# Dreame L40 Ultra Gen 2 vs Dreame L50 Ultra

As of Oct 31, 2026, the Dreame L40 Ultra Gen 2 costs $570 and the Dreame L50 Ultra costs $900, so the Dreame L40 Ultra Gen 2 is $330 cheaper. The Dreame L50 Ultra has a published review score and ranks #28 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 Dreame L50 Ultra for mixed floors with tall thresholds.

Prices checked Oct 31, 2026. HTML version: https://robotsforthat.com/vs/dreame-l40-ultra-gen-2-vs-dreame-l50-ultra/

## Side by side

| | Dreame L40 Ultra Gen 2 | Dreame L50 Ultra |
|---|---|---|
| Price | $570 | $900 |
| 3 year cost | $610 | $1,194 |
| Our score | Not scored yet | 6.4/10 |
| Rank in Floors | #58 | #28 |
| Status | on sale | on sale |
| Warranty | 3 years (Dreame US store) | 3 years per the Dreame US product page (terms may vary by region) |
| 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 | 19,500 Pa Vormax (brand claim); Vacuum Wars did not publish airflow for this model |
| Navigation | LDS LiDAR, up to 4 maps (Dreame); Vacuum Wars measured 0.84 m2 per minute, faster than its 0.72 average | LiDAR laser navigation |
| 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% | RGB camera plus 3D structured light with LED lights, 180+ object types (brand claim); Vacuum Wars scored 20 of 24 objects avoided |
| 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 | Yes, dual spinning pads with one extending pad, 10.5 mm lift on carpet and automatic pad removal |
| Self empty | Yes, 3.2 L dust bag, up to 100 days (Dreame) | Yes, into a 3.2 L disposable bag that Dreame says lasts up to 100 days |
| 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 | Washes pads with water up to 167°F (4 settings), hot air drying, auto refill, auto detergent dosing, self cleaning washboard with 20 nozzles |
| 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 | 6,400 mAh battery; up to 200 min in quiet mode (brand claim) |
| Dustbin | 250 ml robot bin plus 3.2 L dock bag (Dreame) | 395 mL onboard bin per Dreame (Vacuum Wars lists 400 mL) |
| Height | 3.82 in (97 mm) (Dreame) | 97 mm (3.8 in) robot height per Dreame |
| 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% | HyperStream detangling DuoBrush; Vacuum Wars measured 100% flattened pet hair pickup |
| App | Dreamehome app with Alexa, Siri, Google Home and Apple Watch; Matter planned in an update (Dreame) | Dreamehome app; works with Alexa, Siri and Google Home, Matter promised in a future update |
| Threshold | 0.79 in (2 cm) (Dreame) | 1.65 in single step and 2.36 in double step (brand claim); Vacuum Wars measured 42 mm single, tied for the highest it tested |
| Noise | Vacuum Chef measured 73 dB at max suction, about average | n/a |
| Best for | tidy hard floor homes that want strong mopping | mixed floors with tall thresholds |
| Skip if | you have pets with long hair or a cluttered floor | you have a large home and want one charge to cover it |

## 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](https://vacuumwars.com/dreame-l40-ultra-gen-2-review/)
- 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](https://vacuumchef.com/?p=12466)

### Dreame L50 Ultra

- Vacuum Wars (3.84/5): Measured 90% carpet sand removal, 100% pet hair pickup, 20 of 24 obstacles avoided, a 211 point mopping score versus a 188 average with 0.35 g of water left, and a 42 mm threshold climb; coverage was below average at about 823 sq ft per charge. [Source](https://vacuumwars.com/dreame-l50-ultra-robot-vacuum-review)
- Vacuum Wars (3 month test): After three months of daily use with kids and a heavy shedding dog, mapping and obstacle avoidance held up, but hair formed clumps, the dock and bin clogged about once a week, and the app did not warn of clogs. [Source](https://vacuumwars.com/dreame-l50-ultra-review-3-months)
- RTINGS: In RTINGS' comparison with the L40 Ultra, the L50 Ultra handled pet hair better and had stronger obstacle avoidance and threshold clearance, while the L40 Ultra cleaned hard floors and carpet better. We could not read RTINGS' numeric scores. [Source](https://www.rtings.com/robot-vacuum/tools/compare/dreame-l40-ultra-dreame-l50-ultra/74370/103657)

## Questions buyers ask

### Which is better, the Dreame L40 Ultra Gen 2 or the Dreame L50 Ultra?

The Dreame L50 Ultra has a published review score and ranks #28 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 Dreame L50 Ultra for mixed floors with tall thresholds.

### Which is cheaper?

The Dreame L40 Ultra Gen 2 at $570, versus $900 for the Dreame L50 Ultra, checked Oct 31, 2026. Over 3 years with running costs: $610 vs $1,194.

### What is the difference between the L40 Ultra Gen 2 and the L50 Ultra?

Suction: 25,000 Pa claimed (Dreame); Vacuum Wars measured 0.79 kPa bench suction against a 0.99… on the L40 Ultra Gen 2, 19,500 Pa Vormax (brand claim); Vacuum Wars did not publish airflow for this model on the L50 Ultra. Navigation: LDS LiDAR, up to 4 maps (Dreame); Vacuum Wars measured 0.84 m2 per minute, faster than… on the L40 Ultra Gen 2, LiDAR laser navigation on the L50 Ultra. Obstacle avoidance: 3D structured light only; the RGB camera of the original L40 Ultra was removed (Dreame… on the L40 Ultra Gen 2, RGB camera plus 3D structured light with LED lights, 180+ object types (brand claim)… on the L50 Ultra.

Full reviews: [Dreame L40 Ultra Gen 2](https://robotsforthat.com/robot/dreame-l40-ultra-gen-2/index.md), [Dreame L50 Ultra](https://robotsforthat.com/robot/dreame-l50-ultra/index.md)