Introduction
Dreame has launched two interesting proposals in 2024 within its catalogue of robots with multifunction base. The Dreame L10s Ultra Gen 2 and the Dreame X40 Ultra share design philosophy and launch year, but hide important technical differences worth analysing before making a decision.
We're talking about two units with complete multifunction base: auto-emptying, mop washing and drying. Both are designed for users seeking to maximise home cleaning automation, although the X40 Ultra incorporates advanced functions that place it a step above in performance. The choice between one or the other will depend on the type of home, cleaning requirements and available budget.
Power and Suction
Suction power marks a first relevant difference. The Dreame L10s Ultra Gen 2 reaches 10000 Pa in Turbo mode, whilst the X40 Ultra rises to 12000 Pa. In practice, those additional 2000 Pa can be particularly noticeable on medium or long pile carpets, where the capacity to extract embedded dirt improves appreciably.
The main brush is of simple type on both models, but with an important difference: the X40 Ultra can lift it during mopping. This prevents the brush from getting wet and allows more efficient mopping without dragging damp dust residue. The L10s Ultra Gen 2 doesn't have this function.
Where the X40 Ultra pulls ahead is in the side brush. It includes an extendable system to better reach corners, lifting during mopping and anti-tangle technology. The L10s Ultra Gen 2 doesn't have any of these features on its side brush, which limits its effectiveness on edges and corners, especially in homes with long-haired pets.
Mopping
Both feature two rotating mops with 10.5 mm lifting and 3.0 mm extension with Roboswing system, which allows the robot to make a swinging movement to get the mops under overhangs and low furniture. Up to here, technical equality.
The difference appears in mop washing. The Dreame L10s Ultra Gen 2 washes with cold water, whilst the X40 Ultra uses hot water at 70°C. This improves the removal of grease and adhered stains during mop washing at the base. Drying, on the other hand, is identical: hot air at 45°C in both cases.
The X40 Ultra adds a practical function: it can automatically remove the mops at the base when you only want to vacuum. This avoids having to remove them manually. Additionally, it incorporates dirt detection both on the mops and on the floor, which allows it to adjust mopping intensity and decide when rewashing is necessary. The L10s Ultra Gen 2 doesn't have any of these intelligent mopping functions.
Navigation System
Both models mount third-generation LIDAR turret and front 3D laser sensor to avoid obstacles. They also share pet recognition through CleanGenius artificial intelligence.
However, the Dreame X40 Ultra incorporates dual AI camera capable of recognising up to 120 different types of obstacles, compared to an unspecified number on the L10s Ultra Gen 2. This dual camera enables advanced functions such as curtain detection, remote camera access from the app and night vision LED. The L10s Ultra Gen 2 doesn't include any of these visual features.
The X40 Ultra also features AI stain recognition and AI Sage 11.0 Qualcomm processor, information not detailed on the L10s Ultra Gen 2. This translates into more precise navigation and more intelligent cleaning decisions.
Autonomy and Battery
Here we find a curious fact. The Dreame L10s Ultra Gen 2 mounts a 5200 mAh battery that offers 240 minutes of autonomy. The X40 Ultra, with a superior 6400 mAh battery, declares 194 minutes of continuous use.
This apparent contradiction is explained by the greater suction power and additional hardware of the X40 Ultra, which consumes more energy. In large homes, the L10s Ultra Gen 2 can complete cleaning without intermediate recharges more easily, although the X40 Ultra compensates with its greater cleaning efficiency per pass.
Intelligent Functions
The Dreame L10s Ultra Gen 2 can overcome obstacles up to 20 mm in height, whilst the X40 Ultra reaches 22 mm. These are minimal differences, but can make the difference on door thresholds or transitions between floors.
Neither model incorporates robotic arm nor own voice assistant, features that remain reserved for other market segments.
Multifunction Cleaning Base
Both bases share identical capacities in terms of tanks: 3.2-litre dust bag, 4.5 litres of clean water and 4 litres of dirty water. They also include detergent tank and optional plumbing connection kit, which must be purchased separately.
The main difference lies in the washing tray self-cleaning. The X40 Ultra comes with the second-generation system factory-installed, whilst on the L10s Ultra Gen 2 it's second generation but requires installation. Additionally, the X40 Ultra incorporates integrated water plumbing connection, which allows you to forget about manually refilling and emptying tanks if you decide to install it.
Dimensions
There are no differences. Both robots measure 350 mm in diameter and 97 mm in height, which allows them to slip under most standard furniture. The bases are also identical: 340 mm wide, 590.5 mm high and 456.7 mm deep. It's advisable to measure the available space before installing either of the two.
Real-World Experience
For medium-sized homes without major demands, the Dreame L10s Ultra Gen 2 offers complete and automated cleaning. Its greater autonomy makes it ideal for large flats requiring a single pass without interruptions. Cold water mopping is sufficient for daily maintenance in homes without pets or young children.
The Dreame X40 Ultra is designed for more demanding users. Mop washing at 70°C notably improves mopping hygiene. Dirt detection and automatic remopping are useful in kitchens and high-traffic areas. The extendable and anti-tangle side brush makes the difference in homes with pets, whilst the camera with remote access provides peace of mind when you're not at home.
The ability to lift the main brush during mopping and automatically remove the mops simplifies maintenance and improves results on mixed floors. For large homes with carpets, parquet and intensive mopping areas, the X40 Ultra offers superior performance that justifies its positioning.
Conclusion: Which to Choose?
Choose the Dreame L10s Ultra Gen 2 if you're looking for a complete Dreame robot vacuum with multifunction base at a more competitive price. It's ideal for medium or large-sized homes where autonomy is important and mopping requirements aren't extreme. Perfect if you don't have long-haired pets and value quality-price ratio in this robot vacuum comparison.
Choose the Dreame X40 Ultra if you want the best 2025 Dreame robot vacuum with all advanced functions. Recommended for homes with pets, young children or areas requiring intensive mopping. The dual AI camera, 70°C washing, dirt detection and extendable side brush make it a superior option for demanding users seeking total automation and professional results. It's also the best option if you value integrated plumbing connection and remote camera access from anywhere.
