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Roborock S8 MaxV Ultra vs Saros 20

Which Robot Vacuum Is Better?

    Top
    Main Differences
    Design
      Build QualityUser MaintenanceRecurring CostDimensionsInternal Dirt CompartmentStation Maintenance CapabilitiesIn The BoxBatteryBrushroll And Side BrushQuality-Of-Life Features
    Performance
      Hard Floor PickupHigh-Pile Carpet PickupLow-Pile Carpet PickupPet Hair PickupStain ScrubbingAirflowStain SmearingResidual MoistureNoiseHousehold AdaptabilityObstacle AvoidanceHeight ClearanceThreshold ClearanceAir QualityStainsCracksWater
    Automation
      Physical AutomationCompanion App Automation
    Comments

Products

Roborock S8 MaxV Ultra
Roborock Saros 20

Tested using Methodology v1.1

Updated Jul 20, 2026 05:45 PM

SEE PRICE
Roborock

Tested using Methodology v1.0

Updated Aug 12, 2026 03:22 PM

SEE PRICE
Amazon
Roborock S8 MaxV Ultra Picture

Track

Roborock Saros 20 Picture

Track

Lowest Height Cleared
10.5 cm (4.1'')
Obstacle Avoidance Technology
Camera-Based And Light-Based
Max Threshold Height
1.9 cm (0.7")
Mop Type
Vibrating Pad
Wet Compatible
Mopping Only
Lowest Height Cleared
8.0 cm (3.1'')
Obstacle Avoidance Technology
Camera-Based And Light-Based
Max Threshold Height
3.8 cm (1.5")
Anti-Allergy Filter (HEPA)
No

Our Verdict

Roborock S8 MaxV Ultra

Roborock Saros 20

The Roborock Saros 20 and the Roborock S8 MaxV Ultra are both high-end robot vacuum and mop combos. The Saros 20 is the newer of the two, and it improves on the S8 MaxV Ultra in most areas. Hard floor and carpet pickup are both stronger on the Saros 20, and it improves significantly on threshold clearance and height clearance, fitting under much lower furniture than the S8 MaxV's tall profile allows. The S8 MaxV has an edge when it comes to pet hair pickup, though, because its twin rubber brushrolls do a better job lifting hair from carpet. Obstacle avoidance is comparable on hard floors but unreliable on carpet for both models. 

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0 

Variants

  • S8 MaxV Ultra (Black)
  • S8 MaxV Ultra (White)
  • Saros 20 (Black)

Review

See Roborock S8 MaxV Ultra Review
See Roborock Saros 20 Review
4 
26 

Check Price

Black
S8 MaxV Ultra
SEE PRICE
Amazon
Black
Saros 20
SEE PRICE
Amazon
White
S8 MaxV Ultra
SEE PRICE
Roborock
Black
Saros 20
SEE PRICE
Roborock
 
Black
Saros 20
SEARCH
Walmart.com
 
Black
Saros 20
SEARCH
Lowes.com
 
Black
Saros 20
SEARCH
HomeDepot.com
 
Black
Saros 20
SEARCH
BestBuy.com
 
Black
Saros 20
SEARCH
B&H
Read more

Main Differences for
Multi-Surface Household

Threshold 

0.10

Multi-Surface Household 
 

0.0
0.0
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Full Comparison

Design

Build Quality 
 

N/A
N/A

Build Quality Picture  

Roborock S8 MaxV Ultra Build Quality Picture Sample

SAMPLE

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Roborock Saros 20 Build Quality Picture Sample

SAMPLE

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for pictures & test results

Vacuum & Mop Combo 
 

Locked
Locked

User Maintenance 
 

N/A
N/A

Maintenance Picture  

Roborock S8 MaxV Ultra Maintenance Picture Sample

SAMPLE

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for pictures & test results

Roborock Saros 20 Maintenance Picture Sample

SAMPLE

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for pictures & test results

Brushroll Cleaning Video  

Roborock S8 MaxV Ultra Brushroll Cleaning Video Sample

SAMPLE

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for videos & test results

Roborock Saros 20 Brushroll Cleaning Video Sample

SAMPLE

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for videos & test results

Recurring Cost 
 

N/A
N/A

Recurring Cost Picture  

Roborock S8 MaxV Ultra Recurring Cost Picture Sample

SAMPLE

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Roborock Saros 20 Recurring Cost Picture Sample

SAMPLE

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Bag Part Number  

Locked
Locked

Filter Part Number  

Locked
Locked

HEPA Filter Part Number  

Locked
Locked

Dimensions 
 

Robot Vacuum Dimensions  

Roborock S8 MaxV Ultra Robot Vacuum Dimensions Sample

SAMPLE

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Roborock Saros 20 Robot Vacuum Dimensions Sample

SAMPLE

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Robot Vacuum Height  

Lock cm (Lock")
Lock cm (Lock")

Robot Vacuum Width  

Lock cm (Lock")
Lock cm (Lock")

Robot Vacuum Depth  

Lock cm (Lock")
Lock cm (Lock")

Docking Station Dimensions  

Roborock S8 MaxV Ultra Docking Station Dimensions Sample

SAMPLE

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for pictures & test results

Roborock Saros 20 Docking Station Dimensions Sample

SAMPLE

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for pictures & test results

Docking Station Height  

Lock cm (Lock")
Lock cm (Lock")

Docking Station Width  

Lock cm (Lock")
Lock cm (Lock")

Docking Station Depth  

Lock cm (Lock")
Lock cm (Lock")

Internal Dirt Compartment 
 

N/A
N/A

Dirt Compartment Photo  

Roborock S8 MaxV Ultra Dirt Compartment Photo Sample

SAMPLE

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Roborock Saros 20 Dirt Compartment Photo Sample

SAMPLE

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for pictures & test results

Dirt Compartment Capacity 
 

Lock L
Lock L

Full Indicator 
 

Locked
Locked

Station Maintenance Capabilities 
 

N/A
N/A

Station Photo  

Roborock S8 MaxV Ultra Station Photo Sample

SAMPLE

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Roborock Saros 20 Station Photo Sample

SAMPLE

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for pictures & test results

Auto Empty 
 

Locked
Locked

Bagless Station 
 

Locked
Locked

Dirt Compartment Capacity 
 

Lock L
Lock L

Automatic Tank Refill 
 

Locked
Locked

Detergent Dispenser 
 

Locked

Mop Washing 
 

Locked
Locked

Mop Drying 
 

Locked
Locked

Removable Mop Cleaning Tray 
 

Locked

Self-Cleaning Mop Tray 
 

Locked

In The Box 
 

In The Box Picture  

Roborock S8 MaxV Ultra In The Box Picture Sample

SAMPLE

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Roborock Saros 20 In The Box Picture Sample

SAMPLE

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for pictures & test results

Battery 
 

N/A
N/A

Minimum Battery Life 
 

Lock min
Lock min

Maximum Battery Life 
 

Lock min
Lock min

Recharge Time 
 

Lock min
Lock min

Removable Batteries 
 

Locked
Locked

Brushroll And Side Brush 
 

Brushroll And Tools Photo  

Roborock S8 MaxV Ultra Brushroll And Tools Photo Sample

SAMPLE

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Roborock Saros 20 Brushroll And Tools Photo Sample

SAMPLE

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for pictures & test results

Brushroll Setup 
 

Locked
Locked

Brushroll Type 
 

Locked
Locked

Side Brush Setup 
 

Locked
Locked

Side Brush Type 
 

Locked
Locked

Quality-Of-Life Features 
 

Picture Of Controls  

Roborock S8 MaxV Ultra Picture Of Controls Sample

SAMPLE

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Roborock Saros 20 Picture Of Controls Sample

SAMPLE

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for pictures & test results

Power Adjustment 
 

Locked
Locked

Easy On/Off 
 

Locked
Locked

Surface Type Adjustment 
 

Locked
Locked
Performance

Hard Floor Pickup 
 

N/A
N/A

Hard Floor Pickup Video  

Roborock S8 MaxV Ultra Hard Floor Pickup Video Sample

SAMPLE

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Roborock Saros 20 Hard Floor Pickup Video Sample

SAMPLE

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Hard Floor Pickup Post Test  

Roborock S8 MaxV Ultra Hard Floor Pickup Post Test Sample

SAMPLE

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Roborock Saros 20 Hard Floor Pickup Post Test Sample

SAMPLE

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for pictures & test results

High-Pile Carpet Pickup 
 

N/A
N/A

High-Pile Carpet Pickup Video  

Roborock S8 MaxV Ultra High-Pile Carpet Pickup Video Sample

SAMPLE

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for videos & test results

Roborock Saros 20 High-Pile Carpet Pickup Video Sample

SAMPLE

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High-Pile Carpet Pickup Post Test  

Roborock S8 MaxV Ultra High-Pile Carpet Pickup Post Test Sample

SAMPLE

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for pictures & test results

Roborock Saros 20 High-Pile Carpet Pickup Post Test Sample

SAMPLE

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for pictures & test results

Low-Pile Carpet Pickup 
 

N/A
N/A

Low-Pile Carpet Pickup Video  

Roborock S8 MaxV Ultra Low-Pile Carpet Pickup Video Sample

SAMPLE

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for videos & test results

Roborock Saros 20 Low-Pile Carpet Pickup Video Sample

SAMPLE

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for videos & test results

Low-Pile Carpet Pickup Post Test  

Roborock S8 MaxV Ultra Low-Pile Carpet Pickup Post Test Sample

SAMPLE

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Roborock Saros 20 Low-Pile Carpet Pickup Post Test Sample

SAMPLE

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for pictures & test results

Pet Hair Pickup 
 

N/A
N/A

Pet Hair Pickup Video  

Roborock S8 MaxV Ultra Pet Hair Pickup Video Sample

SAMPLE

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for videos & test results

Roborock Saros 20 Pet Hair Pickup Video Sample

SAMPLE

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for videos & test results

Pet Hair Pickup Post Test  

Roborock S8 MaxV Ultra Pet Hair Pickup Post Test Sample

SAMPLE

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Roborock Saros 20 Pet Hair Pickup Post Test Sample

SAMPLE

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for pictures & test results

Stain Scrubbing 
 

N/A
N/A

Dry Stain Removal Photo  

Roborock S8 MaxV Ultra Dry Stain Removal Photo Sample

SAMPLE

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Roborock Saros 20 Dry Stain Removal Photo Sample

SAMPLE

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for pictures & test results

Dry Stain Removal Analysis Photo  

Roborock S8 MaxV Ultra Dry Stain Removal Analysis Photo Sample

SAMPLE

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Roborock Saros 20 Dry Stain Removal Analysis Photo Sample

SAMPLE

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Mop Type 
 

Locked

Stain Removed After 2 Passes 
 

Lock%

Stain Removed After 3 Passes 
 

Lock%

Airflow 
 

N/A
N/A

Maximum Airflow Video  

Roborock S8 MaxV Ultra Maximum Airflow Video Sample

SAMPLE

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Roborock Saros 20 Maximum Airflow Video Sample

SAMPLE

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for videos & test results

Maximum Head Airflow 
 

Lock CFM (Lock m³/min)

Stain Smearing 
 

N/A
N/A

Stain Smearing Photo  

Roborock S8 MaxV Ultra Stain Smearing Photo Sample

SAMPLE

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Roborock Saros 20 Stain Smearing Photo Sample

SAMPLE

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Stain Smearing Analysis  

Roborock S8 MaxV Ultra Stain Smearing Analysis Sample

SAMPLE

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Roborock Saros 20 Stain Smearing Analysis Sample

SAMPLE

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for pictures & test results

Avg. Clean Area Contamination 
 

Lock%

Residual Moisture 
 

N/A
N/A

Low Water  

Roborock S8 MaxV Ultra Low Water Sample

SAMPLE

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Roborock Saros 20 Low Water Sample

SAMPLE

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for videos & test results

High Water  

Roborock S8 MaxV Ultra High Water Sample

SAMPLE

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for videos & test results

Roborock Saros 20 High Water Sample

SAMPLE

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for videos & test results

Water Left On Floor @ Min Setting 
 

0.0

Water Left On Floor @ Max Setting 
 

0.0

Detergent Use 
 

Locked

Noise 
 

N/A
N/A

Noise Video 
 

Roborock S8 MaxV Ultra Noise Video Sample

SAMPLE

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Roborock Saros 20 Noise Video Sample

SAMPLE

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Bare Floor 
 

Lock dBA
Lock dBA

Low-Pile Carpet 
 

Lock dBA
Lock dBA

Household Adaptability 
 

N/A
N/A

Household Adaptability  

Roborock S8 MaxV Ultra Household Adaptability Sample

SAMPLE

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Roborock Saros 20 Household Adaptability Sample

SAMPLE

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for videos & test results

Obstacle Avoidance 
 

N/A
N/A

Obstacle Avoidance Technology 
 

Locked
Locked

Object Recognition 
 

Locked
Locked

Obstacle Video  

Roborock S8 MaxV Ultra Obstacle Video Sample

SAMPLE

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Roborock Saros 20 Obstacle Video Sample

SAMPLE

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for videos & test results

Bare Floor: Avoidance Rate 
 

Lock%
Lock%

Bare Floor: Intervention Rate 
 

Lock%
Lock%

Carpet: Avoidance Rate 
 

Lock%
Lock%

Carpet: Intervention Rate 
 

Lock%
Lock%

Always Avoided Pet Waste 
 

Locked
Locked

Height Clearance 
 

N/A
N/A

Height Clearance Video  

Roborock S8 MaxV Ultra Height Clearance Video Sample

SAMPLE

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Roborock Saros 20 Height Clearance Video Sample

SAMPLE

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for videos & test results

Lowest Height Cleared 
 

Locked
Locked

Threshold Clearance 
 

N/A
N/A

Low Threshold Video  

Roborock S8 MaxV Ultra Low Threshold Video Sample

SAMPLE

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for videos & test results

Roborock Saros 20 Low Threshold Video Sample

SAMPLE

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for videos & test results

High Threshold Video  

Roborock S8 MaxV Ultra High Threshold Video Sample

SAMPLE

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Roborock Saros 20 High Threshold Video Sample

SAMPLE

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for videos & test results

Max Threshold Height 
 

Lock cm (Lock")
Lock cm (Lock")

Air Quality 
 

Sealing Quality Video  

Roborock S8 MaxV Ultra Sealing Quality Video Sample

SAMPLE

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for videos & test results

Roborock Saros 20 Sealing Quality Video Sample

SAMPLE

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for videos & test results

Anti-Allergy Filter (HEPA) 
 

Locked

Stains 
 

N/A
N/A

Stain Video  

Roborock S8 MaxV Ultra Stain Video Sample

SAMPLE

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for videos & test results

Roborock Saros 20 Stain Video Sample

SAMPLE

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for videos & test results

Stain Pickup Post Test  

Roborock S8 MaxV Ultra Stain Pickup Post Test Sample

SAMPLE

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for pictures & test results

Roborock Saros 20 Stain Pickup Post Test Sample

SAMPLE

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for pictures & test results

Cracks 
 

N/A
N/A

Cracks Video  

Roborock S8 MaxV Ultra Cracks Video Sample

SAMPLE

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for videos & test results

Roborock Saros 20 Cracks Video Sample

SAMPLE

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Wood Cracks Post Test  

Roborock S8 MaxV Ultra Wood Cracks Post Test Sample

SAMPLE

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Roborock Saros 20 Wood Cracks Post Test Sample

SAMPLE

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for pictures & test results

Water 
 

N/A
N/A

Wet Compatible 
 

Locked

Water Video  

Roborock S8 MaxV Ultra Water Video Sample

SAMPLE

Join Now

for videos & test results

Roborock Saros 20 Water Video Sample

SAMPLE

Join Now

for videos & test results

Water Pickup Post Test  

Roborock S8 MaxV Ultra Water Pickup Post Test Sample

SAMPLE

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for pictures & test results

Roborock Saros 20 Water Pickup Post Test Sample

SAMPLE

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for pictures & test results

Automation

Physical Automation 
 

N/A
N/A

Recharge And Resume 
 

Locked
Locked

Pathing Algorithm 
 

Locked
Locked

Physical Boundary Markers 
 

Locked
Locked

Scheduled Start Buttons 
 

Locked
Locked

Cycle Control Buttons 
 

Locked
Locked

Navigation Control Buttons 
 

Locked
Locked

Companion App Automation 
 

N/A
N/A

Companion App Screen Grabs  

Roborock S8 MaxV Ultra Companion App Screen Grabs Sample

SAMPLE

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Roborock Saros 20 Companion App Screen Grabs Sample

SAMPLE

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for pictures & test results

App Name 
 

Locked
Locked

Software Boundary Markers (No-Go Zones) 
 

Locked
Locked

App Scheduled Start 
 

Locked
Locked

App Cycle Control 
 

Locked
Locked

Navigation Control Within App 
 

Locked
Locked

Check Price

Black
S8 MaxV Ultra
SEE PRICE
Amazon
Black
Saros 20
SEE PRICE
Amazon
White
S8 MaxV Ultra
SEE PRICE
Roborock
Black
Saros 20
SEE PRICE
Roborock
 
Black
Saros 20
SEARCH
Walmart.com
 
Black
Saros 20
SEARCH
Lowes.com
 
Black
Saros 20
SEARCH
HomeDepot.com
 
Black
Saros 20
SEARCH
BestBuy.com
 
Black
Saros 20
SEARCH
B&H
Back to Top

Roborock S8 MaxV Ultra

Roborock Saros 20

Comments

  1. Comparison
 • Posted 1 month ago

Roborock S8 MaxV Ultra vs Roborock Saros 20: Main Discussion

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