# Dreame D30 Ultra vs Dreame L40 Ultra Gen 2

As of Oct 31, 2026, the Dreame D30 Ultra costs $540 and the Dreame L40 Ultra Gen 2 costs $570, so the Dreame D30 Ultra is $30 cheaper. Pick the Dreame D30 Ultra for large, tidy homes on a budget. Pick the Dreame L40 Ultra Gen 2 for tidy hard floor homes that want strong mopping.

Prices checked Oct 31, 2026. HTML version: https://robotsforthat.com/vs/dreame-d30-ultra-vs-dreame-l40-ultra-gen-2/

## Side by side

| | Dreame D30 Ultra | Dreame L40 Ultra Gen 2 |
|---|---|---|
| Price | $540 | $570 |
| 3 year cost | $540 | $610 |
| Our score | Not scored yet | Not scored yet |
| Rank in Floors | #57 | #58 |
| Status | on sale | on sale |
| Warranty | 3 years (Dreame US store) | 3 years (Dreame US store) |
| Suction | 25,000 Pa claimed (Dreame); Vacuum Wars measured a 0.95 bench suction score against a 0.99 average | 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 |
| Navigation | LiDAR with up to 4 maps (Dreame); Vacuum Wars measured 0.83 m2 per minute against a 0.71 average | LDS LiDAR, up to 4 maps (Dreame); Vacuum Wars measured 0.84 m2 per minute, faster than its 0.72 average |
| Obstacle avoidance | 3DAdapt structured light, no camera (Dreame); Vacuum Wars saw it avoid 8 of 24 objects against a 16 average | 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% |
| Mopping | Dual spinning mops, 10.5 mm lift, 4 cm extension (Dreame); Vacuum Wars scored dried stains 60 and coffee 40 against 108 and 94 averages | Dual spinning mops, 10.5 mm lift, 4 cm extension, no auto removal (Dreame); Vacuum Wars scored dried stains 144 against a 108 average |
| Self empty | Yes, 3.2 L dust bag, up to 100 days (Dreame) | Yes, 3.2 L dust bag, up to 100 days (Dreame) |
| Dock features | Auto empty, mop wash with 20 spray nozzles, air drying, 4.5 L clean and 4.0 L dirty tanks (Dreame); detergent dosing not mentioned | 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 |
| Runtime | Up to 230 min and 1,679 sq ft in quiet vacuum mode (Dreame); Vacuum Wars estimated about 1,831 sq ft per charge against a 1,170 average | 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 |
| Dustbin | 300 ml (Dreame, Vacuum Wars) | 250 ml robot bin plus 3.2 L dock bag (Dreame) |
| Height | 3.81 in (97 mm) (Dreame) | 3.82 in (97 mm) (Dreame) |
| Pet hair | TriCut brush (Dreame); Vacuum Wars measured 61% flattened pet hair pickup and 25% hair wrap | Vacuum Wars measured 69% flattened pet hair pickup and 67% hair wrap on its 7 in hair test; carpet sand removal was 90% |
| App | Dreamehome app with no go and pet zones; third party voice assistants (Dreame) | Dreamehome app with Alexa, Siri, Google Home and Apple Watch; Matter planned in an update (Dreame) |
| Threshold | 0.79 in (20 mm) (Dreame) | 0.79 in (2 cm) (Dreame) |
| Noise | n/a | Vacuum Chef measured 73 dB at max suction, about average |
| Best for | large, tidy homes on a budget | tidy hard floor homes that want strong mopping |
| Skip if | you need good stain mopping or pet hair pickup | you have pets with long hair or a cluttered floor |

## What reviewers found

### Dreame D30 Ultra

- Vacuum Wars (3.29 Vacuum Wars stars): Carpet deep clean score 84 (78 average), estimated 1,831 sq ft per charge, but 61% pet hair pickup, 8 of 24 obstacles avoided, and stain scores of 60 (dried) and 40 (coffee) against 108 and 94 averages. [Source](https://vacuumwars.com/dreame-d30-ultra-review/)
- Fone Arena: India review of the same 25,000 Pa model: praised the 4 cm MopExtend arm, self cleaning washboard and fast charging, cleaning 120 to 140 m2 per pass in vacuum and mop mode; noted the TriCut brush is sold separately in most regions. [Source](https://www.fonearena.com/blog/490844/dreame-d30-ultra-review.html)

### 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)

## Questions buyers ask

### Which is better, the Dreame D30 Ultra or the Dreame L40 Ultra Gen 2?

Pick the Dreame D30 Ultra for large, tidy homes on a budget. Pick the Dreame L40 Ultra Gen 2 for tidy hard floor homes that want strong mopping.

### Which is cheaper?

The Dreame D30 Ultra at $540, versus $570 for the Dreame L40 Ultra Gen 2, checked Oct 31, 2026. Over 3 years with running costs: $540 vs $610.

### What is the difference between the D30 Ultra and the L40 Ultra Gen 2?

Suction: 25,000 Pa claimed (Dreame); Vacuum Wars measured a 0.95 bench suction score against a… on the D30 Ultra, 25,000 Pa claimed (Dreame); Vacuum Wars measured 0.79 kPa bench suction against a 0.99… on the L40 Ultra Gen 2. Navigation: LiDAR with up to 4 maps (Dreame); Vacuum Wars measured 0.83 m2 per minute against a 0.71… on the D30 Ultra, LDS LiDAR, up to 4 maps (Dreame); Vacuum Wars measured 0.84 m2 per minute, faster than… on the L40 Ultra Gen 2. Obstacle avoidance: 3DAdapt structured light, no camera (Dreame); Vacuum Wars saw it avoid 8 of 24 objects… on the D30 Ultra, 3D structured light only; the RGB camera of the original L40 Ultra was removed (Dreame… on the L40 Ultra Gen 2.

Full reviews: [Dreame D30 Ultra](https://robotsforthat.com/robot/dreame-d30-ultra/index.md), [Dreame L40 Ultra Gen 2](https://robotsforthat.com/robot/dreame-l40-ultra-gen-2/index.md)