iRobot Roomba Plus 405 Combo vs Roborock Qrevo Curv 2 Flow
Researched by Riley Hart · prices checked Oct 31, 2026
As of Oct 31, 2026, the iRobot Roomba Plus 405 Combo costs $800 and the Roborock Qrevo Curv 2 Flow costs $800. The Roborock Qrevo Curv 2 Flow has a published review score and ranks #19 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 Roborock Qrevo Curv 2 Flow for hard floor apartments.
- 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
- LiDAR
- Mopping
- Roller mop
- Runtime
- 100 to 125 min tested
A strong pick for apartments and homes that are mostly hard floor, because the self cleaning roller mop scrubs harder than the spinning pads on older Qrevo models. Reviewers found edge and corner cleaning inconsistent and small object avoidance only average. Skip it if you have low furniture, lots of carpet or want detergent dosing built into the dock.
Full Roborock Qrevo Curv 2 Flow review →Side by side
| iRobot Roomba Plus 405 Combo | Roborock Qrevo Curv 2 Flow | |
|---|---|---|
| Price | $800 | $800 |
| 3 year cost | $800 | $800 |
| Our score | Not scored yet | 7.0/10 |
| Rank in Floors | #66 | #19 |
| Status | on sale | on sale |
| Warranty | n/a | 1 year (Roborock US store) |
| 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 (Roborock); Vacuum Wars measured 16 CFM airflow |
| 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 | PreciSense LiDAR, multi level maps for up to four floors |
| Obstacle avoidance | No obstacle avoidance sensors (Vacuum Wars); BestReviews saw it tangle on cords twice in one run | Reactive AI with structured light and an RGB camera, 200+ object types (Roborock); Vacuum Wars scored it 16 of 24 objects avoided |
| 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, SpiraFlow 270 mm self cleaning roller mop with up to 15 N pressure, lifts 15 mm and deploys a guard on carpet; no mop only mode |
| Self empty | Yes, bagged, up to 75 days based on one run per week (iRobot) | Yes, empties into a disposable 2.5 L dust bag in the dock |
| 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 | Washes the roller with 167°F water and dries it with warm air up to 131°F; about 4 L clean and 3 L dirty water tanks; no detergent tank and no plumbed refill |
| Dustbin | 0.1 gal robot bin (Best Buy listing) | 325 ml onboard (Vacuum Wars); 2.5 L bag in the dock |
| Height | 4.2 in; robot is 14.1 x 13.8 x 4.2 in and 9.06 lb (iRobot) | 4.7 in (119 mm) |
| 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 | DuoDivide main brush and anti tangle side brushes; 0% tangles in Vacuum Wars 7 inch hair test, 77.5% flattened pet hair pickup |
| 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 | Roborock app with no go zones, room selection and remote camera; works with Alexa, Google Home and Siri |
| Noise | Dock emptying measured 87.8 dBA by Vacuum Wars and 80 to 85 dB by BestReviews | n/a |
| Runtime | n/a | Roborock claims 228 min vacuum only; CyberShack measured 100 to 125 min in mixed use; about 3 hr to recharge |
| Threshold | n/a | 20 mm in Vacuum Wars testing |
| Best for | hard floor homes on a deep discount | hard floor apartments |
| Skip if | you have carpet, pets or cables on the floor | you need it to fit under low furniture |
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
Roborock Qrevo Curv 2 Flow
- CyberShack (8.7/10): Excellent hard floor vacuuming at 91% to 95% and good mopping close to skirting, above average on short and medium pile carpet, but weak on carpet pet hair and no edge or corner cleaning on carpet. Measured 100 to 125 minutes of real runtime. Source
- Gizmodo: Called the roller mop the most powerful robot mop it had tested where it can reach, with good hair and sand pickup, but edge gaps of around 8 inches at times, a swallowed USB C cord and sock, and limited battery for large homes. Source
- Vacuum Wars (3.64/5): Strong vacuum with 87% carpet sand removal and 0% hair tangles, but a combined mopping score of 13.7 against a 22.75 category average and 16 of 24 obstacles avoided. Headline verdict: strong vacuum, disappointing mopping. 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
Roborock Qrevo Curv 2 Flow
Pros
- Self cleaning roller mop with real downward pressure
- Strong hair pickup with no tangles in testing
- Hot water wash and warm air dry for the roller
- Mop lifts and is shielded over carpet
Cons
- Edges and corners missed in several reviews
- 4.7 in tall, misses some low cabinets and couches
- No detergent tank and no mop only mode
- Swallowed a cord and a sock in Gizmodo testing
Questions buyers ask
Which is better, the iRobot Roomba Plus 405 Combo or the Roborock Qrevo Curv 2 Flow?
The Roborock Qrevo Curv 2 Flow has a published review score and ranks #19 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 Roborock Qrevo Curv 2 Flow for hard floor apartments.
What is the difference between the Roomba Plus 405 Combo and the Qrevo Curv 2 Flow?
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 (Roborock); Vacuum Wars measured 16 CFM airflow on the Qrevo Curv 2 Flow. 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, PreciSense LiDAR, multi level maps for up to four floors on the Qrevo Curv 2 Flow. Obstacle avoidance: No obstacle avoidance sensors (Vacuum Wars); BestReviews saw it tangle on cords twice in… on the Roomba Plus 405 Combo, Reactive AI with structured light and an RGB camera, 200+ object types (Roborock)… on the Qrevo Curv 2 Flow.
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