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Dreame L10s Ultra Gen 2 vs Dreame L40 Ultra

These two robot vacuums are evenly matched with the same overall score.

Dreame L10s Ultra Gen 2 robot vacuum

Dreame L10s Ultra Gen 2

8.4/10$449

The single best value in robot vacuums for 2026 — flagship-grade specs for under $500.

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Dreame 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 Ultra Gen 2Dreame L40 Ultra
Overall
8.4
8.4
Hard Floor
9.0
9.0
Carpet
8.0
8.0
Mopping
8.7
8.5
Navigation
8.5
8.8
Noise
8.0
7.5
Smart Features
8.0
8.5
Maintenance
8.5
8.8

Specifications

Dreame L10s Ultra Gen 2SpecDreame L40 Ultra
$449Price$599
10000Suction (Pa)11000
5200Battery (mAh)5200
60.0Noise (dB)65.0
Dustbin (ml)
Water Tank (ml)
Mop Lift (mm)10.5
Height (mm)
Weight (kg)
Smart Pathfinder LiDAR + 3DAdaptNavigationLiDAR + 3D Structured Light
Self-Empty
Self-Wash Mop
Self-Dry Mop
AI Obstacle

Pros & Cons

Dreame L10s Ultra Gen 2

Pros
  • + 10,000Pa Vormax suction (2x Gen 1)
  • + MopExtend RoboSwing reaches 4cm into corners
  • + 75-day auto-empty dock
  • + Hot water mop washing
  • + Up to 240-minute runtime in Quiet Mode
Cons
  • Mop lift only 10.5mm — not safe for thick carpet
  • Cat hair pickup is average vs flagships
  • No real-time carpet detection boost
  • Mid-tier obstacle avoidance vs flagships

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

Both vacuums scored equally. Your choice depends on your specific needs and budget.

Dreame L10s Ultra Gen 2 vs Dreame L40 Ultra: Which Robot Vacuum is Better? | Best Robot Vacuums