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Roomba J7 vs S9 Comparison Review

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iRobot Roomba j7 vs. iRobot Roomba s9

This comparison review seeks to find out whether or not the latest release from iRobot, the J7, has matched the superiority of the Roomba S9.

Just like other robot vacuum brands, iRobot updates its product portfolio frequently with much better models and, at times, upgrades to the entry-level models. Recently, the company unveiled the Roomba J7 and J7+. With the new additions, buyers can be in a dilemma on which model to go for as they don’t know what makes the two different.

This article has compared all the critical aspects of these two vacuums, from their design and cleaning performance to autonomy and smart features.

Comparison Table

iRobot Roomba j7 (7150)...
iRobot Roomba S9 (9150)...
Star Rating
-
-
Dimensions
13.34 x 13.3 x 3.4 inches
12.25" x 12.25" x 3.5"
Weight
7.5 pounds
8.2 pounds
Suction Power
1700 Pa
2200 Pa
Navigation
Brand new Genius Technology and PrecisionVision Navigation
iAdapt 3.0, vSLAM and Mapping
Dirt Detection
Filter
HEPA-style
High-Efficiency filter and Anti-Allergen System
Dustbin
0.5 L
0.3 L
Mopping
Auto Dirt Disposal
Runtime
100 minutes
120 minutes
WiFi Connectivity
iRobot Roomba j7 (7150)...
Star Rating
-
Dimensions
13.34 x 13.3 x 3.4 inches
Weight
7.5 pounds
Suction Power
1700 Pa
Navigation
Brand new Genius Technology and PrecisionVision Navigation
Dirt Detection
Filter
HEPA-style
Dustbin
0.5 L
Mopping
Auto Dirt Disposal
Runtime
100 minutes
WiFi Connectivity
iRobot Roomba S9 (9150)...
Star Rating
-
Dimensions
12.25" x 12.25" x 3.5"
Weight
8.2 pounds
Suction Power
2200 Pa
Navigation
iAdapt 3.0, vSLAM and Mapping
Dirt Detection
Filter
High-Efficiency filter and Anti-Allergen System
Dustbin
0.3 L
Mopping
Auto Dirt Disposal
Runtime
120 minutes
WiFi Connectivity

Which one to choose Roomba J7 or Roomba S9?

4 reasons to choose Roomba S9

  • Anti-allergen system: High-efficiency filter of Roomba S9 keeps 99.99% allergens and keeps fresh air in the house.
  • Extra-large dustbin: 550 ml dustbin is convenient for manual cleaning after each run or automatic with Auto Disposal Unit.
  • Perfect cleaning of edges: PerfectEdge Technology of Roomba S9 with advanced sensors ensures deep cleaning of corners and edges.
  • Excellent navigation: Updated vSLAM navigation and Smart Mapping with more than 200.00 data points to create detailed maps and perform cleaning in the most required areas.

Cleaning Test Results

As usual, we test all the robot vacuums we review. The S9 and J7 are not exceptions. Below is a chart showing how the two Roombas compare in terms of cleaning in a real household setting.

Roomba j7 vs s9 Cleaning Test Results on carpets

Roomba j7 vs s9 Cleaning Test Results on bare floor

verdict

As said earlier, S9 has a more powerful motor, so the performance during tests on carpets and bare floors is better than J7. So, S9 is the winner.

David

Will the new Roomba J7 work properly in total darkness (no daylight or artificial light)?

Richard Harrison

Hi, David! Sorry for the delay in responding and thank you for your question! Roomba J7 deals perfectly with dark zones (like dangerous top stairs and potential falling situations). However, there is no information or real users’ tests at our disposal on its work in total darkness.

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