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Dreame L40 Ultra vs Shark PowerDetect UV Reveal (RV3020XE)
These two robot vacuums are evenly matched with the same overall score.
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
Shark PowerDetect UV Reveal (RV3020XE)
8.4/10$1299
Shark's most advanced robot vacuum and mop, with UV stain detection and ThermaCharged hot-water mop wash — but extremely high water usage means long drying times.
Score Comparison
Dreame L40 UltraShark PowerDetect UV Reveal (RV3020XE)
Overall
8.48.4
Hard Floor
9.08.6
Carpet
8.08.8
Mopping
8.57.5
Navigation
8.89.2
Noise
7.57.8
Smart Features
8.58.0
Maintenance
8.88.2
Specifications
| Dreame L40 Ultra | Spec | Shark PowerDetect UV Reveal (RV3020XE) |
|---|---|---|
| $599 | Price | $1299 |
| 11000 | Suction (Pa) | 7000 |
| 5200 | Battery (mAh) | 5200 |
| 65.0 | Noise (dB) | 68.0 |
| — | Dustbin (ml) | — |
| — | Water Tank (ml) | — |
| 10.5 | Mop Lift (mm) | — |
| — | Height (mm) | — |
| — | Weight (kg) | — |
| LiDAR + 3D Structured Light | Navigation | LiDAR + 3D Light + NeuroNav AI |
| ✅ | 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
Shark PowerDetect UV Reveal (RV3020XE)
Pros
- + Best obstacle avoidance ever on a Shark (20 of 24 objects avoided)
- + 91.5% pet hair pickup
- + ThermaCharged 185°F hot-water mop wash
- + 180-minute battery — covers ~2,930 sq ft per charge
- + UV stain detection finds invisible spills
Cons
- − Very high water usage — floors can take 30+ minutes to dry
- − Bulky 4.1" tall — won't fit under low furniture
- − App is buggy and slow
- − $1,299 puts it in flagship territory
The Verdict
Both vacuums scored equally. Your choice depends on your specific needs and budget.