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iRobot Roomba Plus 405 Combo vs Roborock Saros 20
The iRobot Roomba Plus 405 Combo wins with a score of 7.4/10. Best for: Hard-floor-heavy homes (mostly tile/hardwood) without pets, where a dependable iRobot brand and AutoWash dock matter more than top-tier carpet cleaning..
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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Specifications
| iRobot Roomba Plus 405 Combo | Spec | Roborock Saros 20 |
|---|---|---|
| $400 | Price | $1390 |
| — | Suction (Pa) | 35000 |
| 5000 | Battery (mAh) | — |
| 65.0 | Noise (dB) | — |
| — | Dustbin (ml) | — |
| — | Water Tank (ml) | — |
| — | Mop Lift (mm) | — |
| — | Height (mm) | — |
| — | Weight (kg) | — |
| LiDAR | Navigation | LiDAR + 3D ToF |
| ✅ | Self-Empty | ✅ |
| ✅ | Self-Wash Mop | ✅ |
| ✅ | Self-Dry Mop | ✅ |
| ❌ | AI Obstacle | ✅ |
The Verdict
The iRobot Roomba Plus 405 Combo is the better choice with an overall score of 7.4/10 — best for hard-floor-heavy homes (mostly tile/hardwood) without pets, where a dependable irobot brand and autowash dock matter more than top-tier carpet cleaning.. The iRobot Roomba Plus 405 Combo is more affordable at $400 vs $1390.