Dreame L40s Ultra vs Roborock Qrevo S5V
Researched by Riley Hart · prices checked Oct 31, 2026
As of Oct 31, 2026, the Dreame L40s Ultra costs $570 and the Roborock Qrevo S5V costs $900, so the Dreame L40s Ultra is $330 cheaper. The Dreame L40s Ultra has a published review score and ranks #9 in our robot vacuums ranking; the Roborock Qrevo S5V is not scored yet. Pick the Dreame L40s Ultra for pet owners with carpet on a budget. Pick the Roborock Qrevo S5V for carpet and pet hair with hands off mopping.
- Suction
- 19,000 Pa claimed
- Navigation
- LDS LiDAR
- Mopping
- Dual spinning mops
- Runtime
- Up to 220 min in quiet
The best carpet and pet hair performer of the L40s range, with a hot water mop dock, now far below its $1,399.99 launch price. Vacuum Wars measured 92% sand removal and 91% pet hair pickup with no tangles. Skip it if your floors are cluttered, since it avoided only 7 of 24 objects.
Full Dreame L40s Ultra 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 L40s Ultra | Roborock Qrevo S5V | |
|---|---|---|
| Price | $570 | $900 |
| 3 year cost | $570 | $1,002 |
| Our score | 8.6/10 | Not scored yet |
| Rank in Floors | #9 | #67 |
| Status | on sale | on sale |
| Warranty | 3 years (Dreame US store) | 1 year limited (Roborock US store) |
| Suction | 19,000 Pa claimed (Dreame); Vacuum Chef measured 490 FPM carpet airflow, well above 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 with Pathfinder, 4 maps (Dreame); Vacuum Wars measured 0.85 m2 per minute | Top mounted LiDAR with maps for up to 4 floors (Roborock, Walmart listing) |
| Obstacle avoidance | 3D structured light only, no camera or object count (Dreame); Vacuum Wars saw it avoid 7 of 24 objects | 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, extend and auto removal (Dreame); Vacuum Wars measured 0.95 g water left and a 259 combined mop score | 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, 167 F (75 C) hot water mop wash, hot air drying, self cleaning washboard, auto detergent and water refill, 4.5 L clean and 4.0 L dirty tanks; water hookup kit sold separately (Dreame) | 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 220 min in quiet mode from 5,200 mAh (Dreame); Vacuum Wars estimated about 1,935 sq ft per charge | Not published by Roborock; Vacuum Wars estimated about 1,243 sq ft per charge |
| Dustbin | 310 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 (Dreame) | 3.80 in (robot 13.78 x 13.9 x 3.80 in, Roborock) |
| Pet hair | HyperStream Detangling DuoBrush (Dreame); Vacuum Wars measured 91% pet hair pickup, 92% carpet sand removal and 0% hair wrap | Vacuum Wars measured 92% flattened pet hair pickup and 0% hair wrap |
| App | Dreamehome app with third party voice assistants only (Dreame); Vacuum Chef notes no built in voice assistant or live video | Roborock app; works with Alexa, Google Assistant and Siri Shortcuts; 2.4 GHz Wi-Fi only (Roborock) |
| Threshold | 1.57 in double layer and 0.87 in single steps (Dreame) | Up to 2 cm (Roborock) |
| Noise | Vacuum Chef measured 78 dB at max suction | n/a |
| Best for | pet owners with carpet on a budget | carpet and pet hair with hands off mopping |
| Skip if | your floor often has cables, socks or toys | 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 L40s Ultra
- Vacuum Wars (3.51 Vacuum Wars stars): 92% carpet sand removal, 91% pet hair pickup and 0% hair wrap with the DuoBrush, about 1,935 sq ft per charge, but only 7 of 24 obstacles avoided. Source
- Vacuum Chef (95/100): Scored 95/100 in its real world cleaning tests, measured 490 FPM carpet airflow and 78 dB at max suction. Obstacle avoidance varied by floor and object. 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 L40s Ultra
Pros
- 92% carpet sand removal in Vacuum Wars testing
- 91% pet hair pickup, no tangles
- Extending side brush and mop
- Mop pads detach before carpet
- Deep discount from launch price
Cons
- Avoided only 7 of 24 obstacles
- No camera
- Loud at max, 78 dB in Vacuum Chef testing
- No built in voice assistant
- Bulky base station
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 L40s Ultra or the Roborock Qrevo S5V?
The Dreame L40s Ultra has a published review score and ranks #9 in our robot vacuums ranking; the Roborock Qrevo S5V is not scored yet. Pick the Dreame L40s Ultra for pet owners with carpet on a budget. Pick the Roborock Qrevo S5V for carpet and pet hair with hands off mopping.
Which is cheaper?
The Dreame L40s Ultra at $570, versus $900 for the Roborock Qrevo S5V, checked Oct 31, 2026. Over 3 years with running costs: $570 vs $1,002.
What is the difference between the L40s Ultra and the Qrevo S5V?
Suction: 19,000 Pa claimed (Dreame); Vacuum Chef measured 490 FPM carpet airflow, well above… on the L40s Ultra, 12,000 Pa (Roborock); Vacuum Wars measured 0.47 kPa bench suction against a 0.83 kPa… on the Qrevo S5V. Navigation: LDS LiDAR with Pathfinder, 4 maps (Dreame); Vacuum Wars measured 0.85 m2 per minute on the L40s Ultra, Top mounted LiDAR with maps for up to 4 floors (Roborock, Walmart listing) on the Qrevo S5V. Obstacle avoidance: 3D structured light only, no camera or object count (Dreame); Vacuum Wars saw it avoid 7… on the L40s Ultra, 3D structured light, no camera; Vacuum Wars recorded 6 of 24 obstacles avoided against a… on the Qrevo S5V.
Also consider
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