Introduction
We're looking at three high-end models that represent the most advanced in robot vacuum cleaners with multifunctional bases. The Dreame L40s Pro Ultra arrives in 2025 with very ambitious technical proposals, whilst the Roborock Qrevo Edge S5A appeared in 2024 consolidating the experience of a world-leading brand. The Roborock Qrevo S5V, also from 2025, positions itself as a more accessible alternative within the Qrevo family.
All three units are designed for homes seeking complete automation of floor maintenance, with the ability to vacuum and mop with hardly any manual intervention. The difference lies in the level of technological sophistication and how each one resolves complex situations such as corners, object detection or water management.
Power and Suction
Suction power shows notable differences. The Dreame L40s Pro Ultra leads with 19,000 Pa, followed closely by the Roborock Qrevo Edge S5A with 18,500 Pa. The Qrevo S5V remains at 12,000 Pa, a figure that is still competent but clearly inferior for thick carpets or ingrained dirt.
In the brushing system we find different philosophies. The Dreame opts for a dual HyperStream brush, specifically designed to prevent hair tangles using two brushes anchored at one end. Both Roborock models use the DuoDivide system, which pushes hairs towards the central gap to facilitate direct suction without them wrapping around the bristles.
A clear advantage of the Dreame L40s Pro Ultra: both its main brush and side brush can be raised during mopping. This prevents the brushes from interfering with the mops or dirtying freshly mopped areas. The two Roborock models don't offer this function, although all three include anti-tangle side brushes.
The extendable side brush appears on the Dreame L40s Pro Ultra and the Roborock Qrevo Edge S5A, allowing better reach into corners. The Qrevo S5V does without this feature, which can be particularly noticeable in corners and skirting boards.
Mopping
All three robots use dual rotating mop systems, but the differences in implementation are significant. All can extend the mops to reach edges, although the Dreame L40s Pro Ultra adds the Roboswing system, a swaying movement that introduces the mop under furniture and overhangs more effectively.
Mop lift reaches 10.5 mm on the Dreame, half a millimetre more than the 10 mm of both Roborock models. It may seem little, but on short-pile carpets that difference helps prevent wet mops from touching them.
Mop washing is carried out with hot water on all three units, an important point for eliminating grease and bacteria. Drying also uses hot air in all cases, speeding up the process and preventing bad odours. Here the Dreame L40s Pro Ultra stands out with its third-generation tray self-cleaning system, compared to version 2.0 of the Qrevo Edge S5A. The Qrevo S5V doesn't incorporate tray self-cleaning, which requires more frequent manual maintenance.
Only the Dreame L40s Pro Ultra can automatically remove the mops at the base. This is very practical when you only want to vacuum without mopping, preventing the mops from dragging across the floor unnecessarily.
Dirt detection is present on the Dreame L40s Pro Ultra and the Qrevo Edge S5A, both in the mops and on the floor. When they detect dirtier areas, they automatically go over them again until achieving better results. The Qrevo S5V lacks this function, always performing the same mopping pattern without adapting to actual dirt levels.
Navigation System
Here the Dreame L40s Pro Ultra shows its most differentiating feature. It incorporates dual camera with artificial intelligence, front 3D laser sensor and LED for night vision. This combination allows recognition of up to 180 different types of obstacles, including pets and curtains, something that neither of the Roborock models can do.
The dual camera doesn't just improve detection: it also allows remote access for surveillance from the app, turning the robot into a mobile camera when it's not cleaning. The Roborock models don't offer camera access.
The Roborock Qrevo Edge S5A uses the RR Mason 11.0 algorithm, tested and refined across multiple generations of robots. It offers precise navigation with LIDAR turret and effective obstacle avoidance, although without the level of specific recognition of the Dreame.
The Qrevo S5V maintains LIDAR navigation with obstacle avoidance, but without the advanced AI capabilities of its bigger siblings. For tidy homes it works perfectly, although in environments with many objects on the floor the difference is noticeable.
Battery Life and Battery
All three robots have 5,200 mAh batteries, but performance varies. The Dreame L40s Pro Ultra achieves 220 minutes of battery life, sufficient to cover large homes in a single session. Both Roborock models remain at 180 minutes, a figure that is still generous for most households.
In practice, those extra 40 minutes of the Dreame can make a difference in homes over 150 m² with various floor types and carpets, where the robot needs more time to complete vacuuming and mopping without recharging.
Smart Features
The ability to overcome obstacles shows interesting differences. The Dreame L40s Pro Ultra can navigate simple steps, although the table doesn't specify the exact height. The two Roborock models overcome obstacles up to 20 mm, sufficient for most thresholds and thick carpets.
The Dreame L40s Pro Ultra incorporates its own voice assistant, in addition to compatibility with Alexa and Google Home. The Roborock models work with external assistants but don't have integrated voice of their own. This can be useful for quick queries or commands without needing to open the app or use another device.
Multifunctional Cleaning Base
All three bases perform auto-emptying, hot water washing and hot air drying. The differences are in the details. The Dreame L40s Pro Ultra includes integrated detergent tank, automatically dispensing product during mop washing. Neither of the Roborock models offers this, requiring manual addition of detergent to the clean water tank if you wish to use it.
Storage capacity favours the Dreame: 3.2-litre dust bag compared to 2.7 litres for the Roborock models, 4.5-litre clean water tank compared to 4 litres, and 4-litre dirty water tank compared to 3.5 litres. This translates to fewer emptyings and fillings, especially relevant in large homes or with frequent mopping.
The Dreame offers optional kit for plumbing connection, although it must be purchased separately. Neither of the Roborock models has this option, not even as an accessory. For those seeking total automation without touching tanks, it's worth bearing in mind.
Dimensions
In height, the Dreame L40s Pro Ultra measures 103.8 mm, notably taller than the 98 mm of the Qrevo Edge S5A and the 96.5 mm of the Qrevo S5V. Those centimetres can prevent the Dreame from passing under low furniture where the Roborock models can enter. The diameter is practically identical on all three, around 350 mm.
The bases also differ. The Dreame's reaches 590.5 mm in height compared to the 521 mm of both Roborock models, although it's somewhat less deep: 456.7 mm compared to 487 mm. The width is the same on all three at 340 mm. It's advisable to measure the available space before deciding, especially if you're planning to place the base in a cupboard or under a worktop.
Real-World User Experience
For large homes, the Dreame L40s Pro Ultra offers clear advantages: greater battery life, larger tanks in the base and superior suction power. Advanced obstacle detection with dual camera and 3D sensor is especially useful in homes with young children where the floor is usually full of toys.
If you live with pets, the Dreame specifically recognises animals and adjusts its behaviour, in addition to having brushes designed to prevent hair tangles. The Roborock Qrevo Edge S5A also manages hair well thanks to its DuoDivide system, although without specific pet recognition.
The Roborock Qrevo Edge S5A stands out for its reduced height and the reliability of an established brand. For homes with low furniture, those 5 mm less than the Dreame can be decisive. Roborock's app is a benchmark in the sector, with constant updates and proven stability.
The Roborock Qrevo S5V presents itself as a more economical option within this range, sacrificing advanced functions such as dirt detection or extendable side brush. For small flats without complications it may be sufficient, although the power difference will be noticeable on carpets.
Conclusion: Which One to Choose?
Choose the Dreame L40s Pro Ultra if you're seeking the greatest possible automation and your budget allows it. The combination of dual AI camera, detection of 180 obstacles, automatic mop removal, integrated detergent tank and greater battery life make it the most complete. Ideal for large homes, with pets, young children or many obstacles on the floor. The possibility of plumbing connection via optional kit adds a bonus of future automation. Bear in mind that its greater height may limit access under some furniture.
Choose the Roborock Qrevo Edge S5A if you value the reliability of a world-leading brand and prefer a somewhat more compact robot. Its 98 mm height allows it to slip under more furniture than the Dreame, and the 18,500 Pa power is still excellent. The DuoDivide system manages pet hair very well, and although it lacks the most advanced AI functions, its navigation is precise and effective. Roborock's app is a benchmark in ease of use and stability. A good option for those seeking balance between features and contained dimensions.
Choose the Roborock Qrevo S5V if your priority is entering the Roborock ecosystem with multifunctional base without needing all the advanced functions. With 12,000 Pa of suction it's sufficient for hard floors and thin carpets, and its 96.5 mm height is the lowest of the three. It does without dirt detection, extendable side brush and tray self-cleaning, which requires more manual supervision. Suitable for small or medium-sized flats, without long-haired pets and with a tighter budget.
