreame X40 Ultra
Roborock Qrevo Curv 2 Pro
Auto-emptying of dust bin
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv 2 Pro: 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 2 Pro: Yes, with hot water at 100°C
Mop drying Diferente
?
Dreame L40s Pro Ultra: Yes, with hot air at 45°C Dreame X40 Ultra: Yes, with hot air at 45°C Roborock Qrevo Curv 2 Pro: Yes, with hot air at 55ºC
Washing tray self-cleaning Diferente
?
Dreame L40s Pro Ultra: Yes, 3rd generation Dreame X40 Ultra: Yes, 2nd generation Roborock Qrevo Curv 2 Pro: Yes, 3.0
UV disinfection
?
Dreame L40s Pro Ultra: No Dreame X40 Ultra: No Roborock Qrevo Curv 2 Pro: No
Detergent tank Diferente
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv 2 Pro: No
Automatic mop changing
?
Dreame L40s Pro Ultra: No Dreame X40 Ultra: No Roborock Qrevo Curv 2 Pro: No
Dust bag capacity Diferente
?
Dreame L40s Pro Ultra: 3.2 L Dreame X40 Ultra: 3.2 L Roborock Qrevo Curv 2 Pro: 2.5 L
Clean water tank Diferente
?
Dreame L40s Pro Ultra: 4.5 L Dreame X40 Ultra: 4.5 L Roborock Qrevo Curv 2 Pro: 4 L
Dirty water tank Diferente
?
Dreame L40s Pro Ultra: 4 L Dreame X40 Ultra: 4 L Roborock Qrevo Curv 2 Pro: 3 L
Plumbing connection kit Diferente
?
Dreame L40s Pro Ultra: Yes (purchased separately) Dreame X40 Ultra: Yes (purchased separately) Roborock Qrevo Curv 2 Pro: No
Integrated plumbing connection
?
Dreame L40s Pro Ultra: No Dreame X40 Ultra: No Roborock Qrevo Curv 2 Pro: No

Navigation and Intelligence

Dreame L40s Pro Ultra
Dreame X40 Ultra
Roborock Qrevo Curv 2 Pro
Navigation system Diferente
?
Dreame L40s Pro Ultra: 360° LiDAR turret Dreame X40 Ultra: 360° LiDAR turret Roborock Qrevo Curv 2 Pro: 360° Retractable LiDAR
Obstacle avoidance
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv 2 Pro: Sí
AI camera
?
Dreame L40s Pro Ultra: Yes, dual Dreame X40 Ultra: Yes, dual Roborock Qrevo Curv 2 Pro: Yes, dual
Front 3D laser sensor
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv 2 Pro: Sí
No. of recognised obstacles Diferente
?
Dreame L40s Pro Ultra: 180 Dreame X40 Ultra: 120 Roborock Qrevo Curv 2 Pro: 200
Pet recognition
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv 2 Pro: Sí
Cleaning behind curtains Diferente
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv 2 Pro: No
Remote camera access
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv 2 Pro: Sí
Night vision LED
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv 2 Pro: Sí
AI intelligent cleaning Diferente
?
Dreame L40s Pro Ultra: Yes, CleanGenius 2.0 Dreame X40 Ultra: Yes, CleanGenius 2.0 Roborock Qrevo Curv 2 Pro: Yes, SmartPlan 3.0
AI stain recognition
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv 2 Pro: Sí
CPU / Algorithm Diferente
?
Dreame L40s Pro Ultra: ? Dreame X40 Ultra: AI Sage 11.0 Quad-core Roborock Qrevo Curv 2 Pro: ?

Advanced Features

Dreame L40s Pro Ultra
Dreame X40 Ultra
Roborock Qrevo Curv 2 Pro
Ability to overcome steps Diferente
?
Dreame L40s Pro Ultra: Single step 22 mm - Double step 40 mm Dreame X40 Ultra: 22 mm Roborock Qrevo Curv 2 Pro: Single step 30 mm - Double step 40 mm
Robotic arm
?
Dreame L40s Pro Ultra: No Dreame X40 Ultra: No Roborock Qrevo Curv 2 Pro: No
Integrated own voice assistant Diferente
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: No Roborock Qrevo Curv 2 Pro: Sí
Compatible with voice assistants (Alexa, Google Home...)
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv 2 Pro: Sí
Matter compatible Diferente
?
Dreame L40s Pro Ultra: Sí Dreame X40 Ultra: Sí Roborock Qrevo Curv 2 Pro: Yes, via OTA update

Robot Tanks

Dreame L40s Pro Ultra
Dreame X40 Ultra
Roborock Qrevo Curv 2 Pro
Robot dust bin Diferente
?
Dreame L40s Pro Ultra: 300 ml Dreame X40 Ultra: 300 ml Roborock Qrevo Curv 2 Pro: 245 ml
Robot water tank Diferente
?
Dreame L40s Pro Ultra: 80 ml Dreame X40 Ultra: 80 ml Roborock Qrevo Curv 2 Pro: 67 ml

Robot Dimensions

Dreame L40s Pro Ultra
Dreame X40 Ultra
Roborock Qrevo Curv 2 Pro
Robot diameter Diferente
?
Dreame L40s Pro Ultra: 350 mm Dreame X40 Ultra: 350 mm Roborock Qrevo Curv 2 Pro: 352 mm
Robot height Diferente
?
Dreame L40s Pro Ultra: 103.8 mm Dreame X40 Ultra: 97 mm Roborock Qrevo Curv 2 Pro: 79.8 mm

Base Dimensions

Dreame L40s Pro Ultra
Dreame X40 Ultra
Roborock Qrevo Curv 2 Pro
Base width Diferente
?
Dreame L40s Pro Ultra: 340 mm Dreame X40 Ultra: 340 mm Roborock Qrevo Curv 2 Pro: 450 mm
Base height Diferente
?
Dreame L40s Pro Ultra: 590.5 mm Dreame X40 Ultra: 590.5 mm Roborock Qrevo Curv 2 Pro: 450 mm
Base depth Diferente
?
Dreame L40s Pro Ultra: 456.7 mm Dreame X40 Ultra: 456.7 mm Roborock Qrevo Curv 2 Pro: 450 mm

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Best value for money Dreame L40s Pro Ultra View on Amazon Dreame X40 Ultra View on Amazon Best Score Roborock Qrevo Curv 2 Pro View on Amazon

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