Best Robot Vacuums is reader-supported. When you buy through links on our site, we may earn a commission. Details.

We may earn a commission when you buy through links on this page. Learn more.

Dreame L40 Ultra vs Dyson Spot+Scrub AI

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

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.

Read full review
Dyson Spot+Scrub AI robot vacuum

Dyson Spot+Scrub AI

7.5/10$1600

Dyson's first robot vacuum — strong suction but lacks features competitors offer

Read full review

Score Comparison

Dreame L40 UltraDyson Spot+Scrub AI
Overall
8.4
7.5
Hard Floor
9.0
8.5
Carpet
8.0
8.0
Mopping
8.5
6.5
Navigation
8.8
7.0
Noise
7.5
6.0
Smart Features
8.5
7.5
Maintenance
8.8
7.0

Specifications

Dreame L40 UltraSpecDyson Spot+Scrub AI
$599Price$1600
11000Suction (Pa)18000
5200Battery (mAh)4900
65.0Noise (dB)72.0
Dustbin (ml)300
Water Tank (ml)150
10.5Mop Lift (mm)10.4
Height (mm)99.0
Weight (kg)4.0
LiDAR + 3D Structured LightNavigationVisual SLAM + AI Camera
Self-Empty
Self-Wash Mop
Self-Dry Mop
AI Obstacle

Pros & Cons

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

Dyson Spot+Scrub AI

Pros
  • + Powerful 18,000Pa suction
  • + Dyson brand quality
  • + Stain detection AI
  • + Good hard floor cleaning
Cons
  • No self-empty dock
  • Low mop lift
  • Expensive for what you get
  • App needs improvement

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 L40 Ultra is more affordable at $599 vs $1600.

Dreame L40 Ultra vs Dyson Spot+Scrub AI: Which Robot Vacuum is Better? | Best Robot Vacuums