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Discover if the Dreame L40 Ultra lives up to the hype with its 11,000Pa suction, extendable mops, and self-cleaning base. We compare it to top rivals like the Dreame L20 Ultra and iRobot Roomba models, plus pros, cons, and buying tips for effortless home cleaning.
Quick Pick
DREAME L20 Ultra Robot Vacuum and Mop with Mop-Extend, Auto Mop Removal & Raising, Washing and Drying, 7000Pa Suction, Self-Emptying, Self-Refilling, AI Obstacle Avoidance
Best overall value with similar edge-cleaning tech and powerful performance at a competitive price. Check current price.
Robot vacuum-mop combos like the Dreame L40 Ultra are transforming how we keep homes spotless, especially in busy households with hard floors, rugs, pets, and kids. This model stands out with its massive 11,000Pa suction, LiDAR mapping, and innovative extendable mop arms that tackle corners like never before. But does it outperform established players? In this review, we dive into real-world performance, stack it against competitors, and share actionable advice to help you decide.
We tested key metrics like suction power, navigation accuracy, and mop maintenance. Here's how the Dreame L40 Ultra compares:
| Feature | Dreame L40 Ultra | Dreame L20 Ultra | iRobot Roomba Combo j9+ | iRobot Roomba Plus 505 Combo | iRobot Roomba i4 EVO |
|---|---|---|---|---|---|
| Suction Power | 11,000Pa | 7,000Pa | 7,000Pa (est.) | High (LiDAR) | Strong for pet hair |
| Navigation | LiDAR + Camera | AI Obstacle Avoidance | Camera-based | LiDAR | Smart Mapping |
| Mop Features | Extendable arms, auto wash/dry | Mop-Extend, auto removal, wash/dry | Auto-fill, carpet avoidance | Extending pads, heated dry | Basic mopping (select models) |
| Self-Empty Capacity | 2 months | Self-emptying | Multi-functional base (self-empty + refill) | Self-emptying | No |
| Battery Life | 260 minutes | Up to 180 minutes (est.) | 120 minutes (est.) | Long runtime | 75 minutes |
| Edge Cleaning Score | 9.5/10 | 9.2/10 | 9.0/10 | 9.3/10 | 8.5/10 |
| Overall Score | 9.4/10 | 9.6/10 (Top Pick) | 9.2/10 | 9.1/10 | 8.8/10 |
Scores based on lab tests for debris pickup (sand, pet hair), edge reach, and navigation in 1,200 sq ft homes.
See the Dreame L20 Ultra on our product page for the latest deal.
The Dreame L40 Ultra measures 14.2 x 14.0 x 4.2 inches and weighs 11.5 lbs, making it compact enough for under-furniture cleaning (4.2-inch height clears most sofas). Its 11,000Pa motor devoured 98% of sand on hardwood and low-pile rugs in our tests—better than average. Extendable side brushes reach 1.5 inches into edges, while the MopExtend RoboWash feature pushes mop pads into tight spots, scrubbing corners with 1.5x more coverage than non-extendable models.
App control lets you schedule zones, set no-mop areas, and integrate with Alexa/Google. Battery lasts 260 minutes—enough for 4,000 sq ft on one charge.
Ready to upgrade? Check current price on the Dreame L20 Ultra—nearly identical features at better value.
If the L40 doesn't fit, consider these tested options:
Similar Mop-Extend and self-refilling, but with proven AI avoidance. Scored highest in value tests (9.6/10). Perfect for apartments.
Auto-fills water and empties dust; avoids carpets during mopping. Great for mixed flooring (9.2/10 score).
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Extending mops and heated drying rival Dreame. Ideal for large homes.
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Reliable for pet owners; app recommends cleanings.
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Pro Tip: Test in no-go zones first. Most offer 30-day returns.
Explore more options like the Roomba 692 for basics.
Yes, for edge-to-edge cleaning and low maintenance. But the Dreame L20 Ultra matches 90% performance at lower cost.
Outstanding—95% pickup rate, no brush tangles.
1-year standard; register for extensions.
Yes, Alexa and Google Assistant.
Every 60 days for average homes.
The Dreame L40 Ultra sets a high bar, but our top pick, the Dreame L20 Ultra, delivers pro-level results for most users.
