iRobot Roomba Plus 405 Combo vs iRobot Roomba Plus 415 Combo + AutoWash Dock
Researched by Riley Hart · prices checked Oct 31, 2026
As of Oct 31, 2026, the iRobot Roomba Plus 405 Combo costs $800 and the iRobot Roomba Plus 415 Combo + AutoWash Dock costs $600, so the iRobot Roomba Plus 415 Combo + AutoWash Dock is $200 cheaper. The iRobot Roomba Plus 415 Combo + AutoWash Dock has a published review score and ranks #34 in our robot vacuums ranking; the iRobot Roomba Plus 405 Combo is not scored yet. Pick the iRobot Roomba Plus 405 Combo for hard floor homes on a deep discount. Pick the iRobot Roomba Plus 415 Combo + AutoWash Dock for clear hard floors and low furniture.
- Suction
- iRobot claims 70x
- Navigation
- ClearView LiDAR
- Mopping
- DualClean spinning pads
The Plus 405 Combo gives you LiDAR mapping, lifting spin mops and a dock that empties and washes pads for about $800. Both independent tests we read were unimpressed: weak measured suction, poor carpet and pet hair results, wet floors and no obstacle avoidance. Hard floor homes that want the iRobot app can consider it on a deep sale; most buyers should compare other docks first.
Full iRobot Roomba Plus 405 Combo review →- Suction
- 20,000 Pa
- Navigation
- ClearView LiDAR
- Mopping
- Yes
A slim, low cost entry to iRobot's wash and dry docks, with spinning pads that scrub spills well and a 3.29 in body that fits under low furniture. It has no camera, so testers saw it tangle in cables and push toys around. Buy it for mostly clear hard floors; skip it if you have cords or pet toys on the floor.
Full iRobot Roomba Plus 415 Combo + AutoWash Dock review →Side by side
| iRobot Roomba Plus 405 Combo | iRobot Roomba Plus 415 Combo + AutoWash Dock | |
|---|---|---|
| Price | $800 | $600 |
| 3 year cost | $800 | $600 |
| Our score | Not scored yet | 6.2/10 |
| Rank in Floors | #66 | #34 |
| Status | on sale | on sale |
| Warranty | n/a | n/a |
| Suction | iRobot claims 70x the suction of Roomba 600 series, with 4 levels; Vacuum Wars measured 0.13 kPa against a 0.83 kPa average | 20,000 Pa (Ideal Home, Just A Dad Approved); iRobot's US page says 2.8X the Roomba Plus 405 Combo, while Ideal Home says 2.8 times the older Roomba 505 |
| Navigation | ClearView LiDAR, maps about 1,000 sq ft in 9 minutes and stores up to 4 maps (iRobot); Vacuum Wars measured 0.76 m2/min against a 0.70 average | ClearView LiDAR, up to 3 maps, about 9 min per 1,000 sq ft (iRobot); Ideal Home found the map accurate and systematic |
| Obstacle avoidance | No obstacle avoidance sensors (Vacuum Wars); BestReviews saw it tangle on cords twice in one run | LiDAR only, no camera; Ideal Home called it the weakest area, with tangles in charging cables and toys pushed aside |
| Mopping | DualClean spinning pads at 200 RPM with SmartScrub and auto lift on carpet (iRobot); Vacuum Wars scored 145 on dried stains against a 93 average but found it left 5.20 g of water against a 1.01 g average | Yes, two DualClean pads at 200 RPM with SmartScrub and 10 mm lift on rugs (iRobot); Ideal Home cleared a BBQ sauce spill in one pass |
| Self empty | Yes, bagged, up to 75 days based on one run per week (iRobot) | Yes, sealed bag that lasts up to 3 months (iRobot) |
| Dock features | AutoWash dock empties the bin, washes and dries the pads and runs a self cleaning water cycle (iRobot); Vacuum Wars notes no hot water wash or hot air drying | Empties, washes pads during mopping, heat dries them at 113°F, refills water and self cleans (iRobot); no detergent compartment per Ideal Home |
| Dustbin | 0.1 gal robot bin (Best Buy listing) | Not published; Just A Dad Approved says the bin fills quickly |
| Height | 4.2 in; robot is 14.1 x 13.8 x 4.2 in and 9.06 lb (iRobot) | 3.29 in (iRobot) |
| Pet hair | Vacuum Wars measured 50% flattened pet hair pickup on carpet against a 66% average and 17% hair wrap; BestReviews saw 90% to 95% faux fur pickup on hard floors but under 50% on carpet | Ideal Home and Just A Dad Approved both saw hair wrap the brush |
| App | Roomba Home app with routines, Clean Zones and Keep Out Zones; works with Alexa, Siri and Google Assistant (iRobot); Vacuum Wars and BestReviews called the app buggy or basic | Roomba Home app with schedules and zones; works with Alexa, Siri and Google Assistant (iRobot) |
| Noise | Dock emptying measured 87.8 dBA by Vacuum Wars and 80 to 85 dB by BestReviews | n/a |
| Weight | n/a | 6.44 lb robot (iRobot) |
| Best for | hard floor homes on a deep discount | clear hard floors and low furniture |
| Skip if | you have carpet, pets or cables on the floor | your floors have cables or pet toys |
Specs are maker claims unless a reviewer is named. Prices from the stores we link, checked daily.
What reviewers found
iRobot Roomba Plus 405 Combo
- Vacuum Wars (1.66 Vacuum Wars stars): Measured 0.13 kPa suction and 10 CFM airflow against 0.83 kPa and 16 CFM averages, 58% carpet deep clean against 75%, 50% flattened pet hair against 66%, and 5.20 g of water left behind. Dried stain score of 145 beat the 93 average. Called it a letdown. Source
- BestReviews: Tested in a 1,000 sq ft two level apartment. Picked up 90% to 95% of faux fur on hard floors but under 50% on carpet, spread spilled water, tangled on cords twice in one run, and the dock measured 80 to 85 dB when emptying. Testers did not recommend it. Source
iRobot Roomba Plus 415 Combo + AutoWash Dock
- Ideal Home: UK test: cleared a BBQ sauce spill in one pass and reached skirting boards, but tangled in charging cables, pushed toys and wrapped hair on the roller. Notes 45°C pad drying versus 75°C washes on some rivals. Source
- Just A Dad Approved (6.2/10): Three months of home use: hassle free 7/10, mop 6/10, carpet 6/10, hair tangle 5/10, clutter 7/10. Pads occasionally detached and it missed cords and small objects. Source
Pros and cons
iRobot Roomba Plus 405 Combo
Pros
- Dock empties, washes and dries mop pads
- LiDAR maps quickly and stores 4 maps
- Mop pads lift on carpet
- Single brush roll resisted hair wrap in testing
Cons
- Very low measured suction
- Poor carpet and pet hair pickup
- No obstacle avoidance
- Leaves floors wet
- Loud dock emptying
iRobot Roomba Plus 415 Combo + AutoWash Dock
Pros
- Spinning pads scrub spills in one pass
- Dock washes and heat dries pads
- Very slim 3.29 in body
- Good edge cleaning
- Easy setup
Cons
- No camera obstacle avoidance
- Tangles in cables
- Hair wraps the brush
- Water only, no detergent dosing
- Small robot bin
Questions buyers ask
Which is better, the iRobot Roomba Plus 405 Combo or the iRobot Roomba Plus 415 Combo + AutoWash Dock?
The iRobot Roomba Plus 415 Combo + AutoWash Dock has a published review score and ranks #34 in our robot vacuums ranking; the iRobot Roomba Plus 405 Combo is not scored yet. Pick the iRobot Roomba Plus 405 Combo for hard floor homes on a deep discount. Pick the iRobot Roomba Plus 415 Combo + AutoWash Dock for clear hard floors and low furniture.
Which is cheaper?
The iRobot Roomba Plus 415 Combo + AutoWash Dock at $600, versus $800 for the iRobot Roomba Plus 405 Combo, checked Oct 31, 2026. Over 3 years with running costs: $800 vs $600.
What is the difference between the Roomba Plus 405 Combo and the Roomba Plus 415 Combo + AutoWash Dock?
Suction: iRobot claims 70x the suction of Roomba 600 series, with 4 levels; Vacuum Wars measured… on the Roomba Plus 405 Combo, 20,000 Pa (Ideal Home, Just A Dad Approved); iRobot's US page says 2.8X the Roomba Plus… on the Roomba Plus 415 Combo + AutoWash Dock. Navigation: ClearView LiDAR, maps about 1,000 sq ft in 9 minutes and stores up to 4 maps (iRobot)… on the Roomba Plus 405 Combo, ClearView LiDAR, up to 3 maps, about 9 min per 1,000 sq ft (iRobot); Ideal Home found… on the Roomba Plus 415 Combo + AutoWash Dock. Obstacle avoidance: No obstacle avoidance sensors (Vacuum Wars); BestReviews saw it tangle on cords twice in… on the Roomba Plus 405 Combo, LiDAR only, no camera; Ideal Home called it the weakest area, with tangles in charging… on the Roomba Plus 415 Combo + AutoWash Dock.
Also consider
See all ranked →More comparisons
- Ecovacs Deebot X9 Pro Omni vs iRobot Roomba Plus 405 Combo
- Dreame L60 Ultra FE vs iRobot Roomba Plus 405 Combo
- iRobot Roomba Plus 405 Combo vs Roborock Qrevo Curv 2 Flow
- iRobot Roomba Plus 405 Combo vs iRobot Roomba Plus 575 Combo + AutoWash Dock
- iRobot Roomba Plus 415 Combo + AutoWash Dock vs TP-Link Tapo RV50 Pro Omni
- iRobot Roomba Plus 415 Combo + AutoWash Dock vs iRobot Roomba Plus 575 Combo + AutoWash Dock
- iRobot Roomba Plus 415 Combo + AutoWash Dock vs Shark PowerDetect NeverTouch Pro 2 in 1
- iRobot Roomba Plus 415 Combo + AutoWash Dock vs Shark PowerDetect ThermaCharged 2 in 1
All robot vacuums, ranked
See the ranking →Affiliate links. We may earn a commission. It never changes our score. Disclosure
We check prices every morning and compare them with each model's 2026 low. One email when real deals land, plus our 5 minute Friday roundup. Unsubscribe anytime.