Our Verdict
DREAME L40 Ultra Gen 2 Wins

This model boasts a superior 25,000Pa suction power, nearly double the L40s Ultra CE's 13,000Pa, ensuring a deeper clean across all surfaces. It also offers a significantly longer 231-minute battery life, ideal for larger homes. The L40s Ultra CE is the better pick for budget-conscious buyers seeking robust pet hair management with its TriCut Brush and advanced self-cleaning base features like hot air drying, at a $100 lower price point of $469.99.
Bottom Line: DREAME L40 Ultra Gen 2 is the better choice. This model boasts a superior 25,000Pa suction power, nearly double the L40s Ultra CE's 13,000Pa, ensuring a deeper clean across all surfaces.
In-Depth Analysis
How they compare in practice
When comparing the DREAME L40 Ultra Gen 2 and the DREAME L40s Ultra CE, the most significant difference lies in their raw cleaning power. The L40 Ultra Gen 2 takes a commanding lead with an impressive 25,000Pa suction, nearly doubling the L40s Ultra CE's robust 13,000Pa. In real-world use, this translates to a noticeably more profound clean, especially on carpets where embedded dirt and debris are more stubborn. Homes with high-traffic areas or thicker rugs will find the L40 Ultra Gen 2 more effective at extracting grime in fewer passes, offering a superior deep-cleaning experience.
Beyond suction, both units feature LiDAR navigation and self-emptying bases, providing intelligent mapping and hands-free dust disposal. However, their mopping systems offer distinct advantages. The L40 Ultra Gen 2 introduces an extendable side brush and mop, a crucial innovation for meticulous edge and corner cleaning, ensuring that neglected areas along walls and furniture legs are thoroughly addressed. In contrast, the L40s Ultra CE focuses on enhanced hygiene and maintenance with its base that not only washes the mops but also hot-air dries the pads, preventing mildew and odors—a significant practical benefit. It also boasts a TriCut Brush, specifically engineered to cut pet hair and prevent tangles, making it a compelling choice for pet owners.
Battery life also differentiates the two, with the L40 Ultra Gen 2 offering a generous 231 minutes of runtime compared to the L40s Ultra CE's 160 minutes. This extended endurance makes the L40 Ultra Gen 2 more suitable for larger homes or those requiring longer cleaning sessions without interruption. The L40s Ultra CE, while $100 cheaper at $469.99, still provides excellent value with its specialized pet features and advanced base. The trade-off is higher suction power and longer battery life for the L40 Ultra Gen 2 versus specialized pet hair management and superior mop hygiene for the L40s Ultra CE, both offering premium features for their respective price points.
Key Differences
The most significant spec differences at a glance
Suction Power
92% moreBattery Life
44% moreAdvantages
Where each product wins
DREAME
- Suction Power: 92% higher (25000 vs 13000.0)
- Battery Life: 44% higher (231 vs 160.0)
Which to Pick for Your Situation
Concrete scenarios with a clear recommendation
For large homes with extensive carpeting
DREAMEThe DREAME L40 Ultra Gen 2's 25,000Pa suction power and 231-minute battery life are ideal for deep cleaning large areas and embedded dirt on carpets.
For households with multiple shedding pets
DREAMEThe DREAME L40s Ultra CE's TriCut Brush is specifically designed to cut hair and prevent tangles, offering superior management of pet hair.
Prioritizing meticulous edge and corner cleaning
DREAMEThe DREAME L40 Ultra Gen 2 features an extendable side brush and mop, ensuring comprehensive cleaning right up to walls and into corners.
For budget-conscious buyers seeking advanced features
DREAMEAt $469.99, the DREAME L40s Ultra CE offers robust 13,000Pa suction and advanced self-cleaning features like hot air drying for $100 less than Product A.
Who Should Buy Which?
Find the right product for your needs
Buy DREAME if...
DREAME L40 Ultra Gen
The DREAME L40 Ultra Gen 2 is the ideal choice for homeowners living in larger spaces, potentially with extensive carpeting or high-traffic areas that demand a truly deep clean. This buyer prioritizes unparalleled suction power and comprehensive coverage, valuing the robot's impressive 25,000Pa suction for its ability to extract deeply embedded dirt and handle significant debris on all floor types. They will appreciate the extended 231-minute battery life, which allows the robot to clean substantial areas without interruption, minimizing mid-cycle recharges. The meticulous nature of this user will also find the extendable side brush and mop highly appealing, ensuring that every corner and edge is thoroughly cleaned, leaving no dust untouched. While willing to invest $569.99 for this premium performance, they are less concerned with specialized pet hair cutting features or advanced mop drying, instead seeking a robust cleaning workhorse that delivers maximum power and reach for a consistently spotless home.
Buy DREAME if...
DREAME L40s Ultra CE
The DREAME L40s Ultra CE is perfectly suited for pet owners and value-conscious buyers who seek a highly effective, hygienic, and largely hands-off cleaning solution without the highest price tag. This user likely deals with frequent pet hair and will greatly benefit from the innovative TriCut Brush, specifically engineered to cut hair and prevent frustrating tangles around the main roller. While its 13,000Pa suction is lower than its counterpart, it is still more than adequate for excellent daily cleaning of both hard floors and carpets. A key draw for this buyer is the advanced self-cleaning dock, which not only washes but also hot-air dries the mop pads, eliminating mildew and unpleasant odors, ensuring a fresh-smelling home. The base's ability to hold up to 100 days of dust also means less frequent manual emptying. At $469.99, this buyer gets a comprehensive package focused on pet-friendly features and superior dock hygiene, making it an outstanding choice for managing pet messes efficiently and hygienically.
Spec Comparison
10 specs compared
| Specification | ![]() | ![]() |
|---|---|---|
| Price | $570 | $470 |
| Rating | 4.3(497) | 4.3(613) |
| Suction Power Pa | 25000 | 13000 |
| Navigation Type | LiDAR | LiDAR |
| Self Emptying Base | Yes | Yes |
| App Control | Yes | Yes |
| Model Number | RLL53SE | — |
| Carpet Detection | Yes | Yes |
| Mopping Function | Yes | Yes |
| Battery Life Mins | 231 | 160 |
| Obstacle Avoidance | Yes | Yes |
| Weight | — | 17 lbs |
Swipe horizontally to see all columns
Pros & Cons
Quick overview of strengths and weaknesses
DREAME L40 Ultra
- 25,000Pa suction power for thorough cleaning.
- Extendable brush and mop cleans corners and edges.
- Self-cleaning dock minimizes manual maintenance.
- Mop lifts 0.41in to avoid wetting carpets.
- Auto cleaning solution fill requires separate module.
- 2.4GHz Wi-Fi only; no 5GHz support.
DREAME L40s Ultra
- 13,000Pa suction removes deep dirt from hard floors and carp
- Base refills water, washes mops, hot air dries pads.
- TriCut Brush cuts hair, prevents brush tangles.
- Mop lifts 10.5mm on carpet, prevents wetting rugs.
- Auto-filling cleaning solution requires separate module.
- Requires 2.4GHz Wi-Fi network, no 5GHz support.
Frequently Asked Questions
Common questions about this comparison
What is the main difference in cleaning power?
The DREAME L40 Ultra Gen 2 (Product A) provides 25,000Pa suction, nearly double the DREAME L40s Ultra CE's (Product B) 13,000Pa. This offers superior deep cleaning, especially for carpets and heavy debris.
Which robot is better for homes with pets?
The DREAME L40s Ultra CE (Product B) is ideal for pet owners. It features a TriCut Brush specifically designed to cut and prevent pet hair tangles, reducing maintenance and improving cleaning effectiveness.
How do the battery lives compare between the two models?
Product A, the DREAME L40 Ultra Gen 2, offers a longer 231-minute battery life. Product B, the DREAME L40s Ultra CE, provides 160 minutes. Product A is better for larger homes.
Do either of these robots support 5GHz Wi-Fi?
No, both the DREAME L40 Ultra Gen 2 and the DREAME L40s Ultra CE only support 2.4GHz Wi-Fi networks. This is a common specification for many smart home and robot vacuum devices.
Does either robot offer an auto-filling cleaning solution?
Both the DREAME L40 Ultra Gen 2 and the DREAME L40s Ultra CE require a separate module for auto cleaning solution fill, meaning this feature is not built-in to either standard dock.
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