Comparison

Dreame L40s Pro Ultra vs Roborock Saros 20 vs Dreame X50 Ultra Blanca

Detailed Technical Comparison

1 / 12

Dreame L40s Pro Ultra

8,1

Overall score

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Best Score

1 / 9

Roborock Saros 20

8,8

Overall score

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Best value for money

1 / 10

Dreame X50 Ultra Blanca

8,5

Overall score

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Scores

Dreame L40s Pro Ultra

Power and Battery 6,6

Brushing System 10,0

Mopping System 8,3

Cleaning Base 6,9

Navigation and Intelligence 9,2

Roborock Saros 20

Power and Battery 10,0

Brushing System 9,7

Mopping System 8,7

Cleaning Base 7,3

Navigation and Intelligence 9,8

Dreame X50 Ultra Blanca

Power and Battery 7,6

Brushing System 10,0

Mopping System 8,3

Cleaning Base 7,5

Navigation and Intelligence 9,7

Detailed Technical Comparison

Key features organised by category

Información General

Dreame L40s Pro Ultra

Roborock Saros 20

Dreame X50 Ultra Blanca

Brand Diferente ?	Dreame L40s Pro Ultra: Dreame	Roborock Saros 20: Roborock	Dreame X50 Ultra Blanca: Dreame
Release date Diferente ?	Dreame L40s Pro Ultra: 2025	Roborock Saros 20: February 2026	Dreame X50 Ultra Blanca: 2025

Potencia y Batería

Dreame L40s Pro Ultra

Roborock Saros 20

Dreame X50 Ultra Blanca

Suction power Diferente ?	Dreame L40s Pro Ultra: 19.000 Pa	Roborock Saros 20: 36.000 Pa	Dreame X50 Ultra Blanca: 20.000 Pa
Battery capacity Diferente ?	Dreame L40s Pro Ultra: 5.200 mAh	Roborock Saros 20: 6.400 mAh	Dreame X50 Ultra Blanca: 6.400 mAh
Runtime Diferente ?	Dreame L40s Pro Ultra: 220 min	Roborock Saros 20: —	Dreame X50 Ultra Blanca: 180 min

Sistema de Cepillado

Dreame L40s Pro Ultra

Roborock Saros 20

Dreame X50 Ultra Blanca

Main brush Diferente ?	Dreame L40s Pro Ultra: Dual HyperStream Anti-Tangle Hair Brush	Roborock Saros 20: DuoDivide Anti-Tangle Hair Brush	Dreame X50 Ultra Blanca: Dual HyperStream Anti-Tangle Hair Brush
Lifting main brush ?	Dreame L40s Pro Ultra: Yes	Roborock Saros 20: Yes	Dreame X50 Ultra Blanca: Yes
Lifting side brush ?	Dreame L40s Pro Ultra: ✓ Sí	Roborock Saros 20: ✓ Sí	Dreame X50 Ultra Blanca: ✓ Sí
Extendable side brush ?	Dreame L40s Pro Ultra: ✓ Sí	Roborock Saros 20: ✓ Sí	Dreame X50 Ultra Blanca: ✓ Sí
Anti-tangle side brush ?	Dreame L40s Pro Ultra: ✓ Sí	Roborock Saros 20: ✓ Sí	Dreame X50 Ultra Blanca: ✓ Sí

Sistema de Fregado

Dreame L40s Pro Ultra

Roborock Saros 20

Dreame X50 Ultra Blanca

Mopping type Diferente ?	Dreame L40s Pro Ultra: Two Rotating Mops 180 RPM	Roborock Saros 20: Two Rotating Mops 200 RPM 13N	Dreame X50 Ultra Blanca: Two Rotating Mops 180 RPM
Mop extension Diferente ?	Dreame L40s Pro Ultra: Yes, with RoboSwing movement	Roborock Saros 20: Yes	Dreame X50 Ultra Blanca: Yes, with RoboSwing movement
Mop lifting Diferente ?	Dreame L40s Pro Ultra: Yes, 10.5 mm	Roborock Saros 20: Yes, 12-22 mm	Dreame X50 Ultra Blanca: Yes, 10.5 mm
Floor mopping temperature Diferente	Dreame L40s Pro Ultra: Cold water	Roborock Saros 20: Warm Water	Dreame X50 Ultra Blanca: Cold water
Detach mops at base ?	Dreame L40s Pro Ultra: ✓ Sí	Roborock Saros 20: ✓ Sí	Dreame X50 Ultra Blanca: ✓ Sí
Mop dirt detection ?	Dreame L40s Pro Ultra: ✓ Sí	Roborock Saros 20: ✓ Sí	Dreame X50 Ultra Blanca: ✓ Sí
Floor dirt detection ?	Dreame L40s Pro Ultra: ✓ Sí	Roborock Saros 20: ✓ Sí	Dreame X50 Ultra Blanca: ✓ Sí

Base de Limpieza

Dreame L40s Pro Ultra

Roborock Saros 20

Dreame X50 Ultra Blanca

Auto-emptying dust bin	Dreame L40s Pro Ultra: Yes	Roborock Saros 20: Yes	Dreame X50 Ultra Blanca: Yes
Mop washing Diferente ?	Dreame L40s Pro Ultra: Yes, with hot water at 75°C	Roborock Saros 20: Yes, with hot water at 100°C	Dreame X50 Ultra Blanca: Yes, with hot water at 80°C
Mop drying Diferente ?	Dreame L40s Pro Ultra: Yes, with hot air at 45°C	Roborock Saros 20: Yes, with hot air at 55°C	Dreame X50 Ultra Blanca: Yes, with hot air at 45°C
Self-cleaning wash tray Diferente ?	Dreame L40s Pro Ultra: Yes, 3rd generation	Roborock Saros 20: Yes, with hot water at 100°C	Dreame X50 Ultra Blanca: Yes, 3rd generation
UV disinfection Diferente ?	Dreame L40s Pro Ultra: ✗ No	Roborock Saros 20: ✗ No	Dreame X50 Ultra Blanca: ✓ Sí
Detergent tank ?	Dreame L40s Pro Ultra: ✓ Sí	Roborock Saros 20: ✓ Sí	Dreame X50 Ultra Blanca: ✓ Sí
Automatic mop changing	Dreame L40s Pro Ultra: No	Roborock Saros 20: No	Dreame X50 Ultra Blanca: No
Dust bag capacity Diferente ?	Dreame L40s Pro Ultra: 3.2 L	Roborock Saros 20: 2.5 L	Dreame X50 Ultra Blanca: 3.2 L
Clean water tank Diferente ?	Dreame L40s Pro Ultra: 4.5 L	Roborock Saros 20: 4 L	Dreame X50 Ultra Blanca: 4.5 L
Dirty water tank Diferente ?	Dreame L40s Pro Ultra: 4 L	Roborock Saros 20: 3 L	Dreame X50 Ultra Blanca: 4 L
Plumbing connection kit Diferente ?	Dreame L40s Pro Ultra: Yes (purchased separately)	Roborock Saros 20: ✗ No	Dreame X50 Ultra Blanca: Yes (purchased separately)
Integrated plumbing connection ?	Dreame L40s Pro Ultra: ✗ No	Roborock Saros 20: ✗ No	Dreame X50 Ultra Blanca: ✗ No

Navegación e Inteligencia

Dreame L40s Pro Ultra

Roborock Saros 20

Dreame X50 Ultra Blanca

Navigation system Diferente ?	Dreame L40s Pro Ultra: 360° LiDAR turret	Roborock Saros 20: StarSight 2.0	Dreame X50 Ultra Blanca: 360° Retractable LiDAR
Obstacle avoidance ?	Dreame L40s Pro Ultra: Yes	Roborock Saros 20: Yes	Dreame X50 Ultra Blanca: Yes
AI camera ?	Dreame L40s Pro Ultra: Yes, dual	Roborock Saros 20: Yes, dual	Dreame X50 Ultra Blanca: Yes, dual
Front 3D laser sensor ?	Dreame L40s Pro Ultra: ✓ Sí	Roborock Saros 20: ✓ Sí	Dreame X50 Ultra Blanca: ✓ Sí
No. of recognised obstacles Diferente ?	Dreame L40s Pro Ultra: 180	Roborock Saros 20: 300	Dreame X50 Ultra Blanca: 200
Pet recognition ?	Dreame L40s Pro Ultra: ✓ Sí	Roborock Saros 20: ✓ Sí	Dreame X50 Ultra Blanca: ✓ Sí
Curtain detection ?	Dreame L40s Pro Ultra: ✓ Sí	Roborock Saros 20: ✓ Sí	Dreame X50 Ultra Blanca: ✓ Sí
Remote camera access ?	Dreame L40s Pro Ultra: ✓ Sí	Roborock Saros 20: ✓ Sí	Dreame X50 Ultra Blanca: ✓ Sí
Night vision LED ?	Dreame L40s Pro Ultra: ✓ Sí	Roborock Saros 20: ✓ Sí	Dreame X50 Ultra Blanca: ✓ Sí
AI intelligent cleaning Diferente ?	Dreame L40s Pro Ultra: Yes, CleanGenius 2.0	Roborock Saros 20: Yes, SmartPlan 3.0	Dreame X50 Ultra Blanca: Yes, CleanGenius 2.0
AI stain recognition ?	Dreame L40s Pro Ultra: ✓ Sí	Roborock Saros 20: ✓ Sí	Dreame X50 Ultra Blanca: ✓ Sí
CPU / Algorithm Diferente ?	Dreame L40s Pro Ultra: ?	Roborock Saros 20: ?	Dreame X50 Ultra Blanca: AI Sage 13.0 Octa-core

Funciones Avanzadas

Dreame L40s Pro Ultra

Roborock Saros 20

Dreame X50 Ultra Blanca

Step-climbing ability Diferente ?	Dreame L40s Pro Ultra: Single step 22 mm - Double step 40 mm	Roborock Saros 20: Single step 45 mm - Double step 88 mm	Dreame X50 Ultra Blanca: Single step 42 mm - Double step 60 mm
Robotic arm ?	Dreame L40s Pro Ultra: ✗ No	Roborock Saros 20: ✗ No	Dreame X50 Ultra Blanca: ✗ No
Built-in voice assistant ?	Dreame L40s Pro Ultra: Yes	Roborock Saros 20: Yes	Dreame X50 Ultra Blanca: Yes
External voice assistant (Alexa, Google Home...)	Dreame L40s Pro Ultra: Yes	Roborock Saros 20: Yes	Dreame X50 Ultra Blanca: Yes

Depósitos del Robot

Dreame L40s Pro Ultra

Roborock Saros 20

Dreame X50 Ultra Blanca

Robot dust bin Diferente ?	Dreame L40s Pro Ultra: 300 ml	Roborock Saros 20: 270 ml	Dreame X50 Ultra Blanca: 395 ml
Robot water tank Diferente ?	Dreame L40s Pro Ultra: 80 ml	Roborock Saros 20: 69 ml	Dreame X50 Ultra Blanca: 80 ml

Dimensiones Robot

Dreame L40s Pro Ultra

Roborock Saros 20

Dreame X50 Ultra Blanca

Robot diameter Diferente ?	Dreame L40s Pro Ultra: 350 mm	Roborock Saros 20: 353 mm	Dreame X50 Ultra Blanca: 350 mm
Robot height Diferente ?	Dreame L40s Pro Ultra: 103.8 mm	Roborock Saros 20: 79.8 mm	Dreame X50 Ultra Blanca: 89 mm

Dimensiones Base

Dreame L40s Pro Ultra

Roborock Saros 20

Dreame X50 Ultra Blanca

Base width Diferente ?	Dreame L40s Pro Ultra: 340 mm	Roborock Saros 20: 381 mm	Dreame X50 Ultra Blanca: 340 mm
Base height Diferente ?	Dreame L40s Pro Ultra: 590.5 mm	Roborock Saros 20: 488 mm	Dreame X50 Ultra Blanca: 590.5 mm
Base depth Diferente ?	Dreame L40s Pro Ultra: 456.7 mm	Roborock Saros 20: 475 mm	Dreame X50 Ultra Blanca: 456.7 mm