Comparison

Dreame X50s Ultra vs Roborock Qrevo Edge 2 Flow vs Roborock Saros 20

Detailed Technical Comparison

Best Score

Dreame X50s Ultra

9,0
Overall score
View on Amazon View Specifications
Best value for money

Roborock Qrevo Edge 2 Flow

7,9
Overall score
View on Amazon View Specifications

Roborock Saros 20

8,6
Overall score
View on Amazon View Specifications

Scores

Dreame X50s Ultra
Overall score 9,0
Power and Battery 8,5
Brushing System 7,9
Mopping System 9,2
Cleaning Base 8,6
Navigation and Intelligence 9,8
Roborock Qrevo Edge 2 Flow
Overall score 7,9
Power and Battery 7,0
Brushing System 7,4
Mopping System 7,4
Cleaning Base 7,1
Navigation and Intelligence 9,7
Roborock Saros 20
Overall score 8,6
Power and Battery 8,6
Brushing System 6,7
Mopping System 8,6
Cleaning Base 8,2
Navigation and Intelligence 8,2

Detailed Technical Comparison

Key features organised by category

General Information

Dreame X50s Ultra
Roborock Qrevo Edge 2 Flow
Roborock Saros 20
Brand Different
?
Dreame X50s Ultra: Dreame Roborock Qrevo Edge 2 Flow: Roborock Roborock Saros 20: Roborock
Release date Different
?
Dreame X50s Ultra: May 2026 Roborock Qrevo Edge 2 Flow: August 2026 Roborock Saros 20: February 2026
Número de modelo Different
?
Dreame X50s Ultra: RLX92DE Roborock Qrevo Edge 2 Flow: — Roborock Saros 20: —

Power and Battery

Dreame X50s Ultra
Roborock Qrevo Edge 2 Flow
Roborock Saros 20
Suction power Different
?
Dreame X50s Ultra: 35.000 Pa Roborock Qrevo Edge 2 Flow: 35.000 Pa Roborock Saros 20: 36.000 Pa
Battery capacity Different
?
Dreame X50s Ultra: 6.400 mAh Roborock Qrevo Edge 2 Flow: 5200 mAh Roborock Saros 20: 6.400 mAh
Declared runtime Different
?
Dreame X50s Ultra: 186 min Roborock Qrevo Edge 2 Flow: — Roborock Saros 20: —
Fast battery charging Different
?
Dreame X50s Ultra: Sí Roborock Qrevo Edge 2 Flow: No Roborock Saros 20: Sí

Brushing System

Dreame X50s Ultra
Roborock Qrevo Edge 2 Flow
Roborock Saros 20
Main brush Different
?
Dreame X50s Ultra: Dual HyperStream 2.0 Anti-Tangle Brush Roborock Qrevo Edge 2 Flow: DuoDivide Anti-Tangle Hair Brush Roborock Saros 20: DuoDivide Anti-Tangle Hair Brush
Liftable main brush
?
Dreame X50s Ultra: Sí Roborock Qrevo Edge 2 Flow: Sí Roborock Saros 20: Sí
Liftable side brush
?
Dreame X50s Ultra: Sí Roborock Qrevo Edge 2 Flow: Sí Roborock Saros 20: Sí
Extendable side brush Different
?
Dreame X50s Ultra: Sí Roborock Qrevo Edge 2 Flow: Reversible side brush Roborock Saros 20: Sí
Anti-tangle side brush
?
Dreame X50s Ultra: Sí Roborock Qrevo Edge 2 Flow: Sí Roborock Saros 20: Sí
Skirting board brush
?
Dreame X50s Ultra: No Roborock Qrevo Edge 2 Flow: No Roborock Saros 20: No

Mopping System

Dreame X50s Ultra
Roborock Qrevo Edge 2 Flow
Roborock Saros 20
Mopping type Different
?
Dreame X50s Ultra: Two Rotating Mops 200 RPM 15N Roborock Qrevo Edge 2 Flow: 270 mm roller 240RPM 15M Roborock Saros 20: Two Rotating Mops 200 RPM 13N
Mop extension Different
?
Dreame X50s Ultra: Yes, with RoboSwing movement Roborock Qrevo Edge 2 Flow: Sí Roborock Saros 20: Sí
Mop lifting Different
?
Dreame X50s Ultra: Yes, 10.5 mm Roborock Qrevo Edge 2 Flow: Yes, 15 mm + Roller Cover Roborock Saros 20: Yes, 12-22 mm
Floor mopping temperature Different
?
Dreame X50s Ultra: Hot Water 40°C Roborock Qrevo Edge 2 Flow: Cold water Roborock Saros 20: Warm Water
Remove mops at base Different
?
Dreame X50s Ultra: Sí Roborock Qrevo Edge 2 Flow: No Roborock Saros 20: Sí
Mop dirt detection
?
Dreame X50s Ultra: Sí Roborock Qrevo Edge 2 Flow: Sí Roborock Saros 20: Sí
Floor dirt detection
?
Dreame X50s Ultra: Sí Roborock Qrevo Edge 2 Flow: Sí Roborock Saros 20: Sí

Cleaning Base

Dreame X50s Ultra
Roborock Qrevo Edge 2 Flow
Roborock Saros 20
Auto-emptying of dust bin
?
Dreame X50s Ultra: Sí Roborock Qrevo Edge 2 Flow: Sí Roborock Saros 20: Sí
Mop washing Different
?
Dreame X50s Ultra: Yes, with hot water at 100°C Roborock Qrevo Edge 2 Flow: Yes, with hot water at 75°C Roborock Saros 20: Yes, with hot water at 100°C
Mop drying Different
?
Dreame X50s Ultra: Yes, with hot air Roborock Qrevo Edge 2 Flow: Yes, with hot air at 63°C Roborock Saros 20: Yes, with hot air at 55°C
Washing tray self-cleaning Different
?
Dreame X50s Ultra: Yes, 3rd generation Roborock Qrevo Edge 2 Flow: Removable tray Roborock Saros 20: Yes, with hot water at 100°C
UV disinfection
?
Dreame X50s Ultra: No Roborock Qrevo Edge 2 Flow: No Roborock Saros 20: No
Detergent tank Different
?
Dreame X50s Ultra: Sí Roborock Qrevo Edge 2 Flow: No Roborock Saros 20: Sí
Automatic mop changing
?
Dreame X50s Ultra: No Roborock Qrevo Edge 2 Flow: No Roborock Saros 20: No
Dust bag capacity Different
?
Dreame X50s Ultra: 3.2 L Roborock Qrevo Edge 2 Flow: 2.7 L Roborock Saros 20: 2.5 L
Clean water tank Different
?
Dreame X50s Ultra: 4.2 L Roborock Qrevo Edge 2 Flow: 4 L Roborock Saros 20: 4 L
Dirty water tank
?
Dreame X50s Ultra: 3 L Roborock Qrevo Edge 2 Flow: 3 L Roborock Saros 20: 3 L
Plumbing connection kit Different
?
Dreame X50s Ultra: Yes (purchased separately) Roborock Qrevo Edge 2 Flow: No Roborock Saros 20: No
Integrated plumbing connection
?
Dreame X50s Ultra: No Roborock Qrevo Edge 2 Flow: No Roborock Saros 20: No

Navigation and Intelligence

Dreame X50s Ultra
Roborock Qrevo Edge 2 Flow
Roborock Saros 20
Navigation system Different
?
Dreame X50s Ultra: 360° Retractable LiDAR Roborock Qrevo Edge 2 Flow: 360° Retractable LiDAR Roborock Saros 20: StarSight 2.0
Obstacle avoidance Different
?
Dreame X50s Ultra: Yes, with proactive lighting Roborock Qrevo Edge 2 Flow: Sí Roborock Saros 20: Sí
AI camera Different
?
Dreame X50s Ultra: Yes, dual RGB Roborock Qrevo Edge 2 Flow: Yes, RGB Roborock Saros 20: Yes, dual
Front 3D laser sensor Different
?
Dreame X50s Ultra: Sí Roborock Qrevo Edge 2 Flow: Yes, with structured light Roborock Saros 20: Sí
No. of recognised obstacles Different
?
Dreame X50s Ultra: 280 Roborock Qrevo Edge 2 Flow: 280 Roborock Saros 20: 300
Pet recognition
?
Dreame X50s Ultra: Sí Roborock Qrevo Edge 2 Flow: Sí Roborock Saros 20: Sí
Cleaning behind curtains
?
Dreame X50s Ultra: Sí Roborock Qrevo Edge 2 Flow: Sí Roborock Saros 20: Sí
Remote camera access
?
Dreame X50s Ultra: Sí Roborock Qrevo Edge 2 Flow: Sí Roborock Saros 20: Sí
Night vision LED
?
Dreame X50s Ultra: Sí Roborock Qrevo Edge 2 Flow: Sí Roborock Saros 20: Sí
AI intelligent cleaning Different
?
Dreame X50s Ultra: Yes, CleanGenius 3.0 Roborock Qrevo Edge 2 Flow: Yes, SmartPlan 3.0 Roborock Saros 20: Yes, SmartPlan 3.0
AI stain recognition
?
Dreame X50s Ultra: Sí Roborock Qrevo Edge 2 Flow: Sí Roborock Saros 20: Sí
CPU / Algorithm Different
?
Dreame X50s Ultra: ? Roborock Qrevo Edge 2 Flow: — Roborock Saros 20: ?

Advanced Features

Dreame X50s Ultra
Roborock Qrevo Edge 2 Flow
Roborock Saros 20
Ability to overcome steps Different
?
Dreame X50s Ultra: Single step 45 mm - Double step 88 mm Roborock Qrevo Edge 2 Flow: 20 mm Roborock Saros 20: Single step 45 mm - Double step 88 mm
Robotic arm
?
Dreame X50s Ultra: No Roborock Qrevo Edge 2 Flow: No Roborock Saros 20: No
Integrated own voice assistant
?
Dreame X50s Ultra: Sí Roborock Qrevo Edge 2 Flow: Sí Roborock Saros 20: Sí
Compatible with voice assistants (Alexa, Google Home...)
?
Dreame X50s Ultra: Sí Roborock Qrevo Edge 2 Flow: Sí Roborock Saros 20: Sí
Matter compatible
?
Dreame X50s Ultra: Sí Roborock Qrevo Edge 2 Flow: Sí Roborock Saros 20: Sí

Robot Tanks

Dreame X50s Ultra
Roborock Qrevo Edge 2 Flow
Roborock Saros 20
Robot dust bin Different
?
Dreame X50s Ultra: 235 ml Roborock Qrevo Edge 2 Flow: ? Roborock Saros 20: 270 ml
Robot water tank Different
?
Dreame X50s Ultra: 80 ml Roborock Qrevo Edge 2 Flow: ? Roborock Saros 20: 69 ml

Robot Dimensions

Dreame X50s Ultra
Roborock Qrevo Edge 2 Flow
Roborock Saros 20
Robot diameter Different
?
Dreame X50s Ultra: 352 mm Roborock Qrevo Edge 2 Flow: 353 mm Roborock Saros 20: 353 mm
Robot height Different
?
Dreame X50s Ultra: 79.5 mm Roborock Qrevo Edge 2 Flow: 89.8 mm Roborock Saros 20: 79.8 mm

Base Dimensions

Dreame X50s Ultra
Roborock Qrevo Edge 2 Flow
Roborock Saros 20
Base width Different
?
Dreame X50s Ultra: 390 mm Roborock Qrevo Edge 2 Flow: 402 mm Roborock Saros 20: 381 mm
Base height Different
?
Dreame X50s Ultra: 499 mm Roborock Qrevo Edge 2 Flow: 451 mm Roborock Saros 20: 488 mm
Base depth Different
?
Dreame X50s Ultra: 423 mm Roborock Qrevo Edge 2 Flow: 470 mm Roborock Saros 20: 475 mm

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Best Score Dreame X50s Ultra View on Amazon Best value for money Roborock Qrevo Edge 2 Flow View on Amazon Roborock Saros 20 View on Amazon

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