Nobody can tell you what the iRobot Roomba Plus 405 Combo actually costs in Australia — because nobody seems to agree. The official RRP is $1,499. iRobot’s own Australian store slashed it to $699… then ran out of stock… then quietly removed it from the lineup entirely. David Jones will sell you one right now for $995. Three prices, three different stories, one robot vacuum. Welcome to the strangest pricing saga in the 2025 robot vacuum lineup — and the reason this article exists.
The Roomba Plus 405 Combo Robot Vacuum & Mop + AutoWash Dock launched in Australia in April 2025 as part of iRobot’s big comeback range — the first Roombas with proper LiDAR navigation and spinning mop pads, aimed squarely at Roborock and Dreame. Eighteen months later, the pricing is chaos, the reviews are brutally honest, and iRobot has already replaced it with newer models. Here’s the full Australian breakdown: what it costs, where you can actually buy it, and whether the chaos hides a bargain.
Quick verdict
The Roomba Plus 405 is iRobot’s mid-range combo robot: 70x the suction of the old 600 series, spinning DualClean mop pads with SmartScrub, ClearView LiDAR mapping, and an AutoWash dock that empties the bin, washes and dries the mop pads for you. At the $995 David Jones price, it’s a competent self-washing combo bot at a $500 discount — but the honest caveats are serious. Independent testers at Vacuum Wars gave it one of the lowest scores they’ve ever recorded, with below-average suction and the worst pet-hair pickup in their test history. And iRobot Australia has already delisted it in favour of the new Plus 415 ($949) and Plus 515 ($1,499). Buy the 405 at $995 only if you specifically want a Roomba and find the new models unappealing; most buyers should look at the clearance Dreame X50 Ultra at ~$1,279 or just buy iRobot’s newer Plus 415 instead.
Roomba Plus 405: Australian price chaos, explained
Here’s the current price picture (checked 8 October 2026) — and it’s genuinely strange:
$995 — David Jones — listed as “was $1,499.00”, in black, with free standard delivery on appliances over $100. This is the only major retailer currently selling it new.
$699 — iRobot Australia (official AU store) — was listed as a special price (save $800 off the $1,499 RRP), but it’s been out of stock — and iRobot’s Australian store no longer lists the Plus 405 at all. Its place in the lineup has been taken by the new Plus 415 ($949), Plus 515 ($1,499), Plus 575 ($1,699) and Plus 675 ($2,199).
$1,499 — RRP — the launch price from April 2025, when the 2025 Roomba range arrived in Australia and New Zealand. Nobody pays this any more.
So what happened? The pattern looks like a classic end-of-line clearance: iRobot discounted the 405 hard to $699 to clear stock, sold out, then replaced it with a refreshed lineup — and David Jones is now clearing its remaining units at $995. That makes the $995 a clearance price on a superseded model, not a deal on current tech. It also means stock is finite: when David Jones sells through, the Plus 405 is effectively gone from Australian retail. Confirm the price and stock before checkout — clearance listings can vanish without warning.
Roomba Plus 405: key features and specs
- 70x more suction than Roomba 600 series robots (around 7,000 Pa max)
- DualClean spinning mop pads with SmartScrub — claimed 2x deeper scrubbing than standard vacuum-and-mop mode, with downward pressure
- AutoWash Dock: auto-empties debris for up to 75 days, washes and dries mop pads (around 4 weeks of mopping per iRobot), self-cleaning dock
- ClearView LiDAR navigation — iRobot’s move away from camera-only VSLAM to laser mapping, with multi-level maps
- Carpet detection: mop pads automatically lift when the robot senses carpet, so wet pads never touch soft flooring
- Flexible cleaning modes: vacuum only, mop only, vacuum and mop simultaneously, or vacuum first then mop
- Roomba Home app: schedules, Clean Zones, Keep Out Zones, room-by-room cleaning, custom routines
- Voice control: works with Alexa, Siri and Google Assistant
- Obstacle handling: LiDAR mapping plus cliff sensors; no dedicated AI obstacle-avoidance camera
- Model: G185000 (AU), black finish
- Warranty: 1-year limited manufacturer warranty (iRobot AU)
The spec that matters most is the dock. The AutoWash station is what separates the 405 from cheaper combos: it doesn’t just empty the dust bin, it washes and dries the mop pads after every run — the difference between a mopping robot that stays useful and one whose pads go grimy after a week. On paper, it’s the complete hands-off package.
What makes the Plus 405 different
It’s iRobot’s comeback machine. The April 2025 lineup was the first time Roomba went all-in on the features Chinese brands had been shipping for years: LiDAR instead of camera-only navigation, spinning mop pads instead of a drag-mop pad, a dock that actually washes things. For a brand that spent a decade iterating on the same bump-and-clean formula, the 405 represented a genuine reset — and the design language changed with it, all curves and a confident green-accented box.
The dock does the gross work. Most combo docks empty the bin and call it a day. The AutoWash dock washes the mop pads with clean water, dries them with warm air, and empties debris into a bag — up to 75 days of bin emptying and around 4 weeks of pad washing before you touch anything. For homes with hard floors and pets, where the mop does half the work, that’s the feature that justifies the combo category at all.
Carpet handling is genuinely thoughtful. The pads lift automatically on carpet detection, and you can run vacuum-first-then-mop so the robot does a dry pass over rugs before the wet pass on hard floors. It’s the kind of mixed-floor logic that cheaper combos fumble — mopping your rug because nobody told the robot not to.
The honest downsides. Independent testing was rough: Vacuum Wars recorded a 1.41/5 overall score — the robot didn’t crack their top 20, or even their top 60 — with below-average suction and airflow, the poorest carpet deep-clean and pet-hair pickup they had measured, a single water setting that left floors excessively wet, no modern obstacle-avoidance sensors, and a buggy app. That’s a damning report card from testers who buy every robot themselves. Against it: for hard-floor homes where mopping matters as much as vacuuming, pet-focused reviewers found it a reasonable fit — paw prints and litter dust are exactly what spinning pads handle well. The truth is probably that it’s a mediocre vacuum and a decent mop, and your floors decide which half matters.
How it compares to rivals at Australian prices
At $995, the Plus 405 sits in the most crowded part of the robot vacuum market — and its rivals mostly outgun it:
- iRobot Roomba Plus 415 ($949, iRobot AU) — the awkward in-house rival: iRobot’s own replacement model, $46 cheaper than the David Jones 405 clearance price, with the current-generation feature set. Unless the 405 drops further, buying the newer 415 direct from iRobot is the more logical Roomba purchase.
- Dreame X50 Ultra (~$1,279–$1,479 clearance) — last year’s $2,999 Dreame flagship at end-of-line prices. More suction, better obstacle avoidance, a more mature app — and only a few hundred more than the 405. Our Dreame X50 Ultra clearance guide has the details. This is where the smart money goes at this budget.
- Roborock Qrevo Curv 2 Flow (~$1,044 on sale) — Roborock’s roller-mop flagship at 58% off its $2,499 RRP. A fundamentally more advanced mopping system than spinning pads. Our Qrevo Curv 2 Flow breakdown covers the price crash. Another step up from the 405 for similar money.
- Ecovacs Deebot X12S ($2,999) — the current flagship tier: double the money, and the performance to justify it if your budget stretches. Our Deebot X12S verdict compares it against the discounted X11. Overkill for most; the point is what $2,999 buys versus $995.
The pattern: at $995 the 405 is priced like a mid-range deal, but its test results read like a budget bot — while its own replacement sits $46 cheaper and its Chinese rivals offer more robot for similar money. The price chaos doesn’t hide a bargain; it explains one.
Who should buy it
Buy the Roomba Plus 405 if: you’re committed to the Roomba ecosystem and want the AutoWash dock convenience at the lowest price it’s ever been at a major retailer; your home is mostly hard floors where the spinning mop pads earn their keep; or you find the new Plus 415’s pricing or availability unappealing and $995 feels right for a self-washing combo.
Think twice if: you have mostly carpet — independent testing found its carpet deep-clean among the worst recorded, and a combo bot is the wrong tool anyway; you have pets that shed heavily — same testing found its pet-hair pickup the poorest on record; you want the latest iRobot tech — the Plus 415 is newer and $46 cheaper direct from iRobot; or you can stretch to ~$1,279 — the clearance Dreame X50 Ultra is simply more robot for the money.
Final verdict
The Roomba Plus 405’s price chaos tells the real story: a $1,499 launch RRP, a $699 fire sale that sold out, delisting from iRobot’s own store, and now $995 at David Jones as the last units clear out. It’s the end of the line for iRobot’s first LiDAR-and-spinning-mop generation — superseded by the Plus 415 at $949 before the 405 even finished selling through. The robot itself is a decent mop and a mediocre vacuum, and the independent test scores say so bluntly. At $995, buy it only if you want a Roomba specifically and the price feels right; everyone else should buy the newer Plus 415 for $46 less, or stretch to the clearance Dreame X50 Ultra and get a flagship for ~$1,279. Confirm stock before you commit — when David Jones runs out, the 405 is gone for good.
Roomba Plus 405: frequently asked questions
How much is the Roomba Plus 405 in Australia?
The RRP is $1,499, but nobody pays that now. David Jones currently lists it at $995 (down from $1,499). iRobot Australia previously had it at a $699 special but it sold out, and iRobot’s AU store no longer lists the Plus 405 at all — it’s been replaced by newer models. Prices checked 8 October 2026.
Why does the Roomba Plus 405 have different prices everywhere?
It’s an end-of-line clearance playing out in public. iRobot discounted the 405 to $699 to clear stock, sold out, then replaced it in the lineup with the new Plus 415 ($949), Plus 515 ($1,499) and others. David Jones is now clearing its remaining units at $995. The varying prices reflect different stages of the same sell-through — not competing deals on current tech.
Is the Roomba Plus 405 discontinued in Australia?
Effectively, yes. iRobot Australia’s store no longer lists the Plus 405 — its current lineup shows the new Plus 415, 515, 575 and 675 models instead. David Jones still has stock at $995, but once that sells through, the 405 will be gone from Australian retail. If you want one, don’t wait for a better price.
Is the Roomba Plus 405 any good?
Honestly: mixed. It’s a decent mopping robot — spinning DualClean pads, SmartScrub, and a dock that washes and dries the pads. But independent testing by Vacuum Wars gave it a 1.41/5 overall score with below-average suction and the poorest carpet deep-clean and pet-hair pickup they had recorded. It’s a mediocre vacuum attached to a good mop; hard-floor homes will get more from it than carpeted ones.
Should I buy the Roomba Plus 405 at $995 or the new Plus 415 at $949?
The Plus 415. It’s iRobot’s newer replacement model, it’s $46 cheaper direct from iRobot Australia, and it’s the current generation — with full warranty support and a future. The 405 at $995 only makes sense if the 415 is unavailable or you find the 405 discounted further. As a rule, don’t pay more for last year’s model than this year’s costs.
