# Dreame D30 Ultra vs Dreame L40s Ultra

As of Oct 31, 2026, the Dreame D30 Ultra costs $540 and the Dreame L40s Ultra costs $570, so the Dreame D30 Ultra is $30 cheaper. The Dreame L40s Ultra has a published review score and ranks #9 in our robot vacuums ranking; the Dreame D30 Ultra is not scored yet. Pick the Dreame D30 Ultra for large, tidy homes on a budget. Pick the Dreame L40s Ultra for pet owners with carpet on a budget.

Prices checked Oct 31, 2026. HTML version: https://robotsforthat.com/vs/dreame-d30-ultra-vs-dreame-l40s-ultra/

## Side by side

| | Dreame D30 Ultra | Dreame L40s Ultra |
|---|---|---|
| Price | $540 | $570 |
| 3 year cost | $540 | $570 |
| Our score | Not scored yet | 8.6/10 |
| Rank in Floors | #57 | #9 |
| 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 | 19,000 Pa claimed (Dreame); Vacuum Chef measured 490 FPM carpet airflow, well above average |
| Navigation | LiDAR with up to 4 maps (Dreame); Vacuum Wars measured 0.83 m2 per minute against a 0.71 average | LDS LiDAR with Pathfinder, 4 maps (Dreame); Vacuum Wars measured 0.85 m2 per minute |
| 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, no camera or object count (Dreame); Vacuum Wars saw it avoid 7 of 24 objects |
| 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, extend and auto removal (Dreame); Vacuum Wars measured 0.95 g water left and a 259 combined mop score |
| 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, 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) |
| 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 220 min in quiet mode from 5,200 mAh (Dreame); Vacuum Wars estimated about 1,935 sq ft per charge |
| Dustbin | 300 ml (Dreame, Vacuum Wars) | 310 ml robot bin plus 3.2 L dock bag (Dreame) |
| Height | 3.81 in (97 mm) (Dreame) | 3.82 in (Dreame) |
| Pet hair | TriCut brush (Dreame); Vacuum Wars measured 61% flattened pet hair pickup and 25% hair wrap | HyperStream Detangling DuoBrush (Dreame); Vacuum Wars measured 91% pet hair pickup, 92% carpet sand removal and 0% hair wrap |
| App | Dreamehome app with no go and pet zones; third party voice assistants (Dreame) | Dreamehome app with third party voice assistants only (Dreame); Vacuum Chef notes no built in voice assistant or live video |
| Threshold | 0.79 in (20 mm) (Dreame) | 1.57 in double layer and 0.87 in single steps (Dreame) |
| Noise | n/a | Vacuum Chef measured 78 dB at max suction |
| Best for | large, tidy homes on a budget | pet owners with carpet on a budget |
| Skip if | you need good stain mopping or pet hair pickup | your floor often has cables, socks or toys |

## 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 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)

## Questions buyers ask

### Which is better, the Dreame D30 Ultra or the Dreame L40s Ultra?

The Dreame L40s Ultra has a published review score and ranks #9 in our robot vacuums ranking; the Dreame D30 Ultra is not scored yet. Pick the Dreame D30 Ultra for large, tidy homes on a budget. Pick the Dreame L40s Ultra for pet owners with carpet on a budget.

### Which is cheaper?

The Dreame D30 Ultra at $540, versus $570 for the Dreame L40s Ultra, checked Oct 31, 2026. Over 3 years with running costs: $540 vs $570.

### What is the difference between the D30 Ultra and the L40s Ultra?

Suction: 25,000 Pa claimed (Dreame); Vacuum Wars measured a 0.95 bench suction score against a… on the D30 Ultra, 19,000 Pa claimed (Dreame); Vacuum Chef measured 490 FPM carpet airflow, well above… on the L40s Ultra. 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 with Pathfinder, 4 maps (Dreame); Vacuum Wars measured 0.85 m2 per minute on the L40s Ultra. 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, no camera or object count (Dreame); Vacuum Wars saw it avoid 7… on the L40s Ultra.

Full reviews: [Dreame D30 Ultra](https://robotsforthat.com/robot/dreame-d30-ultra/index.md), [Dreame L40s Ultra](https://robotsforthat.com/robot/dreame-l40s-ultra/index.md)