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iRobot Roomba Plus 405 Combo vs iRobot Roomba Plus 505 Combo
The iRobot Roomba Plus 505 Combo wins with a score of 8.0/10. Best for: Hard-floor homes that want a hands-off mop-and-vacuum combo with strong AI obstacle avoidance.
iRobot Roomba Plus 405 Combo
A solid mid-tier Roomba that finally brings LiDAR navigation and a self-washing dock under $500. But weak deep-carpet performance and zero obstacle avoidance make it hard to recommend over the Roborock Q Revo or Dreame L40 Ultra at the same price.
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iRobot Roomba Plus 505 Combo
iRobot’s most well-rounded mid-tier combo to date — fantastic mopping and obstacle avoidance, let down only by noise and average carpet performance.
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Specifications
| iRobot Roomba Plus 405 Combo | Spec | iRobot Roomba Plus 505 Combo |
|---|---|---|
| $400 | Price | $500 |
| — | Suction (Pa) | 7000 |
| 5000 | Battery (mAh) | — |
| 65.0 | Noise (dB) | 70.0 |
| — | Dustbin (ml) | — |
| — | Water Tank (ml) | — |
| — | Mop Lift (mm) | — |
| — | Height (mm) | — |
| — | Weight (kg) | — |
| LiDAR | Navigation | ClearView Pro LiDAR + PrecisionVision AI |
| ✅ | Self-Empty | ✅ |
| ✅ | Self-Wash Mop | ✅ |
| ✅ | Self-Dry Mop | ✅ |
| ❌ | AI Obstacle | ✅ |
The Verdict
The iRobot Roomba Plus 505 Combo is the better choice with an overall score of 8.0/10 — best for hard-floor homes that want a hands-off mop-and-vacuum combo with strong ai obstacle avoidance. The iRobot Roomba Plus 405 Combo is more affordable at $400 vs $500.