# Dreame L40s Ultra AE vs Roborock Qrevo S5V

As of Oct 31, 2026, the Dreame L40s Ultra AE costs $670 and the Roborock Qrevo S5V costs $900, so the Dreame L40s Ultra AE is $230 cheaper. The Dreame L40s Ultra AE has a published review score and ranks #16 in our robot vacuums ranking; the Roborock Qrevo S5V is not scored yet. Pick the Dreame L40s Ultra AE for large mixed floor homes on a mid 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-ae-vs-roborock-qrevo-s5v/

## Side by side

| | Dreame L40s Ultra AE | Roborock Qrevo S5V |
|---|---|---|
| Price | $670 | $900 |
| 3 year cost | $670 | $1,002 |
| Our score | 7.2/10 | Not scored yet |
| Rank in Floors | #16 | #67 |
| Status | on sale | on sale |
| Warranty | 3 years (Dreame US store) | 1 year limited (Roborock US store) |
| Suction | 19,000 Pa claimed (Dreame) | 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 (Dreame); Vacuum Wars measured 0.87 m2 per minute against a 0.70 average | Top mounted LiDAR with maps for up to 4 floors (Roborock, Walmart listing) |
| Obstacle avoidance | RGB AI camera plus 3D structured light, 120+ obstacle types (Dreame); Vacuum Wars saw it avoid 19 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, MopExtend (Dreame); Vacuum Wars measured only 0.35 g of water left behind and a 269 combined mop score against a 188 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, 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 180 min and 1,808 sq ft (Dreame); Vacuum Wars estimated about 2,462 sq ft per charge | Not published by Roborock; Vacuum Wars estimated about 1,243 sq ft per charge |
| Dustbin | 395 ml on the product page, but Dreame's comparison table lists 300 ml or more | 325 ml robot bin plus 2.7 L dock bag (Vacuum Wars, Roborock) |
| Height | 97 mm (Dreame dimensions) | 3.80 in (robot 13.78 x 13.9 x 3.80 in, Roborock) |
| Pet hair | Liftable rubber brush plus TriCut Brush 3.0 (Dreame); Vacuum Wars measured 81% pet hair pickup and 0% hair wrap with the TriCut brush | Vacuum Wars measured 92% flattened pet hair pickup and 0% hair wrap |
| App | Dreamehome app with Alexa, Google Home, Siri and Apple Watch (Dreame); Matter support (Just A Dad Approved) | Roborock app; works with Alexa, Google Assistant and Siri Shortcuts; 2.4 GHz Wi-Fi only (Roborock) |
| Threshold | 20 mm (Dreame) | Up to 2 cm (Roborock) |
| Best for | large mixed floor homes on a mid budget | carpet and pet hair with hands off mopping |
| Skip if | corner cleaning and heavy pet hair matter most | your floors are cluttered with cables and socks |

## What reviewers found

### Dreame L40s Ultra AE

- Vacuum Wars (3.52 Vacuum Wars stars): 85% carpet sand removal, 81% pet hair pickup, 0% hair wrap, 19 of 24 obstacles avoided and about 2,462 sq ft per charge against a 1,015 average. Named Best Value of the Year. [Source](https://vacuumwars.com/dreame-l40s-series-review/)
- Just A Dad Approved (7.9/10): After 90+ days of home testing, liked the AI camera, included TriCut brush and low upkeep, but said corners get less attention without an extending side brush and recommended buying only on deep sale. Its bottom line text names a different model, so treat the score with care. [Source](https://justadadapproved.com/product/dreame-l40s-ultra-ae-robot/)

### 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 AE or the Roborock Qrevo S5V?

The Dreame L40s Ultra AE has a published review score and ranks #16 in our robot vacuums ranking; the Roborock Qrevo S5V is not scored yet. Pick the Dreame L40s Ultra AE for large mixed floor homes on a mid budget. Pick the Roborock Qrevo S5V for carpet and pet hair with hands off mopping.

### Which is cheaper?

The Dreame L40s Ultra AE at $670, versus $900 for the Roborock Qrevo S5V, checked Oct 31, 2026. Over 3 years with running costs: $670 vs $1,002.

### What is the difference between the L40s Ultra AE and the Qrevo S5V?

Suction: 19,000 Pa claimed (Dreame) on the L40s Ultra AE, 12,000 Pa (Roborock); Vacuum Wars measured 0.47 kPa bench suction against a 0.83 kPa… on the Qrevo S5V. Navigation: LDS LiDAR (Dreame); Vacuum Wars measured 0.87 m2 per minute against a 0.70 average on the L40s Ultra AE, Top mounted LiDAR with maps for up to 4 floors (Roborock, Walmart listing) on the Qrevo S5V. Obstacle avoidance: RGB AI camera plus 3D structured light, 120+ obstacle types (Dreame); Vacuum Wars saw it… on the L40s Ultra AE, 3D structured light, no camera; Vacuum Wars recorded 6 of 24 obstacles avoided against a… on the Qrevo S5V.

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