Dreame L40 Ultra Gen 2 vs Roborock Qrevo 2 Pro
Researched by Riley Hart · prices checked Oct 31, 2026
As of Oct 31, 2026, the Dreame L40 Ultra Gen 2 costs $570 and the Roborock Qrevo 2 Pro costs $550, so the Roborock Qrevo 2 Pro is $20 cheaper. The Roborock Qrevo 2 Pro has a published review score and ranks #18 in our robot vacuums ranking; the Dreame L40 Ultra Gen 2 is not scored yet. Pick the Dreame L40 Ultra Gen 2 for tidy hard floor homes that want strong mopping. Pick the Roborock Qrevo 2 Pro for hard floor homes on a midrange budget.
- Suction
- 25,000 Pa claimed
- Navigation
- LDS LiDAR
- Mopping
- Dual spinning mops
- Runtime
- Up to 231 min in quiet
A capable mopper with a full dock for about $500 to $570, but a step back from the original L40 Ultra in obstacle avoidance. Vacuum Wars saw it avoid only 2 of 24 objects and wrap 67% of long hair. Pick it only for tidy homes without long hair; Vacuum Wars itself points pet owners to the L40s Ultra.
Full Dreame L40 Ultra Gen 2 review →- Suction
- 20,000 Pa
- Navigation
- PreciSense LiDAR on top
- Mopping
- Dual spinning mops
- Runtime
- Tom's Guide lists 253
A strong value for mostly hard floor homes that want a mop washing dock without paying flagship prices. Testers liked the mopping and mapping but saw it eat cables and miss hair on carpet. Skip it if your floors are cluttered or you have long haired pets on carpet.
Full Roborock Qrevo 2 Pro review →Side by side
| Dreame L40 Ultra Gen 2 | Roborock Qrevo 2 Pro | |
|---|---|---|
| Price | $570 | $550 |
| 3 year cost | $610 | $550 |
| Our score | Not scored yet | 7.0/10 |
| Rank in Floors | #58 | #18 |
| Status | on sale | on sale |
| Warranty | 3 years (Dreame US store) | 1 year (Roborock US store) |
| Suction | 25,000 Pa claimed (Dreame); Vacuum Wars measured 0.79 kPa bench suction against a 0.99 kPa average, and Vacuum Chef measured 11.5 CFM airflow against a 9.0 average | 20,000 Pa (Roborock store page); Tom's Guide listed 25,000 Pa in its review specs |
| Navigation | LDS LiDAR, up to 4 maps (Dreame); Vacuum Wars measured 0.84 m2 per minute, faster than its 0.72 average | PreciSense LiDAR on top of the robot (Roborock); Tom's Guide mapped four rooms in about 10 minutes |
| Obstacle avoidance | 3D structured light only; the RGB camera of the original L40 Ultra was removed (Dreame, Vacuum Wars); Vacuum Wars saw it avoid 2 of 24 objects and Vacuum Chef scored 30% | Structured light Reactive Tech, no camera (Roborock); Gizmodo saw it swallow micro USB cables and a sock, TechRadar saw it avoid a shoe and sock but snag a USB cable |
| Mopping | Dual spinning mops, 10.5 mm lift, 4 cm extension, no auto removal (Dreame); Vacuum Wars scored dried stains 144 against a 108 average | Dual spinning mops with FlexiArm edge reach, auto mop removal for carpet, 0.591 in mop lift (Roborock); Tom's Guide saw soy sauce, mayonnaise and mud cleared in two passes |
| Self empty | Yes, 3.2 L dust bag, up to 100 days (Dreame) | Yes, self sealing dust bag, up to 65 days (Roborock); Tom's Guide lists a 2.7 L dock bag |
| Dock features | Auto empty, mop wash, hot air drying, auto water refill, 4.5 L clean and 4.0 L dirty tanks; detergent dispenser sold separately for $39.99 (Dreame). Dreame lists hot water mop cleaning, but Vacuum Wars says Gen 2 washes with room temperature water | Mop wash up to 149°F, 113°F warm air drying, 4 L clean water refill, removable base (Roborock); Tom's Guide cited 167°F wash |
| Runtime | Up to 231 min in quiet vacuum mode, up to 1,679 sq ft (Dreame); Vacuum Wars estimated about 1,290 sq ft per charge | Tom's Guide lists 253 min and a 6,400 mAh battery; Gizmodo cleaned 750 sq ft in just under two hours with a little over 50% left |
| Dustbin | 250 ml robot bin plus 3.2 L dock bag (Dreame) | 11.8 fl oz robot bin (Tom's Guide) |
| Height | 3.82 in (97 mm) (Dreame) | 3.80 in (Roborock) |
| Pet hair | Vacuum Wars measured 69% flattened pet hair pickup and 67% hair wrap on its 7 in hair test; carpet sand removal was 90% | Tom's Guide measured 60% of hair picked up on hardwood and 48% on carpet |
| App | Dreamehome app with Alexa, Siri, Google Home and Apple Watch; Matter planned in an update (Dreame) | Roborock app with SmartPlan 3.0; works with Alexa, Siri, Google Home and Matter (Roborock); TechRadar found custom room names unreliable by voice |
| Threshold | 0.79 in (2 cm) (Dreame) | Not listed by Roborock; TechRadar says it handles regular doorways but not high thresholds |
| Noise | Vacuum Chef measured 73 dB at max suction, about average | TechRadar measured about 60 dB on carpet and 69 dB peak during dock emptying; Roborock lists 45 dB drying noise |
| Best for | tidy hard floor homes that want strong mopping | hard floor homes on a midrange budget |
| Skip if | you have pets with long hair or a cluttered floor | you have cluttered floors or lots of carpet hair |
Specs are maker claims unless a reviewer is named. Prices from the stores we link, checked daily.
What reviewers found
Dreame L40 Ultra Gen 2
- Vacuum Wars (3.11 Vacuum Wars stars): Dried stain score 144 (108 average), 90% carpet sand removal, but 69% pet hair pickup, 67% hair wrap and only 2 of 24 obstacles avoided. Estimated about 1,290 sq ft per charge. Source
- Vacuum Chef: Measured 11.5 CFM airflow, 90% coffee, 60% sand and 98% cat litter pickup, 73 dB at max and a 30% obstacle avoidance score against a 66% average. Called it a rebalancing rather than an upgrade. Source
Roborock Qrevo 2 Pro
- Tom's Guide: Picked up 92.5% of cereal and 60% of hair on hardwood, but only 76.5% of cereal, 51% of flaxseed and 48% of hair on carpet. Mopping cleared soy sauce, mayonnaise and mud in two passes. It bumped furniture with some force. Source
- TechRadar: About 60 dB on carpet and 69 dB peak when emptying. Mopping was excellent on max settings, it avoided a shoe and sock but got caught on a USB cable. Subscores: Value 5/5, Design 4/5, Performance 4.5/5, App 5/5. Source
- Gizmodo (3.5/5): Cleaned a 750 sq ft apartment in just under two hours with over 50% battery left. It swept up micro USB cables and a child's sock, and the test unit needed a fix for a loose part under the brush. Source
Pros and cons
Dreame L40 Ultra Gen 2
Pros
- Strong stain removal in Vacuum Wars testing
- 90% carpet sand removal
- Efficient, fast navigation
- Long claimed runtime
- Extending mop and side brush
Cons
- Avoided only 2 of 24 obstacles
- 67% long hair wrap
- Weak pet hair pickup
- Detergent dispenser costs extra
- No camera or auto mop removal
Roborock Qrevo 2 Pro
Pros
- Full self cleaning dock for $549.99
- Mops detach so carpets stay dry
- Good mopping on max settings
- Fast, accurate LiDAR mapping
- Matter support
Cons
- Eats cables and small items
- Weak hair pickup on carpet
- Top LiDAR turret blocks low furniture
- Not built for high thresholds
- Ongoing dust bag cost
Questions buyers ask
Which is better, the Dreame L40 Ultra Gen 2 or the Roborock Qrevo 2 Pro?
The Roborock Qrevo 2 Pro has a published review score and ranks #18 in our robot vacuums ranking; the Dreame L40 Ultra Gen 2 is not scored yet. Pick the Dreame L40 Ultra Gen 2 for tidy hard floor homes that want strong mopping. Pick the Roborock Qrevo 2 Pro for hard floor homes on a midrange budget.
Which is cheaper?
The Roborock Qrevo 2 Pro at $550, versus $570 for the Dreame L40 Ultra Gen 2, checked Oct 31, 2026. Over 3 years with running costs: $610 vs $550.
What is the difference between the L40 Ultra Gen 2 and the Qrevo 2 Pro?
Suction: 25,000 Pa claimed (Dreame); Vacuum Wars measured 0.79 kPa bench suction against a 0.99… on the L40 Ultra Gen 2, 20,000 Pa (Roborock store page); Tom's Guide listed 25,000 Pa in its review specs on the Qrevo 2 Pro. Navigation: LDS LiDAR, up to 4 maps (Dreame); Vacuum Wars measured 0.84 m2 per minute, faster than… on the L40 Ultra Gen 2, PreciSense LiDAR on top of the robot (Roborock); Tom's Guide mapped four rooms in about… on the Qrevo 2 Pro. Obstacle avoidance: 3D structured light only; the RGB camera of the original L40 Ultra was removed (Dreame… on the L40 Ultra Gen 2, Structured light Reactive Tech, no camera (Roborock); Gizmodo saw it swallow micro USB… on the Qrevo 2 Pro.
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