iRobot Roomba J5+ Combo Vacuum & Mop

3.5

(10)

Bottom Line

Choose the Roomba Combo j5+ if you want strong vacuuming plus top-tier hazard avoidance and don’t mind swapping bins to mop; Skip if you expect hands-off mopping automation or quiet auto-emptying, especially at near-list pricing.

Best for

Homes prioritizing reliable vacuuming, room-by-room scheduling, and strong obstacle avoidance (cords, toys, pet accidents), with occasional light mopping as a bonus.

Not for

Anyone wanting fully automated, daily mopping with scrubbing, mop lifting, refilling/cleaning/drying at the dock, or shoppers sensitive to loud auto-empty cycles and premium pricing.

Verdict

Across reviews, the Roomba Combo j5+ lands as a very capable J-series Roomba vacuum with excellent app-driven mapping, room routines, and standout obstacle avoidance, paired with a self-empty base that reduces daily chores. The tradeoff is that its “swap-and-mop” approach makes mopping far less automated than newer premium combos: you must switch bins, manage a small tank, and rely on no-mop zones instead of true mop lifting, and multiple reviewers found the mopping result closer to a light wipe than a deep clean. Noise during auto-emptying and ongoing bag costs also factor into ownership. It’s easiest to recommend when discounted, or for homes where vacuuming and avoidance matter more than mopping performance.

Pros

AI, Smart & App / Automation 4.7 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 9 reviews 4.7

Reviews consistently describe an excellent iRobot app experience: room-by-room jobs, schedules, favorites, keep-out zones and no-mop zones, cleaning history and smart integrations (voice assistants). Some reviewers also note the mop bin may need to be added/registered in-app as a separate accessory via QR code, and mapping/room divider edits can take some effort.
Aesthetic design & finish 4.6 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.6

Design is generally described as sleek/premium-looking for a Roomba, with a well-regarded base aesthetic compared to bulkier docks, though the robot can feel heavy.
Packaging quality 4.5 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.5

Packaging is described as organized and mostly cardboard with parts easy to identify; a few reviews mention small annoyances like locating the included mop pad or unclear/incomplete mop-bin instructions.
Hair‑Wrap / Tangle Resistance 4.4 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 4 reviews 4.4

The dual rubber roller system is frequently credited with strong tangle resistance, with most hair issues showing up on the side brush rather than the main rollers.
Obstacle Avoidance (Robot) 4.3 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 9 reviews 4.3

Obstacle avoidance is repeatedly highlighted as a key strength for the J-series camera system, successfully recognizing common hazards (cords, toys, pet accidents). However, a few reviews mention it can miss smaller items or isn’t flawless in all edge cases.
Carpet — Low-Pile Pickup 4.3 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 4.3

Low-pile carpet performance is frequently rated strong for a Roomba-class robot, with good debris pickup and solid deep-clean results in testing. Some reviewers still recommend multiple passes for heavier soil.
Carpet — High-Pile Pickup 4.2 ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.2

High-pile/deep-clean behavior is described as above average for embedded debris in at least one test-focused review, though it remains a robot vacuum and may need repeat passes for very heavy messes.
Maintenance requirements 4.2 ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.2
Carpet — Medium-Pile Pickup 4.2 ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 4.2

Medium-pile carpet pickup is generally praised, with multiple reviews describing high overall debris recovery and strong everyday cleaning on rugs/carpets compared with peers at similar prices.
Map & Path Efficiency (Robot Vacuums) 4.0 ★ ★ ★ ★ ★ ★ ★ ★ ★ 7 reviews 4.0

Mapping and navigation are generally described as efficient, logical row cleaning with room targeting and recharge-and-resume. Some reviewers report mapping may take multiple runs or that the robot can act clunky in tight areas, but overall pathing and map tools are viewed as above average.
Hair Pickup — Hard Floors 4.0 ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 4.0

Hard-floor hair pickup is a common discussion point: some reviews praise strong hair collection with minimal tangles on the main rollers, while at least one test-focused review reports the brush design can scatter light, fluffy pet hair on hard floors.
Hard Floor — Large Debris Intake 3.9 ★ ★ ★ ★ ★ ★ ★ ★ ★ 4 reviews 3.9

Large debris pickup is generally good, but a few controlled tests report scatter or partial pickup with larger items (e.g., rice), suggesting performance varies by debris type and floor surface.
Docking & Auto-Empty Reliability (Robot) 3.8 ★ ★ ★ ★ ★ ★ ★ ★ ★ 9 reviews 3.8

The self-empty base is a major convenience when vacuuming, with multi-week capacity in a disposable bag. Multiple reviewers also note limitations when the mop bin is installed (auto-empty may be blocked) and describe the docking/empty cycle as very loud.
Assembly and Setup 3.8 ★ ★ ★ ★ ★ ★ ★ ★ ★ 5 reviews 3.8

Setup is usually described as straightforward via the iRobot app, but several reviews describe extra friction with the mop bin (needing to scan/register it as an accessory), plus mapping and room labeling/divider edits that take time to refine.
Bin & Bag 3.7 ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 3.7

The disposable-bag clean base and swappable bin concept are viewed as convenient for vacuuming, but the swap-and-mop bin design reduces automation (smaller dust capacity when mopping, and some report the mop bin interferes with self-emptying).
Hard Floor — Fine Dust Pickup 3.7 ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 3.7

Fine dust results are mixed: some reviews say it struggles with fine dust on hard floors (e.g., flour-like particles), while others found it effective on small crumbs; overall, fine particulate pickup is a relative weak spot versus larger debris.

Cons

Ongoing ownership costs (bags, filters, batteries) 3.3 ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 3.3

Ongoing ownership includes disposable bags (often referenced as an added cost but manageable when bought in multipacks) and periodic replacement parts (filters/brushes). Some reviews mention the overall cost feels steep if bought near list price given the mopping limitations.
Hair Pickup — Carpets 3.3 ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 3.3

Carpet hair pickup is generally rated good, though some testing reports pet hair clumping and a lower score relative to heavier debris; still, most reviewers consider it solid for the price tier.
Price & Value 3.2 ★ ★ ★ ★ ★ ★ ★ ★ 8 reviews 3.2

Value is highly price-dependent: reviewers often call it a great deal when discounted (especially versus cheaper robots lacking obstacle avoidance), but view it as overpriced at or near list due to limited mopping automation and feature gaps versus premium combos.
Noise level 3.1 ★ ★ ★ ★ ★ ★ ★ ★ 1 review 3.1

During normal cleaning, noise is described as reasonable to average, but the dock/auto-empty cycle is widely described as the loudest, most disruptive moment.
Support & Reliability 3.0 ★ ★ ★ ★ ★ ★ ★ ★ 1 review 3.0

Support and reliability signals are mixed: iRobot’s pet-accident avoidance promise and established ecosystem are viewed positively, but some users report needing customer service help to activate the mop bin properly and express frustration with documentation clarity.
Mopping performance 3.0 ★ ★ ★ ★ ★ ★ ★ ★ 10 reviews 3.0

Mopping is widely characterized as light-duty: more of a wet-pad wipe than a scrub. Some tests show decent results on certain stains, but several reviewers found it underpowered for dried-on messes and lacking features like vibration/scrubbing and strong pressure.
Streaking / Residue 2.9 ★ ★ ★ ★ ★ ★ ★ ★ 1 review 2.9
Corner Cleaning (Robot) 2.8 ★ ★ ★ ★ ★ ★ ★ ★ 1 review 2.8

Edge/corner performance is a noted limitation in some reviews, with the single side brush and robot geometry leaving corners less thoroughly cleaned than open areas.
Runtime (Measured, Boost/Turbo) 2.7 ★ ★ ★ ★ ★ ★ ★ ★ 1 review 2.7

Boost/turbo runtime is not applicable in the typical sense because multiple reviews note limited or single suction level control; instead, cleaning improvements are often achieved via multiple passes.
Water tank 2.6 ★ ★ ★ ★ ★ ★ ★ ★ 4 reviews 2.6

The mop module uses a small tank (often cited around 210ml/7oz) and requires manual fill. Several reviews warn it can seep/leak once filled and recommend filling only when ready to run, plus removing/storing the mop bin after use.
Dock noise 1.7 ★ ★ ★ ★ ★ ★ ★ 3 reviews 1.7

Auto-emptying noise is repeatedly called out as loud (some describe it as jet-engine level), with docking/emptying being the most disruptive part compared to typical cleaning operation.
Mop lifting system 1.3 ★ ★ ★ ★ ★ ★ ★ 7 reviews 1.3

The j5+ does not provide a true mop lifting/retracting system; multiple reviews emphasize you must manage carpets with no-mop zones and careful room selection, and that premium Roombas (e.g., higher combos) handle this more automatically.

FAQ

Does the j5+ mop without getting rugs wet?

It does not have true mop lifting; reviewers consistently note you must use app no-mop zones and be deliberate about where it mops, otherwise rugs can get damp.

Do you have to swap bins to use the mop?

Yes. Multiple reviews describe a swap-and-mop design: you replace the standard dust bin with the combo mop bin/tank when you want to mop.

Is the self-empty base usable while the mop bin is installed?

Several reviewers report auto-emptying is blocked or not supported with the mop bin installed, so you may need to empty manually when using the mopping module.

How good is obstacle avoidance?

Most reviews rate it as a major strength, with camera-based recognition that avoids common household hazards and is especially valuable for pet owners.

Is it a good value?

Value depends heavily on sale pricing; reviewers frequently recommend it when discounted, but consider it expensive for the level of mopping automation at near list price.