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Dreame L40s Ultra vs iRobot Roomba Plus 405 Combo
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..
Dreame L40s Ultra
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.
Read full reviewScore Comparison
Specifications
| Dreame L40s Ultra | Spec | iRobot Roomba Plus 405 Combo |
|---|---|---|
| $800 | Price | $400 |
| 16000 | Suction (Pa) | — |
| — | Battery (mAh) | 5000 |
| — | Noise (dB) | 65.0 |
| — | Dustbin (ml) | — |
| — | Water Tank (ml) | — |
| — | Mop Lift (mm) | — |
| — | Height (mm) | — |
| — | Weight (kg) | — |
| LiDAR + 3D Structured Light | Navigation | LiDAR |
| ✅ | 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 $800.