Dreame L10s Ultra Gen 2 vs Dreame L40s Ultra
Researched by Riley Hart · prices checked Nov 4, 2026
As of Nov 4, 2026, the Dreame L10s Ultra Gen 2 costs $590 and the Dreame L40s Ultra costs $500, so the Dreame L40s Ultra is $90 cheaper. The Dreame L40s Ultra scores higher in our ranking (8.8 vs 7.8 out of 10). Pick the Dreame L10s Ultra Gen 2 for budget buyers who want a full auto dock. Pick the Dreame L40s Ultra for pet owners with carpet on a budget. The Dreame L40s Ultra wins 5 of 8 points we can measure (2 tied).
Who wins, point by point
The Dreame L40s Ultra wins 5 of 8 points we can measure (2 tied). Built from today's prices, the specs and independent tests for these two robots.
| L10s Ultra Gen 2 | L40s Ultra | Winner | |
|---|---|---|---|
| Price today | $590 | $500 | L40s Ultra |
| 3 year cost | $680 | $500 | L40s Ultra |
| Warranty | 3 years | 3 years | Tie |
| Suction | 10,000 Pa | 19,000 Pa | L40s Ultra |
| Runtime per charge | 4 h | 220 min | L10s Ultra Gen 2 |
| Onboard bin | 300 mL | 310 mL | L40s Ultra |
| Climbs thresholds up to | 0.8 in | 1.57 in | L40s Ultra |
| Robot height (fits under furniture) | 3.83 in | 3.82 in | Tie |
- You care most about runtime per charge (4 h vs 220 min)
- Best for budget buyers who want a full auto dock
- You want to spend less (saves $90)
- You care most about suction (19,000 Pa vs 10,000 Pa)
- You care most about onboard bin (310 mL vs 300 mL)
- Best for pet owners with carpet on a budget
- Suction
- 10,000 Pa claimed
- Navigation
- Top mounted LiDAR
- Mopping
- Twin spinning pads
- Runtime
- Up to 240 min in Quiet
Full auto dock with mop wash and bag empty for under $400
Full Dreame L10s Ultra Gen 2 review, pros and cons →- Suction
- 19,000 Pa claimed
- Navigation
- LDS LiDAR
- Mopping
- Dual spinning mops
- Runtime
- Up to 220 min in quiet
Strong pet hair cleaner with a full dock at a deep discount
Full Dreame L40s Ultra review, pros and cons →Side by side
| Dreame L10s Ultra Gen 2 | Dreame L40s Ultra | |
|---|---|---|
| Price | $590 | $500 |
| 3 year cost | $680 | $500 |
| Our score | 7.8/10 | 8.8/10 |
| Rank in Floors | #14 | #6 |
| Status | on sale | on sale |
| Warranty | 3 years (Dreame US store) | 3 years (Dreame US store) |
| Suction | 10,000 Pa claimed with four to five levels (Dreame, Stuff); no lab suction measurement found | 19,000 Pa claimed (Dreame); Vacuum Chef measured 490 FPM carpet airflow, well above average |
| Navigation | Top mounted LiDAR (Stuff); Tom's Guide found its AI routing unpredictable and incomplete in coverage | LDS LiDAR with Pathfinder, 4 maps (Dreame); Vacuum Wars measured 0.85 m2 per minute |
| Obstacle avoidance | 3DAdapt and Smart Pathfinder claimed (Dreame); Tom's Guide saw it often bump walls and larger objects | 3D structured light only, no camera or object count (Dreame); Vacuum Wars saw it avoid 7 of 24 objects |
| Mopping | Twin spinning pads with MopExtend edge reach, 32 wetness levels and 10.5 mm mop lift (Dreame, Tom's Guide); Stuff needed extra passes for tomato sauce | 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, 75 days claimed (Vacuum Wars spec page); Tom's Guide and Stuff say about two months in use | Yes, 3.2 L dust bag, up to 100 days (Dreame) |
| Dock features | Auto empty, mop washing, auto detergent dispensing, clean and dirty water tanks (Tom's Guide, Stuff) | 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 240 min in Quiet mode (Dreame lab data) | 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 robot bin (Dreame) | 310 ml robot bin plus 3.2 L dock bag (Dreame) |
| Height | 3.83 in (97.2 mm) (Dreame); Stuff notes the LiDAR knob blocks low furniture | 3.82 in (Dreame) |
| Pet hair | Tom's Guide scored pet hair pickup 70% on hardwood and 80% on carpet | HyperStream Detangling DuoBrush (Dreame); Vacuum Wars measured 91% pet hair pickup, 92% carpet sand removal and 0% hair wrap |
| App | Dreame app with no go zones and CleanGenius auto settings; works with Alexa, Google Home and Siri (Tom's Guide) | Dreamehome app with third party voice assistants only (Dreame); Vacuum Chef notes no built in voice assistant or live video |
| Threshold | 2 cm claimed (Dreame); Tom's Guide saw it struggle with a 1.4 cm threshold before crossing | 1.57 in double layer and 0.87 in single steps (Dreame) |
| Noise | Not measured; Tom's Guide found it fairly quiet but noisy on harder debris | Vacuum Chef measured 78 dB at max suction |
| Best for | budget buyers who want a full auto dock | pet owners with carpet on a budget |
| Skip if | your floors are cluttered or you need precise edge cleaning | your floor often has cables, socks or toys |
Specs are maker claims unless a reviewer is named. Prices from the stores we link, checked daily.
What reviewers found
Dreame L10s Ultra Gen 2
- Tom's Guide: Scored 85% overall pickup: Cheerios 80% on hardwood and 90% on carpet, kitty litter 95% on both, pet hair 70% on hardwood and 80% on carpet. Bumped into walls and large objects and CleanGenius mistook wood grain for stains. Source
- Stuff (South Africa) (8.5/10): Reliable LiDAR navigation and low maintenance, never needed a mid clean recharge in a small flat. Tomato sauce stains needed extra passes and the top knob blocked low furniture. Subscores Design 8, Performance 9, Features 9, Value 8. Source
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
- 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
Questions buyers ask
Which is better, the Dreame L10s Ultra Gen 2 or the Dreame L40s Ultra?
The Dreame L40s Ultra scores higher in our ranking (8.8 vs 7.8 out of 10). Pick the Dreame L10s Ultra Gen 2 for budget buyers who want a full auto dock. Pick the Dreame L40s Ultra for pet owners with carpet on a budget.
Which is cheaper?
The Dreame L40s Ultra at $500, versus $590 for the Dreame L10s Ultra Gen 2, checked Nov 4, 2026. Over 3 years with running costs: $680 vs $500.
What is the difference between the L10s Ultra Gen 2 and the L40s Ultra?
Suction: 10,000 Pa claimed with four to five levels (Dreame, Stuff); no lab suction measurement… on the L10s Ultra Gen 2, 19,000 Pa claimed (Dreame); Vacuum Chef measured 490 FPM carpet airflow, well above… on the L40s Ultra. Navigation: Top mounted LiDAR (Stuff); Tom's Guide found its AI routing unpredictable and incomplete… on the L10s Ultra Gen 2, LDS LiDAR with Pathfinder, 4 maps (Dreame); Vacuum Wars measured 0.85 m2 per minute on the L40s Ultra. Obstacle avoidance: 3DAdapt and Smart Pathfinder claimed (Dreame); Tom's Guide saw it often bump walls and… on the L10s Ultra Gen 2, 3D structured light only, no camera or object count (Dreame); Vacuum Wars saw it avoid 7… on the L40s Ultra.
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