# iRobot Roomba Plus 405 Combo vs iRobot Roomba Plus 575 Combo + AutoWash Dock

As of Oct 31, 2026, the iRobot Roomba Plus 405 Combo costs $800 and the iRobot Roomba Plus 575 Combo + AutoWash Dock costs $800. The iRobot Roomba Plus 575 Combo + AutoWash Dock has a published review score and ranks #23 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 575 Combo + AutoWash Dock for small homes with tight furniture gaps.

Prices checked Oct 31, 2026. HTML version: https://robotsforthat.com/vs/irobot-roomba-plus-405-combo-vs-irobot-roomba-plus-575-combo/

## Side by side

| | iRobot Roomba Plus 405 Combo | iRobot Roomba Plus 575 Combo + AutoWash Dock |
|---|---|---|
| Price | $800 | $800 |
| 3 year cost | $800 | $800 |
| Our score | Not scored yet | 6.9/10 |
| Rank in Floors | #66 | #23 |
| 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 | 25,000 Pa with four levels (Android.com.pl); iRobot's US page says 3.5X the Roomba Plus 505 Combo |
| 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 Pro LiDAR with PrecisionVision AI, up to 5 maps, about 9 min to map (iRobot); Netzwelt found it fast and precise |
| Obstacle avoidance | No obstacle avoidance sensors (Vacuum Wars); BestReviews saw it tangle on cords twice in one run | PrecisionVision AI recognizes cords, socks and pet waste (iRobot); Android.com.pl saw it avoid cables, laces and toys, while Netzwelt saw it sometimes drive over cables |
| 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, DualClean spinning pads at 180 RPM with SmartScrub, a 30 mm edge extension and 10 mm rug lift (iRobot); Netzwelt saw it fail on dried ketchup |
| Self empty | Yes, bagged, up to 75 days based on one run per week (iRobot) | Yes, AllergenLock bag that lasts up to 3 months (iRobot); Android.com.pl lists a 2.5 L bag |
| 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 at 167°F, dries at 113°F and refills with StayClean solution for up to 40 days (iRobot US page); Android.com.pl's European unit listed 60°C washing and 3.6 L clean and 3.2 L dirty tanks |
| Dustbin | 0.1 gal robot bin (Best Buy listing) | 180 ml robot bin and 80 ml water tank (Android.com.pl) |
| Height | 4.2 in; robot is 14.1 x 13.8 x 4.2 in and 9.06 lb (iRobot) | 4.2 in on iRobot's US page; Netzwelt and Android.com.pl list 8.3 cm (3.3 in), so check before buying for low furniture |
| 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 | Netzwelt and Android.com.pl both saw long hair wrap the main and side brushes |
| 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, rooms and no go zones; Alexa, Siri and Google Assistant (iRobot); Android.com.pl saw frequent offline drops on 2.4 GHz Wi-Fi |
| Noise | Dock emptying measured 87.8 dBA by Vacuum Wars and 80 to 85 dB by BestReviews | n/a |
| Runtime | n/a | About 180 min from a 5,200 mAh battery (Android.com.pl); iRobot's US page lists no runtime |
| Threshold | n/a | Up to 35 mm (iRobot); Android.com.pl's text says 30 mm |
| Weight | n/a | 9.44 lb robot on iRobot's US page |
| Best for | hard floor homes on a deep discount | small homes with tight furniture gaps |
| Skip if | you have carpet, pets or cables on the floor | you need deep carpet cleaning |

## 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](https://vacuumwars.com/roomba-plus-405-combo-review-great-hopes-ok-results)
- 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](https://products.ktla.com/articles/home/vacuums/irobot-roomba-plus-405)

### iRobot Roomba Plus 575 Combo + AutoWash Dock

- Netzwelt (Germany): Picked up 29.1 g of 30 g of test dirt. Fast, precise navigation, cleaned under radiators, handled dried coffee but failed on dried ketchup, and sometimes drove over cables. Hair wrapped both brushes. [Source](https://www.netzwelt.de/irobot-roomba-plus-575/testbericht.html)
- Android.com.pl (Poland) (7.8/10): Navigation never failed and it avoided cables, laces and toys. Very good on hard floors, weaker on fine flour in carpet even after two passes. Used about a low teens percent of battery on about 25 m². Repeated Wi-Fi drops in the app. [Source](https://android.com.pl/tech/1093997-recenzja-roomba-plus-575-irobot-opinia/)

## Questions buyers ask

### Which is better, the iRobot Roomba Plus 405 Combo or the iRobot Roomba Plus 575 Combo + AutoWash Dock?

The iRobot Roomba Plus 575 Combo + AutoWash Dock has a published review score and ranks #23 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 575 Combo + AutoWash Dock for small homes with tight furniture gaps.

### What is the difference between the Roomba Plus 405 Combo and the Roomba Plus 575 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, 25,000 Pa with four levels (Android.com.pl); iRobot's US page says 3.5X the Roomba Plus… on the Roomba Plus 575 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 Pro LiDAR with PrecisionVision AI, up to 5 maps, about 9 min to map (iRobot)… on the Roomba Plus 575 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, PrecisionVision AI recognizes cords, socks and pet waste (iRobot); Android.com.pl saw it… on the Roomba Plus 575 Combo + AutoWash Dock.

Full reviews: [iRobot Roomba Plus 405 Combo](https://robotsforthat.com/robot/irobot-roomba-plus-405-combo/index.md), [iRobot Roomba Plus 575 Combo + AutoWash Dock](https://robotsforthat.com/robot/irobot-roomba-plus-575-combo/index.md)