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  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Build Quality
    2. User Maintenance
    3. Recurring Cost
    4. Storing
    5. Dirt Compartment
    6. In The Box
    7. Range
    8. Portability
    9. Battery
    10. Quality Of Life Features
    11. Tools And Brushes
    12. Alternative Configuration
  5. Performance
    1. Bare Floor Performance (Hardwood, Laminate, Tiles)
    2. Low-Pile Carpet Performance
    3. High-Pile Carpet Performance
    4. Pet Hair Floor Performance
    5. Suction
    6. Airflow
    7. Noise
    8. Maneuverability
    9. Pet Hair Furniture Performance
    10. Air Quality
    11. Cracks
    12. Stains
    13. Water
  6. Automation
    1. Physical Automation
    2. Companion App Automation
  7. Comments

Roborock S6 vs Roborock E4

Side-by-Side Comparison

Products

Roborock S6
Roborock E4

Tested using Methodology v0.7

Updated Jan 22, 2025 10:31 PM

Amazon.com

Tested using Methodology v0.7

Updated Jan 16, 2025 01:04 AM

SEE PRICE
Amazon.com
Roborock S6 Picture
Roborock E4 Picture

Variants

  • S6 (Black)
  • S6 (White)
  • E4 (Black)

Our Verdict

Roborock S6

Roborock E4

The Roborock S6 and the Roborock E4 perform very similarly overall. The E4 is slightly more compact, easier to carry, and does a little bit better on high-pile carpets. Meanwhile, the S6 features a sturdier design, a more advanced LIDAR navigation system, and superior maneuverability. The S6 features a mop attachment to clean up wet messes, while a mopping kit is available for the E4, though we don't currently test the effectiveness of either feature. 

0 

Main Differences for
Bare Floor

Threshold 

0.10

Bare Floor 

7.7
7.9

Bare Floor Performance (Hardwood, Laminate, Tiles) 
 

9.1
9.9

Full Comparison

Design

Build Quality 
 

8.5
8.0

Vacuum Type 
 

Robot
Robot

Build Quality Picture  

Roborock S6 Build Quality Picture
Roborock E4 Build Quality Picture
Show text

User Maintenance 
 

6.5
6.5

Maintenance Picture  

Roborock S6 Maintenance Picture
Roborock E4 Maintenance Picture

Brushroll Cleaning Video  

Show text

Recurring Cost 
 

5.0
6.0

Recurring Cost Picture  

Roborock S6 Recurring Cost Picture
Roborock E4 Recurring Cost Picture

Bag Part Number  

No bag
No bag

Filter Part Number  

E11
E11

HEPA Filter Part Number  

No HEPA Filter
No HEPA Filter
Show text

Storing 
 

8.8
8.9

Storing Picture  

Roborock S6 Storing Picture
Roborock E4 Storing Picture

Height 
 

4.72" (12.0 cm)
3.98" (10.1 cm)

Width 
 

15.35" (39.0 cm)
13.78" (35.0 cm)

Depth 
 

16.93" (43.0 cm)
15.75" (40.0 cm)

Cord Storing 
 

Not Needed
Not Needed

On-Board Tool Storage 
 

Not needed
Not needed

Vacuum Rack/Station 
 

Yes
Yes
Show text

Dirt Compartment 
 

7.1
7.4

Dirt Compartment Picture  

Roborock S6 Dirt Compartment Picture
Roborock E4 Dirt Compartment Picture

Bagless 
 

Yes
Yes

Volume 
 

0.11 gal (0.42 L)
0.15 gal (0.55 L)

Full Indicator 
 

Yes
Yes

Bag Included 
 

No Bag Needed
No Bag Needed
Show text

In The Box 
 

In The Box Picture  

Roborock S6 In The Box Picture
Roborock E4 In The Box Picture
Show text

Range 
 

10
10

Cordless 
 

Yes
Yes

Cord Length 
 

N/A
N/A

Hose Length 
 

N/A
N/A

Minimum Wand Length 
 

N/A
N/A

Maximum Wand Length 
 

N/A
N/A

Total Range 
 

N/A
N/A
Show text

Portability 
 

7.9
8.1

Total Weight 
 

7.72 lbs (3.50 kg)
6.61 lbs (3.00 kg)

Weight In Hand 
 

0.00 lbs (0.00 kg)
0.00 lbs (0.00 kg)

Carrying handle 
 

No
No
Show text

Battery 
 

9.1
9.0

Minimum Battery Life 
 

111 min
114 min

Maximum Battery Life 
 

194 min
195 min

Recharge Time 
 

169 min
232 min

Recharge Dock 
 

Yes
Yes

Battery Life Indicator 
 

Yes
Yes

Removable Batteries 
 

No
No
Show text

Quality Of Life Features 
 

Picture Of Controls  

Roborock S6 Picture Of Controls
Roborock E4 Picture Of Controls

Rotating Head 
 

No
No

Power Adjustment 
 

Yes
Yes

Self-Propelled 
 

Yes
Yes

Headlights 
 

No
No

Easy On/Off 
 

Yes
Yes

Head Surface Type Adjustment 
 

Only Automatic
Only Automatic
Show text

Tools And Brushes 
 

Tools And Brush Picture  

Roborock S6 Tools And Brush Picture
Roborock E4 Tools And Brush Picture

Brushroll 
 

Yes
Yes

Brushroll On/Off 
 

No
No

Removable Brushroll 
 

Yes
Yes

Turbo Brush 
 

No
No

Crevice Tool 
 

No
No

Upholstery Tool 
 

No
No

Soft Bristle Brush 
 

No
No

Hard Bristle Brush 
 

No
No

Extension Wand 
 

No
No

Ceiling Fan Tool 
 

No
No

Pet Grooming Tool 
 

No
No
Show text

Alternative Configuration 
 

Alternative Configuration Photo 1  

Roborock S6 Alternative Configuration Photo 1
Roborock E4 Alternative Configuration Photo 1

Alternative Configuration Photo 2  

Roborock S6 Alternative Configuration Photo 2
Roborock E4 Alternative Configuration Photo 2

Blower Mode 
 

No
No
Show text
Performance

Bare Floor Performance (Hardwood, Laminate, Tiles) 
 

9.1
9.9

Setting Used  

"Max"
"Balanced"

Bare Floor Large Debris Graph  

Roborock S6 Bare Floor Large Debris Graph
Roborock E4 Bare Floor Large Debris Graph

Large Debris at 0 gal (0L)  

98%
100%

Large Debris at 0.07 gal (0.25L)  

70%
97%

Large Debris at 0.2 gal (0.75L)  

N/A
N/A

Large Debris at 0.4 gal (1.5L)  

N/A
N/A

Large Debris at 0.8 gal (3L)  

N/A
N/A

Large Debris at 1.6 gal (6L)  

N/A
N/A

Bare Floor Small Debris Graph  

Roborock S6 Bare Floor Small Debris Graph
Roborock E4 Bare Floor Small Debris Graph

Small Debris at 0 gal (0L)  

100%
100%

Small Debris at 0.07 gal (0.25L)  

99%
100%

Small Debris at 0.2 gal (0.75L)  

N/A
N/A

Small Debris at 0.4 gal (1.5L)  

N/A
N/A

Small Debris at 0.8 gal (3L)  

N/A
N/A

Small Debris at 1.6 gal (6L)  

N/A
N/A
Show text

Low-Pile Carpet Performance 
 

5.3
6.1

Setting Used  

"Max"
"MAX"

Low Carpet Large Debris Graph  

Roborock S6 Low Carpet Large Debris Graph
Roborock E4 Low Carpet Large Debris Graph

Large Debris at 0 gal (0L)  

51%
67%

Large Debris at 0.07 gal (0.25L)  

51%
66%

Large Debris at 0.2 gal (0.75L)  

N/A
N/A

Large Debris at 0.4 gal (1.5L)  

N/A
N/A

Large Debris at 0.8 gal (3L)  

N/A
N/A

Large Debris at 1.6 gal (6L)  

N/A
N/A

Low Carpet Small Debris Graph  

Roborock S6 Low Carpet Small Debris Graph
Roborock E4 Low Carpet Small Debris Graph

Small Debris at 0 gal (0L)  

28%
38%

Small Debris at 0.07 gal (0.25L)  

29%
35%

Small Debris at 0.2 gal (0.75L)  

N/A
N/A

Small Debris at 0.4 gal (1.5L)  

N/A
N/A

Small Debris at 0.8 gal (3L)  

N/A
N/A

Small Debris at 1.6 gal (6L)  

N/A
N/A
Show text

High-Pile Carpet Performance 
 

6.3
6.1

Setting Used  

"Max"
"MAX"

High Carpet Large Debris Graph  

Roborock S6 High Carpet Large Debris Graph
Roborock E4 High Carpet Large Debris Graph

Large Debris at 0 gal (0L)  

56%
38%

Large Debris at 0.07 gal (0.25L)  

46%
38%

Large Debris at 0.2 gal (0.75L)  

N/A
N/A

Large Debris at 0.4 gal (1.5L)  

N/A
N/A

Large Debris at 0.8 gal (3L)  

N/A
N/A

Large Debris at 1.6 gal (6L)  

N/A
N/A

High Carpet Small Debris Graph  

Roborock S6 High Carpet Small Debris Graph
Roborock E4 High Carpet Small Debris Graph

Small Debris at 0 gal (0L)  

23%
40%

Small Debris at 0.07 gal (0.25L)  

32%
38%

Small Debris at 0.2 gal (0.75L)  

N/A
N/A

Small Debris at 0.4 gal (1.5L)  

N/A
N/A

Small Debris at 0.8 gal (3L)  

N/A
N/A

Small Debris at 1.6 gal (6L)  

N/A
N/A
Show text

Pet Hair Floor Performance 
 

8.2
8.8

Pet Hair Graph  

Roborock S6 Pet Hair Graph
Roborock E4 Pet Hair Graph

Bare Floor 
 

99%
100%

Low-Pile Carpet 
 

68%
83%

High-Pile Carpet 
 

73%
77%

Suction 
 

0.0
0.0

Suction Video  

Maximum Hose Suction 
 

N/A
N/A

Maximum Head Suction 
 

0.1 inH₂O (0.02 kPa)
0.0 inH₂O (0.01 kPa)

Normal Head Suction 
 

0.0 inH₂O (0.01 kPa)
0.0 inH₂O (0.00 kPa)

Setting Used For Normal  

"Balanced" (App)
"Balanced" (App)

Hose Diameter 
 

N/A
N/A

Airflow 
 

2.4
3.2

Maximum Airflow Video  

Maximum Hose Airflow 
 

11.6 CFM (0.3 m³/min)
16.4 CFM (0.5 m³/min)

Noise 
 

9.5
8.9

Noise Video 
 

Bare Floor 
 

59.3 dBA
66.7 dBA

Low-Pile Carpet 
 

59.6 dBA
67.5 dBA

Maneuverability 
 

8.5
8.0

Maneuverability Video  

Show text

Pet Hair Furniture Performance 
 

0.0
0.0

Sofa Pickup Video  

Sofa Pickup Post Test  

Roborock S6 Sofa Pickup Post Test
Roborock E4 Sofa Pickup Post Test

Air Quality 
 

Sealing Quality Video  

Anti-Allergy Filter (HEPA) 
 

No
No

Cracks 
 

5.0
5.0

Cracks Video  

Wood Cracks Post Test  

Roborock S6 Wood Cracks Post Test
Roborock E4 Wood Cracks Post Test

Stains 
 

4.0
1.0

Stain Video  

Stain Pickup Post Test  

Roborock S6 Stain Pickup Post Test
Roborock E4 Stain Pickup Post Test

Water 
 

0.0
0.0

Wet Compatible 
 

Mopping Only
No

Water Video  

Water Pickup Post Test  

Roborock S6 Water Pickup Post Test
Roborock E4 Water Pickup Post Test
Automation

Physical Automation 
 

7.1
7.1

Automatic Recharging 
 

Yes
Yes

Automatic Bag Emptying 
 

No
No

Pathing Algorithm 
 

Smart
Smart

Physical Boundary Markers 
 

No
No

Scheduled Start Buttons 
 

No
No

Cycle Control Buttons 
 

Onboard Only
Onboard Only

Navigation Control Buttons 
 

Return to Base Only
Return to Base Only
Show text

Companion App Automation 
 

8.5
8.0

Companion App Screen Grabs  

Roborock S6 Companion App Screen Grabs
Roborock E4 Companion App Screen Grabs

App Name 
 

Roborock
Mi Home

iOS Availability 
 

Yes
Yes

Android Availability 
 

Yes
Yes

Software Boundary Markers (No Go Zones) 
 

Yes
No

App Scheduled Start 
 

Yes
Yes

App Cycle Control 
 

Yes
Yes

Navigation Control within App 
 

Yes
Yes
Show text

Roborock S6

Roborock E4

Comments

  1. Comparison

Roborock S6 vs Roborock E4: Main Discussion

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