Comparison

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

Detailed Technical Comparison

Best value for money

Dreame L40s Pro Ultra

8.1
Overall score
View on Amazon

Dreame X50 Ultra Complete

8.4
Overall score
View on Amazon
Best Score

Roborock Saros 20

8.6
Overall score
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
Dreame X50 Ultra Complete
Overall score 8.4
Power and Battery 6.8
Brushing System 7.9
Mopping System 7.8
Cleaning Base 8.4
Navigation and Intelligence 9.5
Roborock Saros 20
Overall score 8.6
Power and Battery 8.6
Brushing System 6.7
Mopping System 8.7
Cleaning Base 8.2
Navigation and Intelligence 8.2

Detailed Technical Comparison

Key features organised by category

General Information

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

Power and Battery

Dreame L40s Pro Ultra
Dreame X50 Ultra Complete
Roborock Saros 20
Suction power Different
?
Dreame L40s Pro Ultra: 19.000 Pa Dreame X50 Ultra Complete: 20.000 Pa Roborock Saros 20: 36.000 Pa
Battery capacity Different
?
Dreame L40s Pro Ultra: 5.200 mAh Dreame X50 Ultra Complete: 6.400 mAh Roborock Saros 20: 6.400 mAh
Declared runtime Different
?
Dreame L40s Pro Ultra: 220 min Dreame X50 Ultra Complete: 180 mins Roborock Saros 20: —
Fast battery charging
?
Dreame L40s Pro Ultra: Sí Dreame X50 Ultra Complete: Sí Roborock Saros 20: Sí

Brushing System

Dreame L40s Pro Ultra
Dreame X50 Ultra Complete
Roborock Saros 20
Main brush Different
?
Dreame L40s Pro Ultra: Dual HyperStream Anti-Tangle Hair Brush Dreame X50 Ultra Complete: Dual HyperStream Anti-Tangle Hair Brush Roborock Saros 20: DuoDivide Anti-Tangle Hair Brush
Liftable main brush
?
Dreame L40s Pro Ultra: Sí Dreame X50 Ultra Complete: Sí Roborock Saros 20: Sí
Liftable side brush
?
Dreame L40s Pro Ultra: Sí Dreame X50 Ultra Complete: Sí Roborock Saros 20: Sí
Extendable side brush
?
Dreame L40s Pro Ultra: Sí Dreame X50 Ultra Complete: Sí Roborock Saros 20: Sí
Anti-tangle side brush
?
Dreame L40s Pro Ultra: Sí Dreame X50 Ultra Complete: Sí Roborock Saros 20: Sí
Skirting board brush
?
Dreame L40s Pro Ultra: No Dreame X50 Ultra Complete: No Roborock Saros 20: No

Mopping System

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

Cleaning Base

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

Navigation and Intelligence

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

Advanced Features

Dreame L40s Pro Ultra
Dreame X50 Ultra Complete
Roborock Saros 20
Ability to overcome steps Different
?
Dreame L40s Pro Ultra: Single step 22 mm - Double step 40 mm Dreame X50 Ultra Complete: Single step 42 mm - Double step 60 mm Roborock Saros 20: Single step 45 mm - Double step 88 mm
Robotic arm
?
Dreame L40s Pro Ultra: No Dreame X50 Ultra Complete: No Roborock Saros 20: No
Integrated own voice assistant
?
Dreame L40s Pro Ultra: Sí Dreame X50 Ultra Complete: Sí Roborock Saros 20: Sí
Compatible with voice assistants (Alexa, Google Home...)
?
Dreame L40s Pro Ultra: Sí Dreame X50 Ultra Complete: Sí Roborock Saros 20: Sí
Matter compatible
?
Dreame L40s Pro Ultra: Sí Dreame X50 Ultra Complete: Sí Roborock Saros 20: Sí

Robot Tanks

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

Robot Dimensions

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

Base Dimensions

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

Already decided which one to buy?

Buy directly on Amazon and receive it in 24-48h with Prime delivery

Best value for money Dreame L40s Pro Ultra View on Amazon Dreame X50 Ultra Complete View on Amazon Best Score Roborock Saros 20 View on Amazon

Have questions about which robot to choose?

Join our Telegram community where we answer all your questions about robot vacuum cleaners

Join Telegram Group

Ready to buy?

Take advantage of current Amazon prices with Prime delivery

Best value for money Dreame L40s Pro Ultra View on Amazon Dreame X50 Ultra Complete View on Amazon Best Score Roborock Saros 20 View on Amazon

Want to compare these robots with other models?

View Comparison

Comparisons in Similar Range

Roborock Qrevo Curv 2 Pro vs Roborock Saros 10R

→

Dreame Aqua 10 Ultra Roller vs Roborock Saros 10R

→

Dreame Aqua 10 Ultra Roller vs Dreame L50s Pro Ultra

→

Dreame L50s Pro Ultra vs Roborock Saros 10R

→

Dreame Aqua 10 Ultra Roller vs Dreame Matrix10 Ultra

→

Roborock Qrevo Curv vs Roborock Qrevo CurvX

→

Robots in Similar Price Range

Mova Mova P50s Ultra

→

Roborock Roborock Qrevo Curv 2 Pro

→

Dreame Dreame L50s Pro Ultra

→

Dreame Dreame L60 Ultra CE

→

DJI DJI Romo S (Blanco)

→

Narwal Narwal Freo 20

→

Most Popular Comparisons

#1
Dreame
VS

Dreame L10s Ultra Gen 2 vs Dreame L10s Ultra Gen 3

→
#2
Roborock
VS

Roborock Qrevo Curv 2 Flow vs Roborock Saros 10R

→
#3
Dreame
VS

Dreame L40 Ultra AE vs Dreame L50 Ultra AE

→
#4
Dreame
VS

Dreame L50 Ultra AE vs Dreame L50s Pro Ultra

→
#5
Dreame
VS

Dreame L40 Ultra vs Dreame L40s Pro Ultra

→
#6
Dreame
VS

Dreame L40s Pro Ultra vs Dreame L50 Pro Ultra

→
#7
Dreame
VS

Dreame L10s Ultra Gen 3 vs Dreame L40 Ultra AE

→
#8
Dreame
VS

Dreame Aqua 10 Ultra Roller vs Dreame Aqua10 Ultra Track Complete

→
#9
Dreame
VS VS

Dreame L40 Ultra vs Dreame L40 Ultra AE vs Dreame L40s Pro Ultra

→
#10
Dreame
VS VS

Dreame L10s Ultra Gen 3 vs Dreame L40 Ultra AE vs Dreame L40s Pro Ultra

→
#11
Dreame
VS

Dreame L50 Pro Ultra vs Dreame X50 Ultra Complete

→
#12
Dreame
VS

Dreame L50 Pro Ultra vs Dreame L50 Ultra AE

→

Ready to get the Dreame L40s Pro Ultra o el Dreame X50 Ultra Complete?

Get them now at the best price on Amazon

Buy Dreame L40s Pro Ultra View on Amazon Buy Dreame X50 Ultra Complete View on Amazon Buy Roborock Saros 20 View on Amazon

As an Amazon Associate, I earn from qualifying purchases.