Dreame D30 Ultra vs Dreame L40 Ultra Gen 2
Researched by Riley Hart · prices checked Oct 31, 2026
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.
- Suction
- 25,000 Pa claimed
- Navigation
- LiDAR
- Mopping
- Dual spinning mops
- Runtime
- Up to 230 min and 1,679
A low cost way to get auto empty and mop washing with long battery life. Vacuum Wars measured strong carpet cleaning and about 1,831 sq ft per charge. Skip it if you have pets or clutter, since it avoided only 8 of 24 objects and struggled with stains and pet hair.
Full Dreame D30 Ultra review →- Suction
- 25,000 Pa claimed
- Navigation
- LDS LiDAR
- Mopping
- Dual spinning mops
- Runtime
- Up to 231 min in quiet
A capable mopper with a full dock for about $500 to $570, but a step back from the original L40 Ultra in obstacle avoidance. Vacuum Wars saw it avoid only 2 of 24 objects and wrap 67% of long hair. Pick it only for tidy homes without long hair; Vacuum Wars itself points pet owners to the L40s Ultra.
Full Dreame L40 Ultra Gen 2 review →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 |
Specs are maker claims unless a reviewer is named. Prices from the stores we link, checked daily.
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
- 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
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
- 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
Pros and cons
Dreame D30 Ultra
Pros
- Long coverage per charge
- Above average carpet deep clean
- Efficient LiDAR navigation
- Mop pads extend and lift
- Full dock under $550
Cons
- Avoided only 8 of 24 obstacles
- Weak on dried and coffee stains
- 61% pet hair pickup
- No detergent dosing listed
- Small 300 ml bin
Dreame L40 Ultra Gen 2
Pros
- Strong stain removal in Vacuum Wars testing
- 90% carpet sand removal
- Efficient, fast navigation
- Long claimed runtime
- Extending mop and side brush
Cons
- Avoided only 2 of 24 obstacles
- 67% long hair wrap
- Weak pet hair pickup
- Detergent dispenser costs extra
- No camera or auto mop removal
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.
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