Our Verdict
DREAME L40s Ultra CE Wins

It boasts superior cleaning power with 13,000Pa suction compared to the L10s Ultra Gen 2's 10,000Pa, and utilizes more advanced LiDAR navigation for precise mapping and obstacle avoidance, justifying its slightly higher $469.99 price point. The DREAME L10s Ultra Gen 2 is the better pick for those prioritizing a lower entry price of $399.99, extended battery life of 240 minutes, and dedicated edge-to-edge mopping with its MopExtend technology, making it excellent for hard floors.
Bottom Line: DREAME L40s Ultra CE is the better choice. It boasts superior cleaning power with 13,000Pa suction compared to the L10s Ultra Gen 2's 10,000Pa, and utilizes more advanced LiDAR navigation for precise mapping and obstacle avoidance, justifying its slightly higher $469.
In-Depth Analysis
How they compare in practice
The DREAME L10s Ultra Gen 2 and L40s Ultra CE both offer premium robot vacuuming and mopping, but target slightly different user priorities, reflected in their core specifications and price points. The L40s Ultra CE distinguishes itself with a robust 13,000Pa suction power, a noticeable upgrade from the L10s Ultra Gen 2's 10,000Pa. This extra power translates into more effective deep cleaning, particularly for embedded dirt in carpets or stubborn debris on hard floors, making it ideal for pet owners or homes with high traffic. Coupled with its LiDAR navigation, the L40s Ultra CE offers more accurate and reliable mapping, allowing for faster cleaning routes and better performance in low-light conditions compared to the L10s Ultra Gen 2's camera-based navigation. Additionally, the L40s Ultra CE's base offers a longer 100-day dust storage versus 75 days for the L10s Ultra Gen 2.
However, the L10s Ultra Gen 2 isn't without its own significant advantages. Its MopExtend technology, which allows one mop pad to extend for edge cleaning, provides a superior mopping experience for reaching baseboards and corners that fixed dual rotary mops might miss. The L10s Ultra Gen 2 also boasts a considerably longer battery life of 240 minutes versus the L40s Ultra CE's 160 minutes, making it better suited for larger homes or multi-story cleaning without needing to recharge mid-cycle. While both feature self-emptying bases, the L40s Ultra CE offers a longer 100-day dust storage capacity compared to the L10s Ultra Gen 2's 75 days, requiring less frequent manual intervention.
In terms of value, the L10s Ultra Gen 2, at $399.99, offers an excellent balance of features for its price, particularly for users prioritizing advanced mopping capabilities and extended runtime. The L40s Ultra CE, at $469.99, justifies its higher cost with superior suction, LiDAR navigation, and specialized features like the TriCut Brush for pet hair, making it a stronger contender for demanding cleaning tasks. The trade-off lies between raw power and navigation precision (L40s Ultra CE) versus specialized mopping, battery life, and a more accessible price point (L10s Ultra Gen 2).
Key Differences
The most significant spec differences at a glance
Suction Power
23% lessBattery Life
50% moreAdvantages
Where each product wins
DREAME
- Battery Life: 50% higher (240 vs 160.0)
DREAME
- Suction Power: 23% higher (10000 vs 13000.0)
Which to Pick for Your Situation
Concrete scenarios with a clear recommendation
For a home with heavy pet shedding and multiple carpets
DREAMEThe DREAME L40s Ultra CE offers 13,000Pa suction and a TriCut Brush, specifically designed to handle pet hair and deep-clean carpets effectively, complemented by its 10.5mm mop lift.
For large multi-level homes requiring extensive coverage
DREAMEThe DREAME L10s Ultra Gen 2 provides an impressive 240 minutes of battery life, allowing it to cover larger areas on a single charge compared to the L40s Ultra CE's 160 minutes.
For homes prioritizing thorough edge-to-edge mopping
DREAMEThe DREAME L10s Ultra Gen 2 features MopExtend technology, which ensures one mop pad reaches right up to wall edges and corners for comprehensive hard floor cleaning.
For users on a tighter budget who still want premium features
DREAMEAt $399.99, the DREAME L10s Ultra Gen 2 offers strong suction, advanced mopping, and self-emptying at a more accessible price point than the L40s Ultra CE.
Who Should Buy Which?
Find the right product for your needs
Buy DREAME if...
DREAME L10s Ultra Gen
The DREAME L10s Ultra Gen 2 is ideal for homeowners who prioritize exceptional hard floor mopping and extended cleaning sessions without frequent recharging, all while keeping a sensible budget. This buyer might live in a medium to large home with a significant amount of hard flooring and perhaps a few rugs, rather than wall-to-wall carpeting. They value the innovative MopExtend technology which ensures that baseboards and corners are thoroughly cleaned, a feature often overlooked by standard robot mops. The generous 240-minute battery life is crucial for covering extensive floor plans or multiple levels, allowing the robot to complete its tasks efficiently. While it offers a strong 10,000Pa suction, they might not have extreme pet hair challenges or ultra-thick carpets that demand the absolute highest power. At $399.99, it presents a compelling package for those seeking premium auto-cleaning and advanced mopping capabilities without the top-tier price tag of its LiDAR-equipped counterpart. They are comfortable with camera-based navigation, understanding its capabilities for general home layouts.
Buy DREAME if...
DREAME L40s Ultra CE
The DREAME L40s Ultra CE is perfect for households demanding the utmost in raw cleaning power and sophisticated navigation, especially those with pets, deep-pile carpets, or complex floor plans. This buyer is willing to invest a bit more ($469.99) for superior performance. Their home likely features a significant mix of hard floors and various types of carpeting, where the 13,000Pa suction power is essential for extracting deeply embedded dirt and pet dander. The inclusion of the TriCut Brush system specifically addresses pet hair tangling concerns, a major pain point for many pet owners. Furthermore, the L40s Ultra CE's LiDAR navigation offers unmatched precision in mapping and obstacle avoidance, ensuring efficient, consistent cleaning even in dynamically changing environments or low light. The 10.5mm mop-lifting capability is a critical feature, guaranteeing that carpets remain dry during mopping cycles. This buyer prioritizes cutting-edge technology and maximum cleaning efficacy, even if it means a slightly shorter battery life compared to its sibling.
Spec Comparison
12 specs compared
| Specification | ![]() | ![]() |
|---|---|---|
| Price | $400 | $470 |
| Rating | 4.2(892) | 4.3(613) |
| Suction Power Pa | 10000 | 13000 |
| Navigation Type | camera | LiDAR |
| Self Emptying Base | Yes | Yes |
| App Control | Yes | Yes |
| Model Number | RLL32SE | — |
| Height Inches | 1.58" | — |
| Carpet Detection | Yes | Yes |
| Mopping Function | Yes | Yes |
| Battery Life Mins | 240 | 160 |
| Obstacle Avoidance | Yes | Yes |
| Dustbin Capacity ml | 300 | — |
| Weight | — | 17 lbs |
Swipe horizontally to see all columns
Pros & Cons
Quick overview of strengths and weaknesses
DREAME L10s Ultra
- 10,000Pa suction cleans deeply into carpets and floors.
- Auto-empty base station holds debris for up to 75 days.
- Mops self-wash and dry with warm air in base station.
- Dual rotary mops scrub stubborn dirt under pressure.
- Requires a 2.4GHz network connection for operation.
- Small 300ml robot dustbin needs frequent base use.
- Large base station requires significant floor space.
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
Which robot vacuum has stronger suction power?
The DREAME L40s Ultra CE has stronger suction at 13,000Pa, compared to the DREAME L10s Ultra Gen 2's 10,000Pa. This provides more effective deep cleaning.
How long can each robot operate on a single charge?
The DREAME L10s Ultra Gen 2 offers up to 240 minutes of battery life, while the DREAME L40s Ultra CE provides 160 minutes.
Do these robots automatically empty their dustbins?
Yes, both models come with self-emptying base stations. The L40s Ultra CE's base holds dust for up to 100 days, while the L10s Ultra Gen 2's holds for 75 days.
Which model is better for homes with a mix of carpets and hard floors?
The DREAME L40s Ultra CE is generally better as its mops lift 10.5mm on carpet, preventing wetting, and its 13,000Pa suction is excellent for deep carpet cleaning.
How do their navigation systems compare?
The DREAME L40s Ultra CE uses more precise LiDAR navigation, while the DREAME L10s Ultra Gen 2 uses camera-based navigation for mapping and obstacle avoidance.
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