Get insider access
Preferred store
Your browser is not supported or outdated so some features of the site might not be available.
  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Build Quality
    2. User Maintenance
    3. Recurring Cost
    4. Dimensions
    5. Internal Dirt Compartment
    6. Station Maintenance Capabilities
    7. In The Box
    8. Battery
    9. Quality-Of-Life Features
    10. Brushroll And Tools
  5. Performance
    1. Hard Floor Pick-Up
    2. High-Pile Carpet Pick-Up
    3. Low-Pile Carpet Pick-Up
    4. Pet Hair Pick-Up
    5. Suction
    6. Airflow
    7. Noise
    8. Maneuverability
    9. Air Quality
    10. Cracks
    11. Stains
    12. Water
  6. Automation
    1. Physical Automation
    2. Companion App Automation
  7. To Be Deleted
  8. Comments

iRobot Roomba j7/j7+ vs iRobot Roomba j9+

Side-by-Side Comparison

Products

iRobot Roomba j7/j7+
iRobot Roomba j9+

Tested using Methodology v0.8

Updated Jan 10, 2025 04:45 PM

SEE PRICE
Amazon.com

Tested using Methodology v0.8

Updated Oct 18, 2024 03:52 PM

SEE PRICE
Amazon.com
iRobot Roomba j7/j7+ Picture
iRobot Roomba j9+ Picture
  1. Recommended in 1 article:
  2. iRobot

Variants

  • Roomba j7+ (Graphite)
  • Roomba j7 (Graphite)
  • Roomba j9+ (Ruby Bronze)

Our Verdict

iRobot Roomba j7/j7+

iRobot Roomba j9+

The iRobot Roomba j9+ is essentially an upgraded version of the iRobot Roomba j7/j7+ but with a few added quirks. It has a higher-capacity battery that allows it to run longer on a single charge but at the cost of a slower charging time and a slightly more powerful motor. Only the j9 features a Dirt Detective system that allows it to identify and prioritize cleaning areas that see heavy soiling, but this feature is a little buggy, frequently throttling suction to save power, even when an area could use more cleaning.

0

Check Price

Graphite
Roomba j7+
SEE PRICE
Amazon.com
Ruby Bronze
Roomba j9+
SEE PRICE
Amazon.com
Graphite
Roomba j7
SEE PRICE
Amazon.com
Ruby Bronze
Roomba j9+
SEE PRICE
BestBuy.com
 
Ruby Bronze
Roomba j9+
SEE PRICE
Walmart.com
 
Ruby Bronze
Roomba j9+
B&H

Main Differences for

Threshold 

0.10

Bare Floor 

7.0
6.9

Maneuverability 
 

8.5
7.0

Full Comparison

Design

Build Quality 
 

8.5
8.5

Build Quality Picture  

iRobot Roomba j7/j7+ Build Quality Picture
iRobot Roomba j9+ Build Quality Picture

Vacuum & Mop Combo 
 

No
No

Show text

User Maintenance 
 

7.0
7.0

Maintenance Picture  

iRobot Roomba j7/j7+ Maintenance Picture
iRobot Roomba j9+ Maintenance Picture

Brushroll Cleaning Video  

Show text

Recurring Cost 
 

3.0
4.5

Recurring Cost Picture  

iRobot Roomba j7/j7+ Recurring Cost Picture
iRobot Roomba j9+ Recurring Cost Picture

Bag Part Number  

4640235
4640235

Filter Part Number  

4785883
4785883

HEPA Filter Part Number  

No HEPA Filter
No HEPA Filter

Show text

Dimensions 
 

Robot Vacuum Dimensions  

iRobot Roomba j7/j7+ Robot Vacuum Dimensions
iRobot Roomba j9+ Robot Vacuum Dimensions

Robot Vacuum Height  

8.6 cm (3.4")
8.6 cm (3.4")

Robot Vacuum Width  

33.5 cm (13.2")
33.5 cm (13.2")

Robot Vacuum Depth  

34.0 cm (13.4")
34.0 cm (13.4")

Docking Station Dimensions  

iRobot Roomba j7/j7+ Docking Station Dimensions
iRobot Roomba j9+ Docking Station Dimensions

Docking Station Height  

33.4 cm (13.1")
33.8 cm (13.3")

Docking Station Width  

31.5 cm (12.4")
31.5 cm (12.4")

Docking Station Depth  

39.4 cm (15.5")
40.0 cm (15.7")

Show text

Internal Dirt Compartment 
 

6.1
6.2

Dirt Compartment Photo  

iRobot Roomba j7/j7+ Dirt Compartment Photo
iRobot Roomba j9+ Dirt Compartment Photo

Dirt Compartment Capacity 
 

0.25 L
0.30 L

Full Indicator 
 

Yes
No

Show text

Station Maintenance Capabilities 
 

6.4
6.4

Station Photo  

iRobot Roomba j7/j7+ Station Photo
iRobot Roomba j9+ Station Photo

Auto Empty 
 

Yes
Yes

Bagless Station 
 

No
No

Dirt Compartment Capacity 
 

2.40 L
2.40 L

Automatic Tank Refill 
 

No
No

Mop Washing 
 

No
No

Mop Drying 
 

No
No

Show text

In The Box 
 

In The Box Picture  

iRobot Roomba j7/j7+ In The Box Picture
iRobot Roomba j9+ In The Box Picture

Show text

Battery 
 

9.1
9.2

Minimum Battery Life 
 

102 min
125 min

Maximum Battery Life 
 

102 min
201 min

Recharge Time 
 

137 min
236 min

Removable Batteries 
 

Yes
No

Show text

Quality-Of-Life Features 
 

Picture Of Controls  

iRobot Roomba j7/j7+ Picture Of Controls
iRobot Roomba j9+ Picture Of Controls

Power Adjustment 
 

No
No

Easy On/Off 
 

Yes
Yes

Surface Type Adjustment 
 

Only Automatic
Only Automatic

Show text

Brushroll And Tools 
 

Brushroll And Tools Photo  

iRobot Roomba j7/j7+ Brushroll And Tools Photo
iRobot Roomba j9+ 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 Pick-Up 
 

7.5
7.5

Hard Floor Pick-Up Video  

Hard Floor Pick-Up Post Test  

iRobot Roomba j7/j7+ Hard Floor Pick-Up Post Test
iRobot Roomba j9+ Hard Floor Pick-Up Post Test

Show text

High-Pile Carpet Pick-Up 
 

7.0
7.5

High-Pile Carpet Pick-Up Video  

High-Pile Carpet Pick-Up Post Test  

iRobot Roomba j7/j7+ High-Pile Carpet Pick-Up Post Test
iRobot Roomba j9+ High-Pile Carpet Pick-Up Post Test

Show text

Low-Pile Carpet Pick-Up 
 

7.0
6.5

Low-Pile Carpet Pick-Up Video  

Low-Pile Carpet Pick-Up Post Test  

iRobot Roomba j7/j7+ Low-Pile Carpet Pick-Up Post Test
iRobot Roomba j9+ Low-Pile Carpet Pick-Up Post Test

Show text

Pet Hair Pick-Up 
 

7.0
7.5

Pet Hair Pick-Up Video  

Pet Hair Pick-Up Post Test  

iRobot Roomba j7/j7+ Pet Hair Pick-Up Post Test
iRobot Roomba j9+ Pet Hair Pick-Up Post Test

Show text

Suction 
 

0.0
4.7

Suction Video  

Maximum Head Suction 
 

0.0 inH₂O (0.00 kPa)
0.1 inH₂O (0.03 kPa)

Normal Head Suction 
 

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

Setting Used For Normal  

"Clean"
Medium

Show text

Airflow 
 

5.8
6.0

Maximum Airflow Video  

Maximum Head Airflow 
 

6.0 CFM (0.2 m³/min)
6.4 CFM (0.2 m³/min)

Show text

Noise 
 

7.8
7.7

Noise Video 
 

Bare Floor 
 

63.0 dBA
62.7 dBA

Low-Pile Carpet 
 

57.5 dBA
58.6 dBA

Show text

Maneuverability 
 

8.5
7.0

Maneuverability Video  

Show text

Air Quality 
 

Sealing Quality Video  

Anti-Allergy Filter (HEPA) 
 

No
No

Show text

Cracks 
 

5.5
5.0

Cracks Video  

Wood Cracks Post Test  

iRobot Roomba j7/j7+ Wood Cracks Post Test
iRobot Roomba j9+ Wood Cracks Post Test

Show text

Stains 
 

1.0
1.0

Stain Video  

Stain Pickup Post Test  

iRobot Roomba j7/j7+ Stain Pickup Post Test
iRobot Roomba j9+ Stain Pickup Post Test

Show text

Water 
 

0.0
0.0

Wet Compatible 
 

No
No

Water Video  

Water Pickup Post Test  

iRobot Roomba j7/j7+ Water Pickup Post Test
iRobot Roomba j9+ Water Pickup Post Test

Show text

Automation

Physical Automation 
 

8.9
8.9

Recharge And Resume 
 

Yes
Yes

Pathing Algorithm 
 

Smart
Smart

Physical Boundary Markers 
 

No
No

Scheduled Start Buttons 
 

No
No

Cycle Control Buttons 
 

On-Board Only
On-Board Only

Navigation Control Buttons 
 

Return To Base Only
Return To Base Only

Show text

Companion App Automation 
 

7.5
7.0

Companion App Screen Grabs  

iRobot Roomba j7/j7+ Companion App Screen Grabs
iRobot Roomba j9+ Companion App Screen Grabs

App Name 
 

iRobot HOME
iRobot HOME

Software Boundary Markers (No-Go Zones) 
 

Yes
Yes

App Scheduled Start 
 

Yes
Yes

App Cycle Control 
 

Yes
Yes

Navigation Control Within App 
 

No
No

Show text

To Be Deleted

Check Price

Graphite
Roomba j7+
SEE PRICE
Amazon.com
Ruby Bronze
Roomba j9+
SEE PRICE
Amazon.com
Graphite
Roomba j7
SEE PRICE
Amazon.com
Ruby Bronze
Roomba j9+
SEE PRICE
BestBuy.com
 
Ruby Bronze
Roomba j9+
SEE PRICE
Walmart.com
 
Ruby Bronze
Roomba j9+
B&H

iRobot Roomba j7/j7+

iRobot Roomba j9+

Comments

  1. Comparison

iRobot Roomba j7/j7+ vs iRobot Roomba j9+: Main Discussion

What do you think of these products? Let us know below.


Looking for a personalized buying advice from the RTINGS.com experts? Insiders have direct access to buying advice on our insider forum.

PreviewBack to editorFormat guide
No comments yet, refresh to see new ones