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- Table of Contents
- Top
- Main Differences
- Design
- Performance
- Automation
- To Be Deleted
- Comments
iRobot Roomba S9 vs Roborock S8+/S8
Side-by-Side Comparison
Products
iRobot Roomba S9
Roborock S8+/S8
Tested using Methodology v0.8
Updated Apr 07, 2025 01:52 PM
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Amazon.comTested using Methodology v1.0
Updated Apr 15, 2025 02:42 PM
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Amazon.com
Wet CompatibleNo
Anti-Allergy Filter (HEPA)Yes
Wet CompatibleMopping Only
Lowest Height Cleared10.0 cm (3.9'')
Obstacle Detection Sensor3D Structured Light
Max Threshold Height1.9 cm (0.7")
Anti-Allergy Filter (HEPA)No
Variants
- Roomba S9 (Black)
- Roomba S9+ (Black)
- S8+ (Black)
- S8 (Black)
- S8+ (White)
- S8 (White)
Our Verdict
iRobot Roomba S9
Roborock S8+/S8
The Roborock S8 is better than the iRobot Roomba S9. The S8 has both LIDAR and front-facing optical sensors, allowing for quick and precise room mapping, even in the dark, and real-time hazard avoidance capability. The S8 is also equipped with an impressive mopping system that deals with stains on hard floors. Both vacuums have cleaning heads with twin rubber rollers that do a fantastic job of handling pet hair and are easy to clean. That said, the iRobot does a much better job of sealing in allergens like pet dander. It also clears away more debris on most floor surfaces.
Check Price
Black
Roomba S9
SEE PRICE
Amazon.comBlack
S8+
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Amazon.comBlack
Roomba S9+
SEE PRICE
Amazon.comBlack
S8
SEE PRICE
Amazon.comWhite
S8+
SEE PRICE
Amazon.comWhite
S8
SEE PRICE
Amazon.comMain Differences forMulti-Surface Household
Multi-Surface Household
Threshold
Multi-Surface Household
7.2
Full Comparison
Design
Build Quality
8.5
8.5
Build Quality Picture
Vacuum & Mop Combo
No
Yes
User Maintenance
7.5
7.5
Maintenance Picture
Brushroll Cleaning Video
Recurring Cost
4.5
4.5
Recurring Cost Picture
Bag Part Number
No bag
Roborock Disposable Dust Bag
Filter Part Number
4643682
E11
HEPA Filter Part Number
4643682
No HEPA Filter
Dimensions
Robot Vacuum Dimensions
Robot Vacuum Height
9.6 cm (3.8")
9.9 cm (3.9")
Robot Vacuum Width
31.6 cm (12.4")
35.1 cm (13.8")
Robot Vacuum Depth
31.6 cm (12.4")
35.0 cm (13.8")
Docking Station Dimensions
Docking Station Height
10.7 cm (4.2")
42.5 cm (16.7")
Docking Station Width
25.9 cm (10.2")
30.3 cm (11.9")
Docking Station Depth
36.0 cm (14.2")
42.2 cm (16.6")
Internal Dirt Compartment
8.1
5.6
Dirt Compartment Photo
Dirt Compartment Capacity
0.50 L
0.25 L
Full Indicator
Yes
No
Station Maintenance Capabilities
0.0
6.4
Station Photo
Auto Empty
No
Yes
Bagless Station
No Dirt Compartment
No
Dirt Compartment Capacity
0.00 L
2.50 L
Automatic Tank Refill
No
No
Mop Washing
No
No
Mop Drying
No
No
In The Box
In The Box Picture
Battery
9.2
8.9
Minimum Battery Life
49 min
90 min
Maximum Battery Life
155 min
235 min
Recharge Time
92 min
261 min
Removable Batteries
Yes
No
Quality-Of-Life Features
Picture Of Controls
Power Adjustment
Yes
Yes
Easy On/Off
Yes
Yes
Surface Type Adjustment
Only Automatic
Manual And Automatic
Brushroll And Tools
Brushroll And Tools Photo
Brushroll Setup
Dual
Dual
Brushroll Type
Rubber
Rubber
Side Brush Setup
Single
Single
Side Brush Type
Fixed
Fixed
Performance
Hard Floor Pickup
8.5
7.5
Hard Floor Pickup Video
Hard Floor Pickup Post Test
High-Pile Carpet Pickup
8.0
7.5
High-Pile Carpet Pickup Video
High-Pile Carpet Pickup Post Test
Low-Pile Carpet Pickup
7.5
7.0
Low-Pile Carpet Pickup Video
Low-Pile Carpet Pickup Post Test
Pet Hair Pickup
7.5
8.0
Pet Hair Pickup Video
Pet Hair Pickup Post Test
Suction
5.7
Suction Video
Maximum Head Suction
0.2 inH₂O (0.05 kPa)
Normal Head Suction
0.0 inH₂O (0.01 kPa)
Setting Used For Normal
"Detailed Clean", (App)
Airflow
8.2
7.8
Maximum Airflow Video
Maximum Head Airflow
16.0 CFM (0.5 m³/min)
14.1 CFM (0.4 m³/min)
Noise
7.0
6.4
Noise Video
Bare Floor
65.2 dBA
65.6 dBA
Low-Pile Carpet
64.7 dBA
68.5 dBA
Household Adaptability
8.5
7.5
Household Adaptability
Obstacle Avoidance
5.4
Obstacle Detection Sensor
3D Structured Light
Object Recognition
Yes
Obstacle Video
Bare Floor: Avoidance Rate
73%
Bare Floor: Intervention Rate
7%
Carpet: Avoidance Rate
0%
Carpet: Intervention Rate
58%
Always Avoided Pet Waste
No
Height Clearance
6.0
Height Clearance Video
Lowest Height Cleared
10.0 cm (3.9'')
Threshold Clearance
7.0
Low Threshold Video
High Threshold Video
Max Threshold Height
1.9 cm (0.7")
Air Quality
Sealing Quality Video
Anti-Allergy Filter (HEPA)
Yes
No
Cracks
4.5
5.0
Cracks Video
Wood Cracks Post Test
Stains
1.0
6.5
Stain Video
Stain Pickup Post Test
Water
0.0
0.0
Wet Compatible
No
Mopping Only
Water Video
Water Pickup Post Test
Automation
Physical Automation
8.9
9.4
Recharge And Resume
Yes
Yes
Pathing Algorithm
Smart
Smart
Physical Boundary Markers
No
No
Scheduled Start Buttons
No
Yes
Cycle Control Buttons
On-Board Only
On-Board Only
Navigation Control Buttons
Return To Base Only
Return To Base Only
Companion App Automation
8.0
9.5
Companion App Screen Grabs
App Name
iRobot HOME
Roborock
Software Boundary Markers (No-Go Zones)
Yes
Yes
App Scheduled Start
Yes
Yes
App Cycle Control
Yes
Yes
Navigation Control Within App
No
Yes
To Be Deleted
Check Price
Black
Roomba S9
SEE PRICE
Amazon.comBlack
S8+
SEE PRICE
Amazon.comBlack
Roomba S9+
SEE PRICE
Amazon.comBlack
S8
SEE PRICE
Amazon.comWhite
S8+
SEE PRICE
Amazon.comWhite
S8
SEE PRICE
Amazon.com
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iRobot Roomba S9
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iRobot Roomba S9 vs Roborock S8+/S8: Main Discussion
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