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iRobot Roomba Combo j5
No test site has tested it yet, so it is not in our ranking.
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 j5 Best on 1 fact | Highest score here Roborock Q7 L5 Best on 6 facts | Cheapest of the top 10 iRobot Roomba 105 Combo Best on 1 fact | |
|---|---|---|---|
| Most important facts | |||
| 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 | – | $139Roborock (brand store) best | $169iRobot (brand store) |
| Our own score out of 10: 60% test-site results, 25% store ratings and 15% the maker’s facts. Price does not count. Score | not in our ranking | best | |
| 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 | – | – | – |
| The test sites that have tested this model, each linked to its own review. Tests | – | Vacuum Wars | Just A Dad Approved |
| Suction in pascal, as the maker measures it. More pascal helps on carpet, but it says little about how well the robot picks grit off a hard floor. In this comparisonWhen it matters
When it matters less
Source
| – | 8,000 Pa best | 7,000 Pa |
| How long the robot cleans on one charge, at its quietest setting. After that it recharges and carries on where it stopped. In this comparisonWhen it matters
When it matters less
Source
| 75 min | 180 min best | 120 min |
| 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
When it matters less
Source
| 0.6 in (16 mm) | 0.8 in (20 mm) best | 0.8 in (20 mm) best |
| How tall the robot is. It decides whether it fits under your sofa, bed or cabinet. In this comparisonWhen it matters
When it matters less
Source
| 3.4 in (8.6 cm) best | 3.9 in (9.9 cm) | 4.1 in (10.4 cm) |
| 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. When it matters
When it matters less
Source
| no | no | – |
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.
Prices per store
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iRobot Roomba Combo j5 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 August 2023
Robot height3.4 in
Climbs thresholds up to0.6 in
Runtime per charge75 min
Battery capacity2,210 mAh
Robot weight7.5 lb
Dimensionsrobot and dock
From the published dimensions. The robot passes under furniture with 3.5 in of clearance or more.
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.
When it matters less
- Short hair and few pets hardly tangle anyway.
Source: irobot.com · 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.
When it matters less
- In open rooms with few corners it adds little.
Source: irobot.com · 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.
When it matters less
- 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 6 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.
When it matters less
- If you only vacuum, the mop’s build decides nothing.
Source: amazon.com · checked on Sep 26
How the mop is built: flat pads, a vibrating pad, two spinning discs or a roller. Discs press harder on dried-on dirt, a roller rinses itself while it works.
- flat pad
- Mop lift on carpet
When it matters
- Homes with rugs and hard floors side by side.
- Mopping without the robot leaving the rugs damp.
When it matters less
- Without rugs the mop never has to lift.
Source: irobot.com · checked on Oct 8
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.
- no
- Mop extends to the edges
When it matters
- Kitchens and hallways where dirt gathers along the baseboard.
- Homes with many corners and table legs.
When it matters less
- In open rooms the strip it leaves along the wall is small.
Source: irobot.com · 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.
When it matters less
- Without carpets the mop can stay on.
Source: irobot.com · 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)
- Mop refreshed while mopping
When it matters
- Large hard floors, where a mop that is never rinsed spreads dirt around.
- Kitchens with sticky spills.
When it matters less
- In a small home the mop does not get dirty enough in one run for it to matter.
Source: irobot.com · checked on Oct 29
The robot returns to the dock during a run to rinse the mop, instead of pushing dirty water around. 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)
- Water tank in the robot
When it matters
- Large hard floors mopped in one go.
- A robot whose dock does not refill it during a run.
When it matters less
- With a dock that refills the robot during the run, the tank’s size hardly matters.
Source: homesupport.irobot.com · checked on Oct 29
How much clean water the robot carries. It sets how long it mops before a refill, which a dock does by itself.
- 210 ml
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.
When it matters less
- In one open room even simple navigation covers the floor.
Source: amazon.com · checked on Sep 26
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.
When it matters less
- In a home that is tidied before each run it matters less.
Source: irobot.com · checked on Sep 26
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 714 of the 980 models we track.
When it matters
- Door sills and raised strips between rooms.
- Thick rugs whose edge the robot has to climb.
When it matters less
- In a flat home with no sills it decides nothing.
Source: homesupport.irobot.com · checked on Sep 28
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
When it matters
- Door sills higher than most robots can take.
- Thick rugs and raised doorsteps between rooms.
When it matters less
- In a home without sills it decides nothing.
Source: irobot.com · checked on Oct 10
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). 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)
- 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.
When it matters less
- 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 4 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
14.2 in (36.1 cm) Middle
3.7 in (9.5 cm)Lower than 738 of the 1088 models we track.
When it matters
- Sofas, beds and cabinets with little room underneath.
- Dust that gathers under furniture you never move.
When it matters less
- With furniture on high legs or flat on the floor it decides nothing.
Source: irobot.com · checked on Sep 26
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.
When it matters less
- In a room with little furniture the robot’s width decides little.
Source: irobot.com · checked on Sep 26
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)
- Robot weight
When it matters
- Carrying the robot up and down the stairs to clean another floor.
- A home on several floors with one robot for all of them.
When it matters less
- If it stays on one floor, its weight does not matter.
Source: irobot.com · checked on Sep 26
What the robot weighs. It counts most if you carry it up a staircase every day.
- 7.5 lb (3.4 kg)
- 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.
When it matters less
- 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.
- 2,210 mAh
- Runtime per charge
Among the models we track
75 min on this model
Lowest
40 min Highest
360 min Middle
150 minLower than 1081 of the 1122 models we track.
When it matters
- Large homes or several floors cleaned in one go.
- Carpet, where the robot uses more power.
When it matters less
- 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 4 facts
- Matter
When it matters
- Running the robot alongside devices from other makers in one app.
- Not wanting to depend on the maker’s own app.
When it matters less
- If the maker’s app is all you use, it adds nothing.
Source: irobot.com · checked on Oct 29
Matter is the standard that lets devices from different makers work together. With it you can run the robot outside the maker’s own app. 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)
- Voice assistants
When it matters
- Starting the robot by voice while your hands are full.
- A home already run with Alexa, Google or Siri.
When it matters less
- If you start it from the app or a schedule, you will not miss it.
Source: irobot.com · checked on Sep 26
Which voice assistants the robot works with, such as Google Assistant or Alexa.
- Alexa, Google Assistant, Siri
- 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.
When it matters less
- For a cheap robot you would replace rather than repair, the extra years count for less.
Source: irobot.com · checked on Sep 28
The warranty the maker gives in the United States.
- 1 year
- Home Assistant
When it matters
- A smart home run from Home Assistant.
- Automations, such as cleaning when everybody has left.
When it matters less
- 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.com · amazon.com · homesupport.irobot.com · home-assistant.io
Frequently asked questions about the iRobot Roomba Combo j5
Can the iRobot Roomba Combo j5 mop?
Yes, with a flat mop cloth under the robot.
Does the iRobot Roomba Combo j5 work with Alexa, Google Home or Siri?
It works with Alexa, Google Assistant and Siri. Home Assistant has an official integration for this model.
How high a threshold can the iRobot Roomba Combo j5 climb?
Thresholds up to 0.6 in (16 mm), the maker says. Measure your own thresholds: the ones to a bathroom or balcony are often higher.
Does the iRobot Roomba Combo j5 fit under low furniture?
The robot is 3.4 in (8.6 cm) tall, so it fits under furniture with at least 3.5 in of clearance. It has no turret on top.
How long does the iRobot Roomba Combo j5 run on one charge?
75 minutes on its quietest setting.
Does the iRobot Roomba Combo j5 lift its mop on carpet?
No. On carpet the mop stays on the robot, so mopping and carpet do not go together on this model.
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.