The half-price Roomba Plus 405 Combo is a killer early Prime Day deal

Save $400: As of July 7, the iRobot Roomba Plus 405 Combo is on sale for $399.99 at Amazon — a steep 50% off its usual $799.99. This early Prime Day deal is exclusive to Prime members.

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Credit: iRobot

iRobot Roomba Plus 405 Combo

$399.99 at Amazon
$799.99 Save $400

 

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This huge robot vacuum deal might be the excuse you needed to let a machine take over your cleaning routine. The iRobot Roomba Plus 405 Combo is now 50% off ahead of Prime Day. Our robot vacuum expert hand-picked this deal as something to consider in a rundown of the best Roomba deals already live.

At $399.99 for a limited time, this is the lowest-ever price for the iRobot Roomba Plus 405 Combo according to price tracker camelcamelcamel. This isn’t just another “vacuum that also mops” either; it’s a serious deep-cleaning machine with suction, scrubbing, and smart navigation that’s surprisingly advanced for the price point.

Its 70x suction power (compared to older Roombas) doesn’t mess around, whether it’s loose pet hair or dried-up paw prints. Twin spinning mop pads do more than a surface swipe, thanks to iRobot’s SmartScrub tech that adds pressure and motion for a better clean — especially on grime and stuck-on spills. The AutoWash Dock doesn’t just empty the vacuum bin — it also washes and dries the mop pads, refills water, and keeps things running for up to 75 days with almost zero maintenance.

Mapping is just as sharp. With ClearView LiDAR, it builds a super-accurate floorplan of your space, avoids obstacles, lifts the mop when it hits carpet, and knows exactly where to go (and where not to). You can target messes with Clean Zones, block off areas with Keep Out Zones, and even control it by app, voice assistant, or on-device buttons.

At just under $400, this early Prime Day deal brings a feature-packed robot cleaner into budget territory. If you're looking for a smart vacuum that actually mops like it means it, the Roomba 405 Combo might just be the sweet spot.

If you can't yet move away from old-school manual cleaning, the Ultra-Light Shark Rocket vacuum is now on sale for only $99. For jamming to music whilst you clean, the Apple AirPods 4 are $30 off ahead of Prime Day.