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Dreame L10s Ultra vs Dreame L40 Ultra

The Dreame L40 Ultra wins with a score of 8.4/10. Best for: Pet households with mostly hard floors and large open spaces.

Dreame L10s Ultra robot vacuum

Dreame L10s Ultra

7.6/10$299

The cheapest full-feature self-empty dock on the market in 2026 — but only if you can live with aging suction and reliability question marks.

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WinnerDreame L40 Ultra robot vacuum

Dreame L40 Ultra

8.4/10$599

The Dreame L40 Ultra delivers near-flagship cleaning performance and the longest battery efficiency we've measured at a mid-range price.

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Score Comparison

Dreame L10s UltraDreame L40 Ultra
Overall
7.6
8.4
Hard Floor
8.5
9.0
Carpet
7.5
8.0
Mopping
8.0
8.5
Navigation
8.0
8.8
Noise
7.5
7.5
Smart Features
7.5
8.5
Maintenance
7.5
8.8

Specifications

Dreame L10s UltraSpecDreame L40 Ultra
$299Price$599
5300Suction (Pa)11000
5200Battery (mAh)5200
59.0Noise (dB)65.0
Dustbin (ml)
Water Tank (ml)
Mop Lift (mm)10.5
Height (mm)
Weight (kg)
LiDAR + RGB Camera + 3D Structured LightNavigationLiDAR + 3D Structured Light
Self-Empty
Self-Wash Mop
Self-Dry Mop
AI Obstacle

Pros & Cons

Dreame L10s Ultra

Dreame L40 Ultra

Pros
  • + 11,000Pa suction handles hard floors with ease
  • + Class-leading battery efficiency (194 min runtime)
  • + TriCut anti-tangle brush handles long hair well
  • + 60°C hot water mop wash and auto-dry
  • + Built-in voice control + Matter, Alexa, Google, HomeKit
Cons
  • Lower carpet performance vs flagship X40
  • Mop pad retention occasionally drops a pad
  • Louder than premium competitors at full power
  • Mopping won't replace deep manual cleaning on heavy stains

The Verdict

The Dreame L40 Ultra is the better choice with an overall score of 8.4/10 — best for pet households with mostly hard floors and large open spaces. The Dreame L10s Ultra is more affordable at $299 vs $599.

Dreame L10s Ultra vs Dreame L40 Ultra: Which Robot Vacuum is Better? | Best Robot Vacuums