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Dreame L40 Ultra Gen 2
Dreame robot vacuum · sold by Dreame
530 owner ratings
$569.99
Verdict
A long-hair champion: the detangling comb system shrugs off hair that wraps other robots.
- Excellent long-pet-hair handling
- Full wash/empty/dry dock
- Strong mopping with lift
- Dreame app upsells feel pushy
- Big dock
Best for: Homes with long-haired pets and humans alike.
Skip it if: You want the simplest app experience.
Sub-scores
- Cleaning
- 9.2
- Navigation
- 8.8
- Maintenance
- 8.6
- Value
- 8.0
- Noise & UX
- 8.4
ValueScore: 4.4 / 10 — value for money vs the best in this category, at an effective price of $569.99 (deal-adjusted)
Cleaning 40% · Navigation 20% · Maintenance 15% · Value 15% · Noise & UX 10%. How we test
Specifications
Specs marked “not disclosed” are absent from the manufacturer's materials; all printed values are verified against official documentation.
| Spec | Dreame L40 Ultra Gen 2 |
|---|---|
| Price (live) | $569.99 |
| Dock / self-empty | Auto-empty + mop wash + dry |
| Mopping | Dual spinning mops |
| Main brush | Detangling comb system |
| Warranty | 1 year |
| ValueScore | 4.4 |
| DustScore | 8.8 |
| Buy | Check price → |
Videos & independent reviews
Coverage gathered from around the web so you can check our verdict against everyone else’s. We label who published what — manufacturer videos are marketing; independent outlets received nothing from us.
Written reviews elsewhere
“The Dreame L40 Ultra Gen 2 is not a simple upgrade—it’s a rebalancing act. On one hand, it delivers outstanding suction power, best-in-class efficiency, strong mopping performance, and a highly automated dock experience.”
VacuumChef“The Dreame L40 Ultra Gen 2 is the best robot vacuum for hard-floor homes with pets or a busy schedule.”
Everyday Home Comfort
Videos are hosted on YouTube and we don’t control their content. “Manufacturer video” is published by Dreame’s own channel; independent reviewers are not affiliated with this site and these links earn us nothing. Review excerpts are quoted verbatim with attribution — quoting is not endorsement.
Appears on these rankings
- Best for long hair Best robot vacuums for pet hair
- Best for long hair Best robot vacuum and mop combos
- Best for long hair Best robot vacuums for large homes
Compare with
| Spec | Dreame L40 Ultra Gen 2 | Roborock Q10 S5+ | Eureka E20 Plus | Eureka E20 Evo Plus |
|---|---|---|---|---|
| Price (live) | $569.99 | $259.99 | 🎁 210 OFF at checkout | 🎁 190 OFF at checkout |
| Suction | Not disclosed | Not disclosed | 8,000 Pa | 10,000 PA |
| Dock / self-empty | Auto-empty + mop wash + dry | Auto-empty bag dock (2.5 L) | Bagless self-empty station (~45 days per empty) | Bagless self-empty station |
| Onboard dustbin | Not disclosed | Not disclosed | 2 L (base station dust cup) | 2 Liters (base station) |
| Max runtime | Not disclosed | Not disclosed | Up to 180 min (manufacturer-claimed max) | Up to 180 min |
| Navigation | Not disclosed | Not disclosed | Gyroscope + DuoDetect floor sensing | Gyroscope |
| Obstacle avoidance | Not disclosed | Yes | AI 3-D obstacle avoidance | Yes (Right-Side PSD) |
| Mopping | Dual spinning mops | Not disclosed | Flat mop pad | Mop pad included (pre-installed) |
| Mop lifting | Not disclosed | Not disclosed | 10 mm | 10 mm |
| Main brush | Detangling comb system | Not disclosed | V-shaped rubber roller brush | Anti-Tangle Brush Roll; Dragonclaw™ Anti-Tangle Side Brush |
| Noise | Not disclosed | Not disclosed | 65 dB(A) | Not disclosed |
| Weight | Not disclosed | Not disclosed | 8 kg (with Station) | Not disclosed |
| App / voice | Not disclosed | Not disclosed | Yes (Eureka app; Alexa, Google Assistant, Siri) | Yes (Eureka app; Alexa, Google Assistant, Siri) |
| Warranty | 1 year | 1 year | 2 years | 2 years |
| ValueScore | 4.4 | 8.6 | 8.9 | 10.0 |
| DustScore | 8.8 | 9.1 | 8.7 | 8.7 |
| Buy | Check price → | Check price → | Check price → | Check price → |
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