iRobot Roomba Combo J7+
Not sold at any store we monitor today, so not in our ranking.
Labs that tested it
Before you buy, compare it with 2 recommended alternatives
No store here sells this model today, so beside it the highest-scored model with the same kind of station that one does, and the cheapest of the top 10.
Green is the best of these 3, also when they share the lead.
| This model iRobot Roomba Combo J7+ Best on 2 facts | Cheapest of the top 10 Roborock Q7 M5+ Best on 3 facts | Highest score here Dreame D20 Plus Best on 4 facts | |
|---|---|---|---|
| Price and ranking | |||
| The lowest price today at a store that ships to you, shipping included. A price with an asterisk comes from a store abroad, and its shipping cost is our own estimate. Lowest price | – | $249Roborock (brand store) best | $309Dreame (brand store) |
| Our own score out of 10: 60% lab tests, 25% store ratings and 15% the maker’s facts. Price does not count. Score | best | ||
| The labs that have tested this model, each linked to its own review. Tests | Vacuum Wars TechRadar | Vacuum Wars | Just A Dad Approved Vacuum Wars |
| Where the model stands in our ranking, among the robots with the same kind of station. Rank | – | rank 11 of 18 with a self-emptying station | rank 1 of 18 with a self-emptying station |
| The average of the stars buyers give at the stores, with the number of reviews behind it. We only compare it from 20 reviews. Customer rating | – | – | – |
| Mopping | |||
| How the mop is built: flat pads, two spinning discs or a roller. Discs press harder on dried-on dirt, a roller rinses itself while it works. When it matters
Source
| flat or vibrating pad | flat or vibrating pad | flat or vibrating pad |
| How far the robot lifts the mop when it drives onto a carpet. From about 0.4 in (10 mm) a medium pile stays dry. In this comparisonWhen it matters
Source
| 1.2 in (30 mm) best | no | no |
| The robot leaves the mop at the dock before it vacuums a carpet, so the carpet never gets wet. When it matters
Source
| no (assumed) | no (assumed) | no (assumed) |
| The dock washes the mop for you, so you do not rinse it by hand. When it matters
Source
| – | no | no |
| Drying is done with warm air instead of cold. It is faster and it helps against smell. When it matters
Source
| – | no | – |
| Station | |||
| The station the robot returns to, and what it does by itself, such as emptying the bin or washing and drying the mops. Station same on all | self-emptying station | self-emptying station | self-emptying station |
| How long the maker says a dust bag lasts with daily use. With pets or a lot of carpet it is shorter. In this comparisonWhen it matters
Source
| up to 60 days | up to 49 days | up to 150 days best |
| The dock can be connected to the tap and the drain, so you never fill or empty a tank. It does need a connection nearby. When it matters
Source
| – | no | – |
| Brush and obstacles | |||
| A brush that guides hair to the side instead of letting it wind around the shaft. It saves the cutting work in homes with long hair or pets. When it matters
Source
| no (assumed) | yes (best) | yes (best) |
| How the robot sees loose things on the floor, such as cables, socks or a pet accident. A camera with depth sensing sees more than a bumper that reacts on contact. When it matters
Source
| AI camera | – | – |
| The highest threshold the robot takes, as the maker states it. Measure your own: the step into a bathroom or onto a balcony is often higher. In this comparisonWhen it matters
Source
| 0.6 in (16 mm) | 0.8 in (20 mm) best | 0.8 in (20 mm) best |
| An extending leg or wheel that carries the robot over a high threshold. Without one it usually stops at about 0.8 in (2 cm). When it matters
Source
| no | no (assumed) | no (assumed) |
| Size, noise and age | |||
| How tall the robot is. It decides whether it fits under your sofa, bed or cabinet. In this comparisonWhen it matters
Source
| 3.4 in (8.6 cm) best | 3.9 in (9.9 cm) | 3.8 in (9.7 cm) |
| The noise in decibels, in the setting its source names: makers mostly give the standard setting, stores often the highest. 65 dB is like a vacuum at half power, 55 dB like a conversation. When it matters
Source
| – | 65 dB | – |
| The month the model first went on sale. It shows how old the technology in it is. On the market since | June 2023 | May 2025 | August 2025 |
Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews.
What the tests like and dislike about the iRobot Roomba Combo J7+
Pros
- Excellent at deep cleaning carpet with its twin rubber brushes Vacuum Wars ↗
- Handles heavy debris on hard floors that many robots struggle with Vacuum Wars ↗
- Avoids cords and fake pet mess well, though not flawlessly Vacuum Wars ↗
- Maps rooms accurately and learns where extra cleaning is needed TechRadar ↗
- Leaves hard floors shiny once the mop pad has soaked through TechRadar ↗
- Rubber rollers stay largely free of tangled hair TechRadar ↗
Cons
- Struggles with old dried-in stains even after many passes Vacuum Wars ↗
- Some water gets into the brush housing and makes debris stick Vacuum Wars ↗
- Vacuuming everything before mopping makes combined runs slow Vacuum Wars ↗
- Emptying into the base is startlingly loud TechRadar ↗
- Gets overwhelmed by big spills and pushes debris to the edges TechRadar ↗
- All mop upkeep, from refilling to washing pads, is by hand TechRadar ↗
Where the testers disagree
- Pickup: Vacuum Wars: Handles heavy debris on hard floors that many robots struggle with against TechRadar: Gets overwhelmed by big spills and pushes debris to the edges
- Mopping: TechRadar: Leaves hard floors shiny once the mop pad has soaked through against Vacuum Wars: Struggles with old dried-in stains even after many passes
- Navigation: TechRadar: Maps rooms accurately and learns where extra cleaning is needed against Vacuum Wars: Vacuuming everything before mopping makes combined runs slow
Each point sums up, in our words, the review of the test it names, and its link leads to that review. We do not summarize RTINGS or Wirecutter: their lists are linked above.
iRobot Roomba Combo J7+ specifications
The numbers that matter first, then every fact by group. As published by the maker or the store we read it from.
iRobot · on the market since June 2023
Consumables: a 2.5 l dust bag in the station, which lasts up to 60 days.
Dimensionsrobot and dock
From the published dimensions. The robot passes under furniture with 3.4 in of clearance or more. The dock needs a spot 15.7 in wide and 11.9 in deep.
Suction and brushes 3 facts
- Anti-tangle brush
When it matters
- Long hair and pet hair, which wrap around a bristle brush.
- Homes where you would rather not cut hair off the brush.
- Short hair and few pets hardly tangle anyway.
Source: irobot.nl · checked on Oct 10
A brush that guides hair to the side instead of letting it wind around the shaft. It saves the cutting work in homes with long hair or pets. On this model: Assumed, not a stated fact: the maker's full specification does not name it, so we take it as no.
- no (assumed)
- Extending side brush
When it matters
- Corners and edges along baseboards, where a round robot leaves a strip of dust.
- Rooms with many walls and furniture edges.
- In open rooms with few corners it adds little.
Source: irobot.nl · checked on Oct 10
The side brush swings out in a corner or along a baseboard, so the dust there is swept in too. On this model: Assumed, not a stated fact: the maker's full specification does not name it, so we take it as no.
- no (assumed)
- Dirt detection
When it matters
- Entrances and kitchens, where dirt gathers in one place.
- Pets that leave hair in a favorite spot.
- If dirt is spread evenly, a normal pass cleans it just as well.
Source: irobot.com · checked on Oct 2
A sensor notices where more dirt lies, at the doormat for example, and the robot cleans that patch longer or a second time.
- yes
Mopping 4 facts
- Mop type
When it matters
- Homes with a lot of hard floor that you want mopped, not just wiped.
- Dried-on dirt in a kitchen, which spinning pads or a roller scrub off better than a dragged cloth.
- If you only vacuum, the mop’s build decides nothing.
Source: irobot.nl · checked on Sep 26
How the mop is built: flat pads, two spinning discs or a roller. Discs press harder on dried-on dirt, a roller rinses itself while it works.
- flat or vibrating pad
- Mop lift on carpet
Among the models we track
1.2 in (30 mm) on this model
Lowest
0.2 in (5 mm) Highest
1.2 in (30 mm) Middle
0.4 in (10.5 mm)Higher than 280 of the 282 models we track.
When it matters
- Homes with rugs and hard floors side by side.
- Mopping without the robot leaving the rugs damp.
- Without rugs the mop never has to lift.
Source: vacuumwars.com · checked on Sep 29
How far the robot lifts the mop when it drives onto a carpet. From about 0.4 in (10 mm) a medium pile stays dry.
- 1.2 in (30 mm)
- Mop extends to the edges
When it matters
- Kitchens and hallways where dirt gathers along the baseboard.
- Homes with many corners and table legs.
- In open rooms the strip it leaves along the wall is small.
Source: irobot.nl · checked on Oct 10
The pad slides out along a wall or a baseboard, so the last few inches are mopped as well. On this model: Assumed, not a stated fact: the maker's full specification does not name it, so we take it as no.
- no (assumed)
- Automatic mop detach
When it matters
- Homes with carpets or rugs that should stay dry.
- High-pile rugs that no mop lift clears.
- Without carpets the mop can stay on.
Source: irobot.nl · checked on Oct 10
The robot leaves the mop at the dock before it vacuums a carpet, so the carpet never gets wet. On this model: Assumed, not a stated fact: the maker's full specification does not name it, so we take it as no.
- no (assumed)
Dock 5 facts
- Empties the dust bin
When it matters
- Pets, sand or a large home, which fill the bin every run.
- Dust allergy, since you rarely touch the dust yourself.
- In a small home with little dust, emptying the bin by hand takes a moment.
Source: irobot.nl · checked on Sep 25
The dock empties the robot’s dust bin, usually after every run. You only empty the dock’s bag or bin.
- yes
- Bagless
When it matters
- Not wanting to buy bags again and again.
- Pets, whose hair fills a bag quickly.
- With a dust allergy a sealed bag keeps the dust in when you throw it away, so bagless is no gain.
Source: irobot.nl · checked on Sep 28
The dock collects dust in a bin instead of a disposable bag. No bags to buy, but you empty it yourself.
- no
- Dust bag capacity
Source: vacuumwars.com · checked on Sep 29
How much the dust bag in the dock holds.
- 2.5 l
- Dust bag lasts
Among the models we track
up to 60 days on this model
Lowest
up to 30 days Highest
up to 180 days Middle
up to 70 daysLower than 249 of the 454 models we track.
When it matters
- Pets or a lot of carpet, which fill a bag faster than the maker’s figure.
- Counting what bags cost in a year.
- With a bagless dock there is no bag to replace.
Source: irobot.nl · checked on Sep 28
How long the maker says a dust bag lasts with daily use. With pets or a lot of carpet it is shorter.
- up to 60 days
- Dock size (w × d × h)
When it matters
- A small hallway or a niche where the dock has to fit.
- Placing the dock under a cabinet or a counter.
- Along an open wall with room to spare it decides little.
Source: irobot.com · checked on Sep 28
The width, depth and height of the dock. Measure the spot you have in mind, and leave room for the lid and for the robot driving in.
- 15.7 × 11.9 × 13.3 in (39.9 × 30.2 × 33.8 cm)
Navigation and obstacles 5 facts
- Navigation
When it matters
- Several rooms, where a map lets you send the robot to one of them.
- Cleaning in the dark, which lidar does and a camera alone does not.
- In one open room even simple navigation covers the floor.
Source: irobot.com · checked on Sep 29
How the robot maps your home and follows that map. Lidar measures with a laser and works in the dark, a camera looks along and recognizes more.
- camera
- Obstacle avoidance
When it matters
- Cables, socks and toys left on the floor.
- Pets, whose accidents a robot should steer around.
- In a home that is tidied before each run it matters less.
Source: irobot.nl · checked on Sep 28
How the robot sees loose things on the floor, such as cables, socks or a pet accident. A camera with depth sensing sees more than a bumper that reacts on contact.
- AI camera
- Climbs thresholds up to
Among the models we track
0.6 in (16 mm) on this model
Lowest
0.1 in (3 mm) Highest
2.4 in (60 mm) Middle
0.8 in (20 mm)Lower than 663 of the 914 models we track.
When it matters
- Door sills and raised strips between rooms.
- Thick rugs whose edge the robot has to climb.
- In a flat home with no sills it decides nothing.
Source: homesupport.irobot.com · checked on Sep 22
The highest threshold the robot takes, as the maker states it. Measure your own: the step into a bathroom or onto a balcony is often higher.
- 0.6 in (16 mm)
- Climbing system for high thresholds
63 of the 116 models we track have this.
When it matters
- Door sills higher than most robots can take.
- Thick rugs and raised doorsteps between rooms.
- In a home without sills it decides nothing.
Source: irobot.com · checked on Sep 22
An extending leg or wheel that carries the robot over a high threshold. Without one it usually stops at about 0.8 in (2 cm).
- no
- Camera on board
When it matters
- Privacy, if you would rather not have a camera driving through your home.
- Small things on the floor, which a camera sees better than lidar alone.
- If the floor is tidied before each run, a camera adds little.
Source: derived, no source of its own · checked on Oct 2
Whether the robot has a camera, and what for: to recognize obstacles, or also to show you a live picture of your home in the app.
- obstacle camera
Robot 3 facts
- Robot height
Among the models we track
3.4 in (8.6 cm) on this model
Lowest
2.2 in (5.6 cm) Highest
5.7 in (14.5 cm) Middle
3.7 in (9.5 cm)Lower than 681 of the 1002 models we track.
When it matters
- Sofas, beds and cabinets with little room underneath.
- Dust that gathers under furniture you never move.
- With furniture on high legs or flat on the floor it decides nothing.
Source: irobot.com · checked on Sep 22
How tall the robot is. It decides whether it fits under your sofa, bed or cabinet.
- 3.4 in (8.6 cm)
- Robot diameter
When it matters
- Dining chairs and tables with legs close together.
- Narrow gaps between furniture and walls.
- In a room with little furniture the robot’s width decides little.
Source: homesupport.irobot.com · checked on Sep 28
How wide the robot is. Narrower gets between chair legs more easily, wider usually means a bigger dust bin.
- 13.3 in (33.8 cm)
- Dust bin in the robot
When it matters
- A robot without a self-emptying dock, which you empty by hand.
- Pets and long hair, which fill a small bin within one run.
- With a self-emptying dock the bin is emptied after every run, so its size hardly matters.
Source: homesupport.irobot.com · checked on Oct 5
How much dust the robot holds before you empty it. It matters less with a self-emptying dock, which empties the bin after every run.
- 210 ml
Battery 2 facts
- Battery capacity
Source: homesupport.irobot.com · checked on Sep 28
The capacity of the battery. It hints at the runtime, but how much the robot draws counts just as much.
- 4,460 mAh
- Runtime per charge
Among the models we track
75 min on this model
Lowest
45 min Highest
360 min Middle
150 minLower than 954 of the 989 models we track.
When it matters
- Large homes or several floors cleaned in one go.
- Carpet, where the robot uses more power.
- In a small home most robots finish well before the battery runs low.
Source: homesupport.irobot.com · checked on Sep 28
How long the robot cleans on one charge, at its quietest setting. After that it recharges and carries on where it stopped.
- 75 min
Smart features and warranty 3 facts
- Voice assistants
When it matters
- Starting the robot by voice while your hands are full.
- A home already run with Alexa, Google or Siri.
- If you start it from the app or a schedule, you will not miss it.
Source: irobot.nl · checked on Sep 28
Which voice assistants the robot works with, such as Google Assistant or Alexa.
- Alexa, Google Assistant
- Warranty
When it matters
- A robot with a dock full of pumps and moving parts, where more can break.
- An expensive robot you plan to keep for years.
- For a cheap robot you would replace rather than repair, the extra years count for less.
Source: irobot.nl · checked on Sep 28
The warranty the maker gives in the United States.
- 2 years
- Home Assistant
When it matters
- A smart home run from Home Assistant.
- Automations, such as cleaning when everybody has left.
- If you only use the maker’s app, it adds nothing.
Source: home-assistant.io · checked on Oct 2
Whether the robot works with Home Assistant, the home automation software you run yourself. Official means the integration comes with Home Assistant itself, community that volunteers maintain it.
- official integration
Sources: irobot.nl · vacuumwars.com · irobot.com · homesupport.irobot.com · home-assistant.io
Our score
Confidence: medium. One lab and fewer than 300 owners’ ratings. The highest score today is 8.8.
-
Lab tests 60%5.8
5 cleaning abilities measured, on one scale for every robot.
- Deep clean on carpet8.3
- Pet hair7.0
- Mopping0.9
- Obstacle avoidance7.0
- Navigation6.1
Measured by Vacuum Wars (read on September 29, 2026).
Measured 5.9, counted 5.8: the fewer labs stand behind a result, the more we pull it toward the average of its station type.
-
Owners’ ratings 25%–
Owners’ ratings, 25%: none yet at the stores that ship to the United States, so this part is left out and the others count for more.
-
Features 15%6.8
41 of 60 points for the facts the maker states.
- Price never countsA sale can’t lift a model. Today’s lowest price sits beside the score, checked every morning.
- No test, no rankOnly robots a lab has tested are ranked. The rest get a provisional score.
- Reviewers beside, not insideReviewers’ picks are shown next to the score and do not count in it.
Frequently asked questions about the iRobot Roomba Combo J7+
Does the iRobot Roomba Combo J7+ empty its own dust bin?
Yes. The station empties the robot’s dust bin after every run. The 2.5 l dust bag in the station lasts up to 60 days, the maker says.
Can the iRobot Roomba Combo J7+ mop?
Yes, with a flat mop cloth under the robot.
Does the iRobot Roomba Combo J7+ work with Alexa, Google Home or Siri?
It works with Alexa and Google Assistant. Home Assistant has an official integration for this model.
How high a threshold can the iRobot Roomba Combo J7+ climb?
Thresholds up to 0.6 in (16 mm), the maker says. It has no climbing system for higher thresholds. Measure your own thresholds: the ones to a bathroom or balcony are often higher.
Does the iRobot Roomba Combo J7+ fit under low furniture?
The robot is 3.4 in (8.6 cm) tall, so it fits under furniture with at least 3.4 in of clearance. It has no turret on top.
How long does the iRobot Roomba Combo J7+ run on one charge?
75 minutes on its quietest setting.
The maker
iRobot
- Reviews on Trustpilot
- Headquarters: United States
- Founded in 1990
- Owned by Picea, China
iRobot designs and builds consumer robots, and introduced its first Roomba robot vacuum in 2002. The company was incorporated in 1990 and has its headquarters in Bedford, Massachusetts, in the United States. Since January 2026 it has been a privately held company wholly owned by Picea, which had been its primary contract manufacturer.
