HearthCircuit

Robot Vacuum

Roomba Combo J9

by iRobot

The Roomba Combo j9+ is a genuinely useful two-in-one cleaning solution for households wanting to automate both vacuuming and mopping without babysitting the process.

Benchmarked alongside 55 other smart home products in our lab, averaging 4.5/5 across the catalog.

Overall score4.4/5.0
Verdict
The Roomba Combo j9+ is a genuinely useful two-in-one cleaning solution for households wanting to automate both vacuuming and mopping without babysitting the process. Its obstacle avoidance and carpet-sensing mop retraction set it apart from cheaper hybrids, though buyers should be comfortable with its premium price and lighter-duty mopping performance.

Technical Specifications

Suction Power8000 Pa
Battery Runtimeup to 120 minutes
Dustbin Capacity (Auto-Empty Base)60 days
Water Tank Capacity300 ml
NavigationPrecisionVision camera-based AI mapping
  • Retractable mop pads for carpet-safe transitions
  • PrecisionVision AI obstacle avoidance and recognition
  • 8,000Pa suction power for vacuuming
  • Auto-empty, self-refilling Clean Base dock
  • Smart mapping with room-specific scheduling via app
  • Dual spinning mop pads for scrubbing hard floors

Pros

  • ✓ Seamlessly switches between vacuuming and mopping
  • ✓ Excellent obstacle detection avoids pet waste and cords
  • ✓ Strong suction handles pet hair and debris well
  • ✓ App offers granular control over zones and schedules
  • ✓ Auto-empty dock reduces daily maintenance

Cons

  • ✕ Premium price point compared to standard robot vacuums
  • ✕ Mop pads only lightly scrub, not ideal for heavy stains
  • ✕ Water tank capacity limits mopping range on large homes
  • ✕ Occasional hesitation navigating cluttered or dark rooms
88%

Roomba Combo J9

by iRobot

  • Auto-retracting mop pads
  • AI obstacle avoidance
  • Self-emptying dock included
Check price
Trusted by readers of HearthCircuit56 products reviewedSite average 4.5/5

We earn a small commission on qualifying purchases via AliExpress affiliate links — at no extra cost to you.

The iRobot Roomba Combo j9+ is the latest flagship in iRobot's vacuum-mop hybrid lineup, designed to tackle both dry debris and wet messes in a single pass. Its standout feature is the retractable mop pad, which lifts out of the way automatically when the robot senses carpet, preventing wet mop heads from soaking rugs. This intelligent switching between vacuuming and mopping modes eliminates the need for two separate devices or manual intervention between cleaning cycles. At the heart of the Combo j9+ is iRobot's PrecisionVision navigation system, which uses an onboard camera and AI-based obstacle recognition to identify and avoid items like pet waste, charging cables, shoes, and socks in real time. Combined with mapping technology that learns your home's layout over multiple runs, the robot builds increasingly efficient cleaning paths and lets you set no-go zones, room-specific schedules, and targeted cleaning for particular areas through the iRobot Home app. The included Clean Base Auto-Empty Dock handles more than debris disposal — it also refills the onboard water tank for mopping and can hold weeks of dirt before you need to empty it. Suction power sits at 8,000Pa, putting it in competitive territory with other premium robot vacuums, while the dual spinning mop pads apply consistent pressure for scrubbing dried spills and light stains off hard flooring.

Customer reviews

Finally avoids the dog's mess — Melissa R. (2024-02-14)
I was nervous after past robots smeared pet accidents everywhere, but the Combo j9+ actually stopped and rerouted. The mop lifting on rugs automatically is a game changer for my mixed flooring home.
Great vacuum, decent mop — Derek T. (2024-03-02)
Suction is fantastic on pet hair and crumbs. The mopping is more of a light refresh than deep clean, but for daily maintenance it's convenient since I don't have to switch tools.
App control is excellent — Priya S. (2024-01-20)
Being able to schedule specific rooms and set no-go zones around my kids' play area has been really handy. Wish the water tank lasted longer on bigger cleaning runs though.
Worth the investment — Anthony B. (2024-04-10)
Yes it's expensive, but combining vacuum and mop into one reliable machine that avoids obstacles has saved me so much time. The auto-empty base is also incredibly convenient.