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RELEASED 2023.09REASSESSED 2026.09.02
iRobot

iRobot Roomba Combo j5+

The bin sets the mode. With the Roomba Combo bin installed the j5+ vacuums and mops in the same pass; with the dry bin installed it vacuums only. Self-emptying works with the dry bin and pauses while the Combo bin is fitted. Carpet protection is not automatic and has to be set up in the app before a mopping run.

iRobot Roomba Combo j5+
FIT CHECK

Will the iRobot Roomba Combo j5+ work in your home?

Describe your home using the controls. Each choice reads the spec sheet for you, flagging where the iRobot Roomba Combo j5+ is built for your space and where it isn’t.

Home size

Primary floors

Mopping needs

You want to…

A classification of fit for the conditions you set, not a recommendation. Verdicts describe engineering design intent, not test results.

SPECIFICATION

The full spec sheet.

Priced below the category median, with every figure charted against the category below.

13.4 in dia3.4 inDimensional drawing
Key specificationsManufacturer-published
Footprint
13.4 in dia · 3.4 in tall•
Weight
7.5 lbs•
Battery
26 Wh · Li-ion
Wi-Fi
2.4 GHz only✓
Voice
Alexa✓
Water tank capacity
210 mL•
Threshold climb
0.6 in✓
Mapping & navigation

vSLAM camera with iAdapt 3.0 multi-room mapping

Where it lands · ranked across 243 robot vacuumsThis robotMedianTypical range
Suction1,700Pamode not stated
1,000 Pa42,000 Pa
Bottom of range
Runtime75min

60 min360 min
Bottom of range
Price$729

$160$2,599
Near median
Noise67dB

43 dB80 dB
Near median
Charge time120min

90 min420 min
Below median
Weight7.5lbs

3.6 lbs25 lbs
Near median

Position shows where the figure sits across the tracked category, not a quality judgment. Suction in Pascals has no standard test method, and the published figure is a peak-mode claim, so it is comparable only within a brand and generation.

OWNERSHIP

Living with it.

Dock and vacuum mechanism are stable. Bin-swap discipline and water spillage are the primary failure vectors.

iRobot reported 94%+ run-completion rates on vacuum cycles. Mopping reliability is lower due to manual water refills and pad condition. Firmware 3.10+ (2024) improved carpet-detection safety to prevent water spillage on unexpected carpet.

Owner effort~3 hrshands-on per month
Consumables$74replaceable parts / yr
Reliability trend Improvingowner-reported arc
What goes wrong · 3 documented · 1 self-recover
Common
Mopping pads clogging from dried residueUneven wet contact; dragging sensation during mop runs
Owner fixHand-wash pads in warm water weekly; soak if dry residue is visible
Occasional
Water spilled into dock during bin swapDock short circuits or auto-empty does not function until dried
Owner fixDry dock interior; swap bins carefully to prevent water overflow; use absorbent towel during swap
Occasional
Carpet-triggered emergency stop mid-mop-runRobot pauses on unexpected carpet; requires app reset to resume
Self-recoversManually confirm carpet mode or proceed with mopping; app control provides override
Upkeep routine
Each useEvery cycle
Empty the bin by hand. Automatic Dirt Disposal is disabled while that bin is fitted, so the dock does not evacuate it.
Weekly52×/yr
Wash the microfiber pad. iRobot rates the washable pad for about 30 machine washes before replacement.
Seasonal4×/yr
Replace the high-efficiency filter, which is iRobot's stated interval. The genuine three-pack for Combo and i, e and j series lists at $36.99, about $12 per filter. · Inspect dock charging contacts, the front caster, wheels and the robot's sensors.
As neededno fixed schedule
Fit the Combo bin for vacuum and mop, or the dry bin for vacuum only. The bin sets the mode. · Fill the Combo bin reservoir; empty it before the bin is set aside.
Cost over time · past the sticker
PurchaseRunning cost
Year 1
$803
Year 3

$951
Year 5

$1,099

$729 to buy, then about $74 a year for the replaceable parts below. Over three years that is roughly $222 past the sticker price. Excludes electricity and any repairs.

What you replace
  • Filter

Replacement cadence from the maintenance schedule; prices shown where the source documents them.

Safety notes

CautionDock auto-empty air pressure with water present: If mop bin has residual water, dock air jet may spray water. Allow mop bin to dry completely before storing in dock.

NoteTrip hazard from swapped bins on floor: Vacuum and mop bins are identical size; swapping during robot operation can create clutter. Designate a storage spot for unused bin.

RECORD

How the assessment has moved.

Every announcement, release and reassessment behind the current classification.

Coming soon
Just launched
Active updates
Settled
Discontinued
  1. Sep 2026 · AssessmentRobovations Score revised 62 → 61
  2. Aug 2026 · AssessmentRobovations Score revised 57 → 62
  3. Aug 2026 · AssessmentRobovations Score rescored under v4.2: 58 → 57
  4. Aug 2026 · AssessmentRobovations Score rescored under v4.0: 68 → 58
  5. Jul 2026 · AssessmentRobovations Score revised 67 → 68
  6. Jul 2026 · AssessmentRobovations Score recorded at 67 of 100
Editorial comparisons

How iRobot Roomba Combo j5+ compares.

All comparisons →
Common questions

What people actually ask.

5 answered
OperationCan the j5+ vacuum and mop in the same session, or do you swap bins every time?
It does both in the same session. iRobot states that with the Roomba Combo bin installed the j5+ will always vacuum and mop simultaneously, and that the robot instantly switches from vacuum to vacuum-and-mop mode when that bin is installed. The swap is not between two jobs; it is between a dry vacuum bin and a Combo bin that carries dust and water together and does both jobs in one pass.
OperationWhat happens if you leave the mopping bin installed?
Self-emptying stops until you swap back, and that is the whole of it. iRobot disables Automatic Dirt Disposal, along with Dirt Detect, while the Roomba Combo mopping bin is installed, so the Clean Base does not attempt to evacuate that bin and there is no water path into the dock. The dock has no mode of its own; the bin carries the identity. The result of leaving the Combo bin in is debris accumulating in the bin for you to empty by hand.
OperationHow does mopping work without water heating or auto-lift?
Water is ambient temperature and the pad does not lift. With the mopping bin fitted the j5+ does not avoid carpet on its own, so rugs have to be excluded before the run starts: draw No Mop Zones in the app, or restrict the run to rooms without carpet. Independent testing has confirmed that automatic carpet detection does not operate in this configuration. Left unset, the wet pad is dragged across whatever soft flooring lies on the route.
OperationIs the j5+ mopping capability worth the bin-swap inconvenience?
Beneficial for owners wanting occasional mopping without a second robot. Less convenient than self-washing dock models (like Combo j9+). Trade-off is simplicity and low maintenance for manual bin swaps.
OperationCan you clean and reuse mop pads, or do you need to replace them?
The washable microfiber pad is reusable, and iRobot’s guidance is to replace it after about 30 machine washes. Disposable pads are sold for the Combo range as an alternative to washing.

Availability

Where it's sold

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Cite / Embed

Reference the iRobot Roomba Combo j5+ classification.

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Clear space 3222 on all sides
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Robovations. "iRobot Roomba Combo j5+: Autonomy Level III (Conditional Autonomy)." Autonomy Ladder™, assessed September 2026. https://robovations.com/robots/irobot-roomba-combo-j5/

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