Comparison

Dreame L40s Pro Ultra vs Roborock Qrevo Curv 2 Flow vs Roborock Qrevo Edge 2

Detailed Technical Comparison

Best Score

1 / 12

Dreame L40s Pro Ultra

8.1

Overall score

Price on Amazon

488,40€

View on Amazon

Roborock Qrevo Curv 2 Flow

7.1

Overall score

Price on Amazon

599,00€

View on Amazon

1 / 9

Roborock Qrevo Edge 2

8.0

Overall score

Price on Amazon

578,99€

View on Amazon

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

Value for money · Excelente · 🟢 Mejor compra 9.5

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

Value for money · Muy buena · 🔵 Buen precio para su gama 5.9

Roborock Qrevo Edge 2

Overall score 8.0

Power and Battery 5.9

Brushing System 6.7

Mopping System 8.7

Cleaning Base 7.1

Navigation and Intelligence 9.6

Value for money · Excelente · 🟢 Mejor compra 8.1

Detailed Technical Comparison

Key features organised by category

General Information

Dreame L40s Pro Ultra

Roborock Qrevo Curv 2 Flow

Roborock Qrevo Edge 2

Brand Different ?	Dreame L40s Pro Ultra: Dreame	Roborock Qrevo Curv 2 Flow: Roborock	Roborock Qrevo Edge 2: Roborock
Release date Different ?	Dreame L40s Pro Ultra: 2025	Roborock Qrevo Curv 2 Flow: February 2026	Roborock Qrevo Edge 2: May 2026

Power and Battery

Dreame L40s Pro Ultra

Roborock Qrevo Curv 2 Flow

Roborock Qrevo Edge 2

Suction power Different ?	Dreame L40s Pro Ultra: 19.000 Pa	Roborock Qrevo Curv 2 Flow: 20.000 Pa	Roborock Qrevo Edge 2: 25.000 Pa
Battery capacity ?	Dreame L40s Pro Ultra: 5.200 mAh	Roborock Qrevo Curv 2 Flow: 5.200 mAh	Roborock Qrevo Edge 2: 5.200 mAh
Declared runtime Different ?	Dreame L40s Pro Ultra: 220 min	Roborock Qrevo Curv 2 Flow: 242 min	Roborock Qrevo Edge 2: 188 min
Fast battery charging Different ?	Dreame L40s Pro Ultra: Sí	Roborock Qrevo Curv 2 Flow: Sí	Roborock Qrevo Edge 2: No

Brushing System

Dreame L40s Pro Ultra

Roborock Qrevo Curv 2 Flow

Roborock Qrevo Edge 2

Main brush Different ?	Dreame L40s Pro Ultra: Dual HyperStream Anti-Tangle Hair Brush	Roborock Qrevo Curv 2 Flow: DuoDivide Anti-Tangle Hair Brush	Roborock Qrevo Edge 2: DuoDivide Anti-Tangle Hair Brush
Liftable main brush ?	Dreame L40s Pro Ultra: Sí	Roborock Qrevo Curv 2 Flow: Sí	Roborock Qrevo Edge 2: Sí
Liftable side brush Different ?	Dreame L40s Pro Ultra: Sí	Roborock Qrevo Curv 2 Flow: Sí	Roborock Qrevo Edge 2: No
Extendable side brush Different ?	Dreame L40s Pro Ultra: Sí	Roborock Qrevo Curv 2 Flow: No	Roborock Qrevo Edge 2: Sí
Anti-tangle side brush Different ?	Dreame L40s Pro Ultra: Sí	Roborock Qrevo Curv 2 Flow: Yes, dual brush	Roborock Qrevo Edge 2: Sí
Skirting board brush ?	Dreame L40s Pro Ultra: No	Roborock Qrevo Curv 2 Flow: No	Roborock Qrevo Edge 2: No

Mopping System

Dreame L40s Pro Ultra

Roborock Qrevo Curv 2 Flow

Roborock Qrevo Edge 2

Mopping type Different ?	Dreame L40s Pro Ultra: Two Rotating Mops 180 RPM	Roborock Qrevo Curv 2 Flow: Roller 270 mm 200RPM	Roborock Qrevo Edge 2: Two Rotating Mops 230 RPM 8N
Mop extension Different ?	Dreame L40s Pro Ultra: Yes, with RoboSwing movement	Roborock Qrevo Curv 2 Flow: Sí	Roborock Qrevo Edge 2: Sí
Mop lifting Different ?	Dreame L40s Pro Ultra: Yes, 10.5 mm	Roborock Qrevo Curv 2 Flow: Yes, 15 mm + Roller Cover	Roborock Qrevo Edge 2: Yes, 12 mm
Floor mopping temperature Different ?	Dreame L40s Pro Ultra: Cold water	Roborock Qrevo Curv 2 Flow: Cold water	Roborock Qrevo Edge 2: Warm Water
Remove mops at base Different ?	Dreame L40s Pro Ultra: Sí	Roborock Qrevo Curv 2 Flow: No	Roborock Qrevo Edge 2: Sí
Mop dirt detection ?	Dreame L40s Pro Ultra: Sí	Roborock Qrevo Curv 2 Flow: Sí	Roborock Qrevo Edge 2: Sí
Floor dirt detection ?	Dreame L40s Pro Ultra: Sí	Roborock Qrevo Curv 2 Flow: Sí	Roborock Qrevo Edge 2: Sí

Cleaning Base

Dreame L40s Pro Ultra

Roborock Qrevo Curv 2 Flow

Roborock Qrevo Edge 2

Auto-emptying of dust bin ?	Dreame L40s Pro Ultra: Sí	Roborock Qrevo Curv 2 Flow: Sí	Roborock Qrevo Edge 2: Sí
Mop washing Different ?	Dreame L40s Pro Ultra: Yes, with hot water at 75°C	Roborock Qrevo Curv 2 Flow: Yes, with hot water at 75°C	Roborock Qrevo Edge 2: Yes, with hot water at 80°C
Mop drying Different ?	Dreame L40s Pro Ultra: Yes, with hot air at 45°C	Roborock Qrevo Curv 2 Flow: Yes, with hot air at 55°C	Roborock Qrevo Edge 2: Yes, with hot air at 55°C
Washing tray self-cleaning Different ?	Dreame L40s Pro Ultra: Yes, 3rd generation	Roborock Qrevo Curv 2 Flow: Sí	Roborock Qrevo Edge 2: Yes, 2.0
UV disinfection ?	Dreame L40s Pro Ultra: No	Roborock Qrevo Curv 2 Flow: No	Roborock Qrevo Edge 2: No
Detergent tank Different ?	Dreame L40s Pro Ultra: Sí	Roborock Qrevo Curv 2 Flow: No	Roborock Qrevo Edge 2: No
Automatic mop changing ?	Dreame L40s Pro Ultra: No	Roborock Qrevo Curv 2 Flow: No	Roborock Qrevo Edge 2: No
Dust bag capacity Different ?	Dreame L40s Pro Ultra: 3.2 L	Roborock Qrevo Curv 2 Flow: 2.7 L	Roborock Qrevo Edge 2: 2.7 L
Clean water tank Different ?	Dreame L40s Pro Ultra: 4.5 L	Roborock Qrevo Curv 2 Flow: 4 L	Roborock Qrevo Edge 2: 4 L
Dirty water tank Different ?	Dreame L40s Pro Ultra: 4 L	Roborock Qrevo Curv 2 Flow: 3.5 L	Roborock Qrevo Edge 2: 3.5 L
Plumbing connection kit Different ?	Dreame L40s Pro Ultra: Yes (purchased separately)	Roborock Qrevo Curv 2 Flow: No	Roborock Qrevo Edge 2: No
Integrated plumbing connection ?	Dreame L40s Pro Ultra: No	Roborock Qrevo Curv 2 Flow: No	Roborock Qrevo Edge 2: No

Navigation and Intelligence

Dreame L40s Pro Ultra

Roborock Qrevo Curv 2 Flow

Roborock Qrevo Edge 2

Navigation system Different ?	Dreame L40s Pro Ultra: 360° LiDAR turret	Roborock Qrevo Curv 2 Flow: 360° LiDAR turret	Roborock Qrevo Edge 2: 360° Retractable LiDAR
Obstacle avoidance ?	Dreame L40s Pro Ultra: Sí	Roborock Qrevo Curv 2 Flow: Sí	Roborock Qrevo Edge 2: Sí
AI camera Different ?	Dreame L40s Pro Ultra: Yes, dual	Roborock Qrevo Curv 2 Flow: Sí	Roborock Qrevo Edge 2: Sí
Front 3D laser sensor ?	Dreame L40s Pro Ultra: Sí	Roborock Qrevo Curv 2 Flow: Sí	Roborock Qrevo Edge 2: Sí
No. of recognised obstacles Different ?	Dreame L40s Pro Ultra: 180	Roborock Qrevo Curv 2 Flow: 200	Roborock Qrevo Edge 2: 280
Pet recognition ?	Dreame L40s Pro Ultra: Sí	Roborock Qrevo Curv 2 Flow: Sí	Roborock Qrevo Edge 2: Sí
Cleaning behind curtains Different ?	Dreame L40s Pro Ultra: Sí	Roborock Qrevo Curv 2 Flow: No	Roborock Qrevo Edge 2: Sí
Remote camera access ?	Dreame L40s Pro Ultra: Sí	Roborock Qrevo Curv 2 Flow: Sí	Roborock Qrevo Edge 2: Sí
Night vision LED ?	Dreame L40s Pro Ultra: Sí	Roborock Qrevo Curv 2 Flow: Sí	Roborock Qrevo Edge 2: Sí
AI intelligent cleaning Different ?	Dreame L40s Pro Ultra: Yes, CleanGenius 2.0	Roborock Qrevo Curv 2 Flow: Yes, SmartPlan 3.0	Roborock Qrevo Edge 2: Yes, SmartPlan 3.0
AI stain recognition ?	Dreame L40s Pro Ultra: Sí	Roborock Qrevo Curv 2 Flow: Sí	Roborock Qrevo Edge 2: Sí
CPU / Algorithm ?	Dreame L40s Pro Ultra: ?	Roborock Qrevo Curv 2 Flow: ?	Roborock Qrevo Edge 2: ?

Advanced Features

Dreame L40s Pro Ultra

Roborock Qrevo Curv 2 Flow

Roborock Qrevo Edge 2

Ability to overcome steps Different ?	Dreame L40s Pro Ultra: Single step 22 mm - Double step 40 mm	Roborock Qrevo Curv 2 Flow: 20 mm	Roborock Qrevo Edge 2: 20 mm
Robotic arm ?	Dreame L40s Pro Ultra: No	Roborock Qrevo Curv 2 Flow: No	Roborock Qrevo Edge 2: No
Integrated own voice assistant ?	Dreame L40s Pro Ultra: Sí	Roborock Qrevo Curv 2 Flow: Sí	Roborock Qrevo Edge 2: Sí
Compatible with voice assistants (Alexa, Google Home...) ?	Dreame L40s Pro Ultra: Sí	Roborock Qrevo Curv 2 Flow: Sí	Roborock Qrevo Edge 2: Sí
Matter compatible Different ?	Dreame L40s Pro Ultra: Sí	Roborock Qrevo Curv 2 Flow: Yes, via OTA update	Roborock Qrevo Edge 2: Sí

Robot Tanks

Dreame L40s Pro Ultra

Roborock Qrevo Curv 2 Flow

Roborock Qrevo Edge 2

Robot dust bin Different ?	Dreame L40s Pro Ultra: 300 ml	Roborock Qrevo Curv 2 Flow: 324 ml	Roborock Qrevo Edge 2: 240 ml
Robot water tank Different ?	Dreame L40s Pro Ultra: 80 ml	Roborock Qrevo Curv 2 Flow: Sí	Roborock Qrevo Edge 2: 67 ml

Robot Dimensions

Dreame L40s Pro Ultra

Roborock Qrevo Curv 2 Flow

Roborock Qrevo Edge 2

Robot diameter Different ?	Dreame L40s Pro Ultra: 350 mm	Roborock Qrevo Curv 2 Flow: 353 mm	Roborock Qrevo Edge 2: 352 mm
Robot height Different ?	Dreame L40s Pro Ultra: 103.8 mm	Roborock Qrevo Curv 2 Flow: 119 mm	Roborock Qrevo Edge 2: 79.8 mm

Base Dimensions

Dreame L40s Pro Ultra

Roborock Qrevo Curv 2 Flow

Roborock Qrevo Edge 2

Base width Different ?	Dreame L40s Pro Ultra: 340 mm	Roborock Qrevo Curv 2 Flow: 450 mm	Roborock Qrevo Edge 2: 340 mm
Base height Different ?	Dreame L40s Pro Ultra: 590.5 mm	Roborock Qrevo Curv 2 Flow: 450 mm	Roborock Qrevo Edge 2: 521 mm
Base depth Different ?	Dreame L40s Pro Ultra: 456.7 mm	Roborock Qrevo Curv 2 Flow: 450 mm	Roborock Qrevo Edge 2: 487 mm