Name: iRobot Roomba Combo j7156
Brand: iRobot

6.9/10

▼Worse than 58% of robot vacuums

6.9

▼Worse than 86%

6.9

▼Worse than 54%

6.6
Mopping
Mopping
6.6/ 10
✕
What it is
Measures active pressurized or sonic mopping, automatic mop lifting on carpets, clean water tank capacity, and dock refill systems.
When it matters
When evaluating how effectively this robot-vacuums meets your specific mopping needs.
Score distribution
▼
<55-66-77-88-99-10
Score components
35.0%
5.2
Mopping system type
25.0%
10
Mop lifting
20.0%
4.0
Auto water refill
20.0%
7.3
Water tank capacity
5.3
Pet homes
Pet homes
5.3/ 10
✕
What it is
Assesses anti-tangle rubber rollers, high Pa suction power, automatic carpet suction boost, and generous dustbin capacity.
When it matters
When you want a versatile robot-vacuums for household browsing, streaming media, and daily family tasks.
Score distribution
▼
<55-66-77-88-99-10
Score components
35.0%
10
Anti-tangle technology
30.0%
1.7
Max suction power
20.0%
4.0
Carpet boost
15.0%
3.2
Dustbin capacity
6.2
Navigation and mapping
Navigation and mapping
6.2/ 10
✕
What it is
Evaluates LiDAR laser or visual SLAM navigation, 3D AI obstacle avoidance, low-profile clearance, and precision multi-floor mapping.
When it matters
When evaluating how effectively this robot-vacuums meets your specific navigation and mapping needs.
Score distribution
▼
<55-66-77-88-99-10
Score components
30.0%
6.3
Primary navigation technology
30.0%
6.6
Obstacle avoidance technology
20.0%
?
Object recognition
20.0%
4.0
Real-time mapping

Technical Specifications of robot vacuum iRobot Roomba Combo j7156

6.9

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Cleaning

6.3

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Max suction power

N. of suction power levels

Motor type

Power

Cleaning modes

Mopping

7.3

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Mopping capability

Mopping system type

Mop pad type

semi-circular

Mop pad material

microfiber

Mop pressure

Navigation

7.9

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Primary navigation technology

Mapping capability

Real-time mapping

Multiple map storage

Map editing

Smart Features

8.9

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App control

App name

iRobot Home

Wi-Fi connectivity

Supported Wi-Fi bands

dual-band

Bluetooth connectivity

Battery

5.0

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Battery capacity

Battery type

Li-ion

Battery voltage

14.4 V

Runtime

Recharge and resume

Design

6.1

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Shape

round

Height

87 mm

Width

338 mm

Length

338 mm

Weight

iRobot Roomba Combo j7156 vs the average robot vacuum

Why is iRobot Roomba Combo j7156 better than the average robot vacuum?

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Has anti-tangle technology
This robot vacuum has anti-tangle technology, while the average robot vacuum does not. 42.8% of robot vacuums offer this feature.
Lifts its mop over carpets
This robot vacuum lifts its mop over carpets, while the average robot vacuum does not lift its mop automatically.
Detects dirtier areas
This robot vacuum detects dirtier areas, while the average robot vacuum does not detect dirtier areas.
Adjusts its cleaning height automatically
This robot vacuum adjusts its cleaning height automatically, while the average robot vacuum uses a fixed cleaning height.
Vibrating mop
This robot vacuum has a vibrating mop, while the average robot vacuum does not. 11.3% of robot vacuums have a vibrating mop.
Dustbin full alert
This robot vacuum alerts you when its dustbin is full, while the average robot vacuum does not. 19.5% of robot vacuums offer a dustbin full indicator.
Has a child lock
This robot vacuum has a child lock, while the average robot vacuum does not. 44.9% of robot vacuums offer this.
Supports cleaning solution
This robot vacuum supports cleaning solution for mopping, while the average robot vacuum does not. 44.8% of robot vacuums support this.

52 m² larger cleaning area
This robot vacuum has a larger maximum cleaning area than the average robot vacuum (232 m² vs 180 m²). The average robot vacuum has a maximum cleaning area of 180 m².
232 m² vs 180 m²
1,260 mAh greater battery capacity
This robot vacuum has a greater battery capacity than the average robot vacuum (4,460 mAh vs 3,200 mAh). The average robot vacuum has a battery capacity of 3,200 mAh.
4,460 mAh vs 3,200 mAh

0.3 m longer power cord
This robot vacuum has a longer power cord than the average robot vacuum (1.8 m vs 1.5 m). The average robot vacuum's power cord is 1.5 m long.
1.8 m vs 1.5 m

Has a child lock
This robot vacuum has a child lock, while the average robot vacuum does not. 44.9% of robot vacuums offer this.

Has anti-tangle technology
This robot vacuum has anti-tangle technology, while the average robot vacuum does not. 42.8% of robot vacuums offer this feature.
Detects dirtier areas
This robot vacuum detects dirtier areas, while the average robot vacuum does not detect dirtier areas.
Adjusts its cleaning height automatically
This robot vacuum adjusts its cleaning height automatically, while the average robot vacuum uses a fixed cleaning height.
Dustbin full alert
This robot vacuum alerts you when its dustbin is full, while the average robot vacuum does not. 19.5% of robot vacuums offer a dustbin full indicator.

Lifts its mop over carpets
This robot vacuum lifts its mop over carpets, while the average robot vacuum does not lift its mop automatically.
Vibrating mop
This robot vacuum has a vibrating mop, while the average robot vacuum does not. 11.3% of robot vacuums have a vibrating mop.
Supports cleaning solution
This robot vacuum supports cleaning solution for mopping, while the average robot vacuum does not. 44.8% of robot vacuums support this.

Why is iRobot Roomba Combo j7156 worse than the average robot vacuum?

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2 fewer cleaning modes
This robot vacuum offers fewer cleaning modes than the average robot vacuum (2 vs 4). The average robot vacuum offers 4 cleaning modes.
2 vs 4
2,300 Pa weaker maximum suction
This robot vacuum has weaker maximum suction than the average robot vacuum (1,700 Pa vs 4,000 Pa). The average robot vacuum has a maximum suction pressure of 4,000 Pa.
1,700 Pa vs 4,000 Pa
Does not boost suction automatically on carpets
This robot vacuum does not boost suction automatically on carpets, while the average robot vacuum boosts suction on carpets automatically.
75 min shorter runtime
This robot vacuum runs for less time per charge than the average robot vacuum (75 min vs 150 min). The average robot vacuum runs for 150 min.
75 min vs 150 min
More basic obstacle avoidance
This robot vacuum uses camera for obstacle avoidance, while the average robot vacuum uses hybrid.
camera vs hybrid
1.3 L smaller auto-empty dust bag
This robot vacuum has a smaller auto-empty dust bag than the average robot vacuum (1.7 L vs 3 L). The average auto-empty dust bag capacity is 3 L.
1.7 L vs 3 L
Does not update its map in real time
This robot vacuum does not update its map in real time, while the average robot vacuum updates its map in real time.
More basic navigation
This robot vacuum uses VSLAM for navigation, while the average robot vacuum uses LiDAR.
VSLAM vs LiDAR

2.69x more expensive
iRobot Roomba Combo j7156 is more expensive than the average robot vacuum (£700 vs £260).
£700 vs £260
6.53x less popular
iRobot Roomba Combo j7156 is less popular than the average robot vacuum (1 vs 6.5).
1 vs 6.53
10.1% worse value for money
iRobot Roomba Combo j7156 has worse value for money than the average robot vacuum (6.89 vs 7.6).
6.89 vs 7.59

75 min shorter runtime
This robot vacuum runs for less time per charge than the average robot vacuum (75 min vs 150 min). The average robot vacuum runs for 150 min.
75 min vs 150 min
1.6 W higher standby power consumption
This robot vacuum draws more power in standby than the average robot vacuum (3.6 W vs 2 W). The average robot vacuum draws 2 W in standby.
3.6 W vs 2 W
0.5 h longer charging time
This robot vacuum takes longer to recharge fully than the average robot vacuum (5 h vs 4.5 h). The average robot vacuum takes 4.5 h.
5 h vs 4.5 h

3 dB louder
This robot vacuum has a higher reported cleaning noise level than the average robot vacuum (68 dB vs 65 dB). The average robot vacuum has a reported noise level of 65 dB.
68 dB vs 65 dB
Older model
This robot vacuum was released in 2022, earlier than the average robot vacuum in 2023. The average release year for robot vacuums is 2023.
2022 vs 2023

More basic obstacle avoidance
This robot vacuum uses camera for obstacle avoidance, while the average robot vacuum uses hybrid.
camera vs hybrid
Does not update its map in real time
This robot vacuum does not update its map in real time, while the average robot vacuum updates its map in real time.
More basic navigation
This robot vacuum uses VSLAM for navigation, while the average robot vacuum uses LiDAR.
VSLAM vs LiDAR
4 mm lower threshold clearance
This robot vacuum can only cross lower thresholds than the average robot vacuum (16 mm vs 20 mm). The average robot vacuum can cross thresholds up to 20 mm high.
16 mm vs 20 mm
Does not show its location in real time
This robot vacuum does not show its location in real time, while the average robot vacuum shows its location in real time.

2 fewer cleaning modes
This robot vacuum offers fewer cleaning modes than the average robot vacuum (2 vs 4). The average robot vacuum offers 4 cleaning modes.
2 vs 4
2,300 Pa weaker maximum suction
This robot vacuum has weaker maximum suction than the average robot vacuum (1,700 Pa vs 4,000 Pa). The average robot vacuum has a maximum suction pressure of 4,000 Pa.
1,700 Pa vs 4,000 Pa
Does not boost suction automatically on carpets
This robot vacuum does not boost suction automatically on carpets, while the average robot vacuum boosts suction on carpets automatically.
1.3 L smaller auto-empty dust bag
This robot vacuum has a smaller auto-empty dust bag than the average robot vacuum (1.7 L vs 3 L). The average auto-empty dust bag capacity is 3 L.
1.7 L vs 3 L
1 fewer suction power levels
This robot vacuum offers fewer suction power levels than the average robot vacuum (3 vs 4). The average robot vacuum offers 4 suction power levels.
3 vs 4
Non-washable filter
This robot vacuum does not have a washable filter, while the average robot vacuum does. 72.5% of robot vacuums have a washable filter.
More basic filter
This robot vacuum uses a high-efficiency filter, while the average robot vacuum uses HEPA.
high-efficiency vs HEPA
Does not include a cleaning tool
This robot vacuum does not include a cleaning tool, while the average robot vacuum includes a cleaning tool.
87 mL smaller dustbin
This robot vacuum has a smaller onboard dustbin than the average robot vacuum (313 mL vs 400 mL). The average robot vacuum has a dustbin capacity of 400 mL.
313 mL vs 400 mL

30 mL less onboard water capacity
This robot vacuum has a smaller onboard water tank than the average robot vacuum (210 mL vs 240 mL). The average robot vacuum's onboard water tank holds 240 mL.
210 mL vs 240 mL

Expert reviews

In-depth analysis and verdict from leading tech publications

chip.de

02/07/2023

Summary of the review

iRobot Roomba Combo j7+ (C755840) review

According to the CHIP review, the iRobot Roomba Combo j7+ (C755840) is a high-performing hybrid robot vacuum (1.8 rating) that excels with exceptional vacuuming power and an innovative, fully retractable mopping arm that protects carpets from moisture. Pros include an automated dirt disposal base and efficient dual rubber brushes, while cons are limited to a slow operating speed and a basic, non-scrubbing mop function.

techtest.org

26/03/2023

Review: iRobot Roomba j7+ Combo, by far the best robot vacuum from iRobot

The Techtest review highlights the iRobot Roomba j7 Combo as iRobot's best robot vacuum and mop to date, driven by its exceptional cleaning performance on both hard floors and carpets alongside an innovative retractable mopping mechanism. Notable pros include top-tier obstacle avoidance and a user-friendly app, while cons involve navigation precision that is slightly less exact than LiDAR alternatives and a relatively high price tag.

stern.de

27/10/2022

Roomba Combo j7+ – the new iRobot vacuum cleaner reviewed by stern

The Stern review highlights the iRobot Roomba Combo j7+ as a highly capable hybrid device, featuring a unique, fully retractable mopping module that effectively prevents carpets from getting wet. Pros include excellent camera-based obstacle avoidance, intelligent routine automation, and a convenient self-emptying Clean Base. However, the device is criticized for a non-vibrating mop that struggles with stubborn stains, limited suction adjustments, a small battery, and an extremely loud self-emptying sequence.

frandroid.com

04/01/2023

iRobot Roomba Combo j7+ review: the brand's first true robot vacuum and mop

Frandroid operates as a comprehensive, highly interactive French technology portal featuring independent buying guides, detailed specifications, and an "Ask" AI assistant. While offering a vibrant community, personalized user feeds, and specialized app navigation, the platform's primary drawback is that content is published exclusively in French, creating a barrier for non-French speakers. You can explore the platform at Frandroid.

fwd.nl

29/10/2022

iRobot Roomba Combo j7+ review: vacuuming and mopping at the same time

According to the FWD.nl review, the iRobot Roomba Combo j7+ is an innovative 2-in-1 device featuring a unique, fully lifting mopping arm that ensures carpets stay dry while cleaning. Its PrecisionVision navigation offers excellent obstacle avoidance, though the mopping function is limited to light surface cleaning rather than deep scrubbing, and it cannot mop without also vacuuming.

consumentenbond.nl

Unknown

iRobot Roomba Combo j7 - Review, Test & Price

The iRobot Roomba Combo j7, reviewed by the Consumentenbond, is an 8.8 cm tall, app-controlled hybrid robot vacuum and mop featuring a 0.31-liter dustbin. A key pro is its fully retractable mopping arm, which lifts the damp pad atop the unit to keep carpets dry, paired with a camera system that excels at detecting and avoiding obstacles like cables. However, cons include the small internal dustbin requiring the pricier self-emptying "+" version to avoid frequent manual emptying, a non-user-replaceable battery, and the lack of an automatic water refill station.

techfi.nl

15/11/2022

iRobot Roomba Combo j7+ review

The TechFi review of the iRobot Roomba Combo j7+ highlights an innovative 2-in-1 robot with a unique retractable mopping arm that ensures carpets stay dry, alongside powerful, camera-based obstacle avoidance. Key advantages include its effective cleaning, self-emptying base, and excellent app, while drawbacks include a reduced 313ml dustbin capacity, high-cost proprietary replacement parts, and initial mapping, according to the analysis.

Third-party reviews

What customers like about iRobot Roomba Combo j7156

Effective 2-in-1 vacuuming and mopping capability
Retractable mop arm lifts up to avoid wetting carpets
Efficient obstacle avoidance using camera and light (PrecisionVision Navigation)
Strong vacuuming performance, particularly on hard floors
Self-emptying bin (Clean Base) reduces maintenance
Good, intuitive smart mapping and keep-out zone features

What customers don't like about iRobot Roomba Combo j7156

High cost for a, at times, unreliable unit
Mapping software can be buggy and lose location/maps
Mopping pads can get dirty, requiring manual washing
Water tank capacity is small, limiting large area cleaning
Can struggle with dirt in tight corners and nooks
Occasional issues with moisture getting into the brush roller area

iRobot Roomba Combo j7156 review: 118 specs compared

Technical Specifications of robot vacuum iRobot Roomba Combo j7156

iRobot Roomba Combo j7156 vs the average robot vacuum

Why is iRobot Roomba Combo j7156 better than the average robot vacuum?

Why is iRobot Roomba Combo j7156 worse than the average robot vacuum?

Expert reviews

Third-party reviews

What customers like about iRobot Roomba Combo j7156

What customers don't like about iRobot Roomba Combo j7156

Verdict

Best alternatives

Compare iRobot Roomba Combo j7156 with other robot vacuums

Graphic comparison of iRobot Roomba Combo j7156 and other robot vacuums