Products
Roborock S4
Roborock S4 Max
Tested using Methodology v0.6
Updated Jan 20, 2025 05:03 PM
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Tested using Methodology v0.7
Updated Jan 20, 2025 06:51 PM
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Vacuum Type
Robot
Bagless
Yes
Cordless
Yes
Anti-Allergy Filter (HEPA)
No
Wet Compatible
No
Vacuum Type
Robot
Bagless
Yes
Cordless
Yes
Anti-Allergy Filter (HEPA)
No
Wet Compatible
No
Our Verdict
Roborock S4
Roborock S4 Max
The Roborock S4 Max and the Roborock S4 are very similarly designed vacuums, and you may prefer either one, depending on what surface types you have in your home. The Max can climb onto and clean high-pile carpets. It has a longer maximum battery life, and it's also lighter, which makes it more portable. On the other hand, the S4 has a much better performance on low-pile carpets and picks up more debris, like cereal from bare floors, when its dirt compartment is partially full.
Variants
- S4
- S4 Max (Black)
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Standard
S4
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Black
S4 Max
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Standard
S4
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Black
S4 Max
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Standard
S4
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Black
S4 Max
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Main Differences for
Bare Floor
Bare Floor
Threshold
Bare Floor
7.6
7.6
Bare Floor Performance (Hardwood, Laminate, Tiles)
8.5
9.3
User Maintenance
7.0
6.0
Full Comparison
Design
Build Quality
8.0
8.0
Vacuum Type
Robot
Robot
Build Quality Picture
User Maintenance
7.0
6.0
Maintenance Picture
Brushroll Cleaning Video
Recurring Cost
6.0
5.0
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
Storing
8.9
8.9
Storing Picture
Height
5.04" (12.8 cm)
3.98" (10.1 cm)
Width
13.90" (35.3 cm)
13.90" (35.3 cm)
Depth
16.46" (41.8 cm)
16.46" (41.8 cm)
Cord Storing
Not Needed
Not Needed
On-Board Tool Storage
Not needed
Not needed
Vacuum Rack/Station
Yes
Yes
Dirt Compartment
7.1
7.1
Dirt Compartment Picture
Bagless
Yes
Yes
Volume
0.11 gal (0.42 L)
0.11 gal (0.42 L)
Full Indicator
Yes
Yes
Bag Included
No Bag Needed
No Bag Needed
In The Box
In The Box Picture
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
Portability
7.8
8.0
Total Weight
8.48 lbs (3.85 kg)
7.21 lbs (3.27 kg)
Weight In Hand
0.00 lbs (0.00 kg)
0.00 lbs (0.00 kg)
Carrying handle
No
No
Battery
9.1
8.8
Minimum Battery Life
116 min
112 min
Maximum Battery Life
199 min
207 min
Recharge Time
183 min
300 min
Recharge Dock
Yes
Yes
Battery Life Indicator
Yes
Yes
Removable Batteries
No
No
Quality Of Life Features
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
Tools And Brushes
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
Alternative Configuration
Alternative Configuration Photo 1
Alternative Configuration Photo 2
Blower Mode
No
No
Performance
Bare Floor Performance (Hardwood, Laminate, Tiles)
8.5
9.3
Setting Used
"Balanced"
"Max"
Bare Floor Large Debris Graph
Large Debris at 0 gal (0L)
96%
99%
Large Debris at 0.07 gal (0.25L)
52%
78%
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
Small Debris at 0 gal (0L)
99%
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
Low-Pile Carpet Performance
4.9
4.8
Setting Used
"Max"
"Max"
Low Carpet Large Debris Graph
Large Debris at 0 gal (0L)
40%
40%
Large Debris at 0.07 gal (0.25L)
≈ 39%
≈ 39%
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
Small Debris at 0 gal (0L)
24%
24%
Small Debris at 0.07 gal (0.25L)
≈ 23%
≈ 23%
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
High-Pile Carpet Performance
0.0
6.0
Setting Used
Untestable
"Max"
High Carpet Large Debris Graph
Large Debris at 0 gal (0L)
0%
46%
Large Debris at 0.07 gal (0.25L)
N/A
≈ 45%
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
Small Debris at 0 gal (0L)
0%
26%
Small Debris at 0.07 gal (0.25L)
N/A
≈ 25%
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
Pet Hair Floor Performance
8.1
8.1
Pet Hair Graph
Bare Floor
100%
99%
Low-Pile Carpet
92%
68%
High-Pile Carpet
0%
68%
Suction
0.1
0.0
Suction Video
Maximum Hose Suction
N/A
Maximum Head Suction
0.2 inH₂O (0.05 kPa)
0.1 inH₂O (0.02 kPa)
Setting Used For Maximum
"Max"(App)
Normal Head Suction
0.0 inH₂O (0.01 kPa)
0.0 inH₂O (0.01 kPa)
Setting Used For Normal
"Balanced" (App)
"Balanced" (App)
Hose Diameter
N/A
N/A
Airflow
3.6
Maximum Airflow Video
Maximum Hose Airflow
19.1 CFM (0.5 m³/min)
Noise
9.3
9.2
Noise Video
Bare Floor
61.5 dBA
63.2 dBA
Low-Pile Carpet
61.7 dBA
63.5 dBA
Maneuverability
8.0
8.0
Maneuverability Video
Pet Hair Furniture Performance
0.0
0.0
Sofa Pickup Video
Sofa Pickup Post Test
Air Quality
Sealing Quality Video
Anti-Allergy Filter (HEPA)
No
No
Cracks
5.0
4.5
Cracks Video
Wood Cracks Post Test
Stains
1.0
1.0
Stain Video
Stain Pickup Post Test
Water
0.0
0.0
Wet Compatible
No
No
Water Video
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
Companion App Automation
8.0
8.5
Companion App Screen Grabs
App Name
Roborock
Roborock
iOS Availability
Yes
Yes
Android Availability
Yes
Yes
Software Boundary Markers (No Go Zones)
Yes
Yes
App Scheduled Start
Yes
Yes
App Cycle Control
Yes
Yes
Navigation Control within App
Yes
Yes
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S4
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S4 Max
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S4
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S4 Max
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S4
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S4 Max
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Roborock S4
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Roborock S4 vs Roborock S4 Max: Main Discussion
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