Dreame L40 Ultra Gen 2 vs Roborock Qrevo S5V
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 S5V costs $900, so the Dreame L40 Ultra Gen 2 is $330 cheaper. Pick the Dreame L40 Ultra Gen 2 for tidy hard floor homes that want strong mopping. Pick the Roborock Qrevo S5V for carpet and pet hair with hands off mopping.
- 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
- 12,000 Pa
- Navigation
- Top mounted LiDAR
- Mopping
- Dual spinning pads
A strong carpet and pet hair cleaner with a full self washing dock. Vacuum Wars measured 92% sand and 92% pet hair pickup with no hair wrap. It avoided only 6 of 24 test obstacles, so it suits homes where the floor is kept clear.
Full Roborock Qrevo S5V review →Side by side
| Dreame L40 Ultra Gen 2 | Roborock Qrevo S5V | |
|---|---|---|
| Price | $570 | $900 |
| 3 year cost | $610 | $1,002 |
| Our score | Not scored yet | Not scored yet |
| Rank in Floors | #58 | #67 |
| Status | on sale | on sale |
| Warranty | 3 years (Dreame US store) | 1 year limited (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 | 12,000 Pa (Roborock); Vacuum Wars measured 0.47 kPa bench suction against a 0.83 kPa average and 16 CFM airflow |
| Navigation | LDS LiDAR, up to 4 maps (Dreame); Vacuum Wars measured 0.84 m2 per minute, faster than its 0.72 average | Top mounted LiDAR with maps for up to 4 floors (Roborock, Walmart listing) |
| 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% | 3D structured light, no camera; Vacuum Wars recorded 6 of 24 obstacles avoided against a 16.6 average |
| 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 pads on an extending FlexiArm, 10 mm mop lift on carpet, 30 water flow levels (Roborock, Walmart listing) |
| Self empty | Yes, 3.2 L dust bag, up to 100 days (Dreame) | Yes, 2.7 L dust bag, up to 7 weeks (Roborock) |
| 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 | Auto empty, mop wash with spin drying, warm air drying, auto water refill; no hot water wash and no auto detergent (Roborock, Vacuum Wars, Android Authority) |
| 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 | Not published by Roborock; Vacuum Wars estimated about 1,243 sq ft per charge |
| Dustbin | 250 ml robot bin plus 3.2 L dock bag (Dreame) | 325 ml robot bin plus 2.7 L dock bag (Vacuum Wars, Roborock) |
| Height | 3.82 in (97 mm) (Dreame) | 3.80 in (robot 13.78 x 13.9 x 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% | Vacuum Wars measured 92% flattened pet hair pickup and 0% hair wrap |
| App | Dreamehome app with Alexa, Siri, Google Home and Apple Watch; Matter planned in an update (Dreame) | Roborock app; works with Alexa, Google Assistant and Siri Shortcuts; 2.4 GHz Wi-Fi only (Roborock) |
| Threshold | 0.79 in (2 cm) (Dreame) | Up to 2 cm (Roborock) |
| Noise | Vacuum Chef measured 73 dB at max suction, about average | n/a |
| Best for | tidy hard floor homes that want strong mopping | carpet and pet hair with hands off mopping |
| Skip if | you have pets with long hair or a cluttered floor | your floors are cluttered with cables and socks |
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 S5V
- Vacuum Wars (3.30 Vacuum Wars stars): Removed 92% of embedded sand and 92% of flattened pet hair with 0% hair wrap. Dried stain score was 120 against a 93 average. It avoided 6 of 24 obstacles and estimated coverage was about 1,243 sq ft per charge. Source
- Android Authority: Editor's Choice. The reviewer expected 7 to 9 weeks between bag changes and about 750 sq ft of mopping per tank fill. It lacks auto detergent and bunched up bath mats. 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 S5V
Pros
- 92% sand and 92% pet hair pickup in Vacuum Wars testing
- No hair wrap in the 7 inch hair test
- Dock washes, dries, refills and empties
- Above average dried stain mopping score
- Extending mop arm for edges
Cons
- Avoided 6 of 24 test obstacles
- No hot water mop washing
- No auto detergent dosing
- Small 325 ml robot bin
- Only a 1 year warranty
Questions buyers ask
Which is better, the Dreame L40 Ultra Gen 2 or the Roborock Qrevo S5V?
Pick the Dreame L40 Ultra Gen 2 for tidy hard floor homes that want strong mopping. Pick the Roborock Qrevo S5V for carpet and pet hair with hands off mopping.
Which is cheaper?
The Dreame L40 Ultra Gen 2 at $570, versus $900 for the Roborock Qrevo S5V, checked Oct 31, 2026. Over 3 years with running costs: $610 vs $1,002.
What is the difference between the L40 Ultra Gen 2 and the Qrevo S5V?
Suction: 25,000 Pa claimed (Dreame); Vacuum Wars measured 0.79 kPa bench suction against a 0.99… on the L40 Ultra Gen 2, 12,000 Pa (Roborock); Vacuum Wars measured 0.47 kPa bench suction against a 0.83 kPa… on the Qrevo S5V. Navigation: LDS LiDAR, up to 4 maps (Dreame); Vacuum Wars measured 0.84 m2 per minute, faster than… on the L40 Ultra Gen 2, Top mounted LiDAR with maps for up to 4 floors (Roborock, Walmart listing) on the Qrevo S5V. Obstacle avoidance: 3D structured light only; the RGB camera of the original L40 Ultra was removed (Dreame… on the L40 Ultra Gen 2, 3D structured light, no camera; Vacuum Wars recorded 6 of 24 obstacles avoided against a… on the Qrevo S5V.
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