Amazon has the iRobot Roomba Plus 405 down to $398.99, the lowest price it has ever been. That’s a $227.50 savings — 36% off its list price — and one of the deepest discounts we’ve seen on a vacuum-and-mop robot that also offers self-emptying and pad washing as part of the package.
If you’ve been waiting for a true set-it-and-forget-it floor cleaner, this is the rare deal that substantially changes the value equation. It’s not only more affordable, it offers features typically limited to more expensive flagship devices in a midrange price tier.
Why this Roomba Plus 405 deal is worth grabbing now
At this cost, the Roomba Plus 405 is less expensive than some high-end hybrids that still need you to rinse out or empty the pads in their tank by hand. The dock does the unglamorous work: it empties the debris from the robot into a bag and a station called AutoWash cleans and dries the mop pads, so you aren’t returning to a floor smelling damp and musty — or a dustbin that’s already full — after running for hours.
When you’ve got a household of kids, pets, and mixed flooring types, this is the kind of maintenance automation that matters way more than a small bump in suction specs. It ensures that performance remains constant from one week to the next since, at the beginning of each cleaning cycle, the robot is equipped with clean pads and a fresh bin.
Key features and cleaning performance of Roomba 405
The Roomba Plus 405 vacuums and mops in a one-two punch, with powerful suction at four levels of intensity to match the mess. Repeat-pass choices assist with high-traffic locations, and targeted “Clean Zones” and “Keep Out Zones” let you dial in where it should (and should not) go — helpful for pet bowls or cable nests.
For mopping, it’s color-coded so you no longer have to worry about mismatched pads; DualClean spinning pads and SmartScrub provide surface-specific agitation for mopping with just the slide of a switch. They apply even pressure on floors to remove stubborn grime and get deeper into gaps. And that’s the difference between a quick wipe vs. an actual scrub on kitchen tile, particularly after sauces or muddy paw prints. You can switch on water or a compatible cleaning solution while using it over sealed hard floors for an extra shimmer.
After use, the AutoWash dock rinses and dries the pads and refreshes the system for next use. And paired with the auto-empty bin, it reduces weekly maintenance to swapping a bag and replacing pads when necessary.
How this price compares to other auto-wash hybrids
Roborock and Ecovacs models with both auto-empty and pad washing tend to hover well north of this sale price. The Roomba Plus 405 doesn’t scream flagshippy enough to sound like a spec-chaser’s orgasm, but it has the key conveniences that people can actually feel on most days — solid pickup, real mechanical scrubbing action, and a dock that takes the edge off hands-on chores.
It also shares in iRobot’s software history as well. iRobot has been touted by Consumer Reports for its strong predicted reliability and owner satisfaction in the robot vacuum category, and the company’s room-specific cleaning and no-go boundary tools are tried-and-true. If you’ve dealt with Roomba in the past, the mapping and app use will feel like old hat and stable.
The larger market context speaks volumes: According to Statista, about 1 in 5 U.S. households now has a robot vacuum, with the fastest gains coming during the brief periods when maintenance worries fall away. That shift is being driven by hybrid systems that mop and self-maintain — the very niche this deal seeks to address.
Who will benefit most from Roomba Plus 405 features
- Pet owners battling fur tumbleweeds will appreciate the auto-empty base, which prevents clogs from accumulating inside the onboard bin.
- Multifloor households: carpet-lifting pads and the ability to deep-scrub tile in kitchens or bathrooms without babysitting the robot.
- Busy schedules: with the app, set when to clean and let the dock handle resets between runs.
If you’re coming from a vacuum-only bot or one that requires you to wash the pad yourself, the daily convenience upgrade is drastic. In testing and real-world use, that convenience might be what separates a homeowner using the robot daily from relegating it to collect dust (pun intended).
What to consider before buying the Roomba Plus 405
Consumables — dock bags and mop pads — are an inherent part of the cost of ownership. That said, the lower cost pays for several months of supplies in most homes. Like any mop-ready robot, do not use it to clean unsealed hard floors, and begin with test runs in smaller areas so you can adjust water levels and pad pressure for your surfaces.
Other upscale options also exist, and pricing can fluctuate rapidly on in-demand robot vacuums — especially during big sales events like these. Inventory tends to get lean, so don’t wait too long if you spot an outstanding deal. If the Roomba Plus 405’s combination of vacuuming, scrubbing, and cleaning itself checks your boxes, this is the time to pounce.