iRobot
iRobot Roomba Plus 405 (G181)
Editor’s Score
Editorial scores, 0–10, comparable across products.
Full Spec Sheet
| Performance | |
| Suction Power | — |
|---|---|
| Runtime | — |
| Charge Time | — |
| Navigation | |
| Navigation Type | LiDAR |
| Obstacle Avoidance | |
| Multi-Floor Mapping | — |
| Maintenance & Docking | |
| Self-Empty Base | |
| Self-Empty Capacity | 75 days |
| Dustbin Capacity | — |
| Mopping | |
| Mopping | |
| Mop Type | Rotating |
| Water Tank | — |
| Connectivity & Warranty | |
| App Control | |
| Voice Assistant | — |
| Warranty | — |
Other details
| Mop cycle | 4 weeks of pad washing/drying per cycle, based on 1 mop pass/week |
|---|---|
| Suction claim | iRobot states 70x the suction of Roomba's 600 series (no absolute Pa published) |
| Safety | Stair-drop / anti-fall sensors |
Review
The Roomba Plus 405 brings iRobot's AutoWash dock — which empties the bin for up to 75 days and washes and dries the dual spinning mop pads through each 4-week cycle — down to a mid-range price. Navigation runs on iRobot's ClearView LiDAR, mapping a home quickly while its sensors steer around obstacles and prevent falls down stairs.
The DualClean mop pads add SmartScrub, a press-down scrubbing motion iRobot says cleans twice as deep as a standard mop pass, and the pads lift automatically when the robot detects carpet so it won't leave wet streaks. Four suction levels and the option to vacuum-only, mop-only, or vacuum-then-mop give more control than most 2-in-1s at this price. The redesigned Roomba Home app adds cleaning-time estimates and filter-health checks on top of the usual scheduling and room targeting.
It's a strong pick for buyers who want the iRobot ecosystem and a genuinely long self-empty interval without paying flagship prices.
Pros
- 75-day self-empty — the longest interval of the three we track
- AutoWash dock washes and dries the mop pads automatically
- SmartScrub press-down mopping for deeper cleaning on hard floors
- Currently 27% off list price ($299.99 vs $409)
Cons
- No absolute suction (Pa) figure published — only a relative marketing claim
- No confirmed voice-assistant integration on the listing
- No confirmed multi-floor mapping on this listing
Ideal for: iRobot fans and pet owners who want the longest self-empty interval with light mopping, without paying flagship prices.
What buyers say
At 4.0 stars across 10,208 ratings, reviewers like the AutoWash dock and the app; it's currently running as a Lightning Deal at 27% off.
Based on 10,208 ratings on Amazon at time of writing.
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