# Dreame L40s Ultra vs Roborock Qrevo S5V

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.

Prices checked Oct 31, 2026. HTML version: https://robotsforthat.com/vs/dreame-l40s-ultra-vs-roborock-qrevo-s5v/

## 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 |

## 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](https://vacuumwars.com/dreame-l40s-series-review/)
- 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](https://vacuumchef.com/dreame-l40s-ultra-review-powerful-suction-smart-mopping-real-world-performance-tested/?amp=1)

### 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](https://vacuumwars.com/roborock-qrevo-s5v-review/)
- 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](https://www.androidauthority.com/roborock-qrevo-s5v-review-3576054)

## 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.

Full reviews: [Dreame L40s Ultra](https://robotsforthat.com/robot/dreame-l40s-ultra/index.md), [Roborock Qrevo S5V](https://robotsforthat.com/robot/roborock-qrevo-s5v/index.md)