Introduction
The Dreame L50s Pro Ultra, the Roborock Qrevo Edge S5A and the Roborock QV 35A represent three generations and distinct approaches within the robot vacuum market with multifunction base. The Dreame model arrives in 2026 with very advanced technical specifications, whilst the Qrevo Edge S5A was launched in 2024 as a mid-to-high-range solution from Roborock. The QV 35A, introduced in 2025, is positioned as a more accessible alternative within the Roborock family.
This robot vacuum comparison is especially useful for those looking to understand what justifies the performance differences between models from different generations. The Dreame robot vacuum stands out for integrating cutting-edge technology, whilst the Roborock options offer established solutions with different levels of equipment.
Power and Suction
The most evident difference between these three models lies in suction power. The Dreame L50s Pro Ultra reaches 30,000 Pa, a figure that far exceeds the 18,500 Pa of the Roborock Qrevo Edge S5A. The Roborock QV 35A remains at 8,000 Pa, sufficient power for daily maintenance but clearly inferior when dealing with thick carpets or ingrained dirt.
Regarding the brushing system, the Dreame integrates a dual HyperStream brush, specifically designed to reduce hair tangles. The Qrevo Edge S5A uses Roborock's DuoDivide anti-tangle system, which pushes hairs towards the central gap to facilitate suction. The QV 35A mounts a simple brush, which may mean greater maintenance in homes with pets.
An exclusive feature of the Dreame L50s Pro Ultra is the ability to lift both the main and side brush during mopping. This prevents the brushes from getting unnecessarily wet and allows more efficient mopping without dragging dry dirt. Both Roborock models lack this function.
The extendable side brush is present on the Dreame and on the Qrevo Edge S5A, improving corner cleaning. The QV 35A does not incorporate this extension, which may be particularly noticeable in rooms with many corners.
Mopping
All three units use a two rotating mop system, but the differences in advanced functionalities are notable. The Dreame L50s Pro Ultra includes mop extension with Roboswing movement, allowing the robot to perform a specific movement to introduce the mop under furniture and overhangs. The Qrevo Edge S5A also features mop extension, although without the Roboswing system. The QV 35A has no extension whatsoever.
Mop lift reaches 10.5 mm on the Dreame, whilst both Roborock models remain at 10 mm. Although the difference is minimal, it can make a difference on short-pile carpets.
Mop washing is carried out with hot water on the Dreame L50s Pro Ultra and on the Roborock Qrevo Edge S5A, whilst the QV 35A also washes with hot water. Hot air drying is present on all three models, ensuring that the mops are completely dry after cleaning.
An exclusive function of the Dreame robot vacuum is the automatic removal of the mops at the base when only vacuuming is desired. This eliminates the need for manual intervention to switch between cleaning modes. Neither of the Roborock models offers this convenience.
Dirt detection on mops and on the floor is present on the Dreame L50s Pro Ultra and on the Qrevo Edge S5A, allowing the robot to intensify cleaning in areas that require it. The QV 35A lacks this capability, performing uniform mopping without intelligent adaptation.
Navigation System
The Dreame L50s Pro Ultra incorporates a significantly more advanced navigation system than its competitors. In addition to the standard LiDAR turret, it integrates dual AI camera, front 3D laser sensor and night vision LED. This combination allows recognition of up to 220 different obstacles, including pets and curtains, something that neither of the Roborock models can do.
Remote camera access is another exclusive function of the Dreame, allowing visualisation of the home from the mobile application. The Roborock models are limited to LiDAR navigation and basic obstacle avoidance, without integrated camera.
In terms of cleaning algorithms, the Qrevo Edge S5A uses Roborock's RR Mason 11.0 system, an established and efficient platform. The Dreame incorporates CleanGenius and AI stain recognition, adapting the cleaning strategy according to the type of dirt detected. The QV 35A features SmartPlan, sufficient for basic mapping and planning.
Autonomy and Battery
All three robots mount 5,200 mAh batteries, a generous capacity that guarantees sufficient autonomy for large homes. The Roborock Qrevo Edge S5A and the QV 35A declare 180 minutes of autonomy, although this data is not available for the Dreame L50s Pro Ultra in the technical information provided.
In practice, this battery capacity allows coverage of extensive surfaces without the need for intermediate recharges, especially important in homes of more than 150 square metres.
Smart Functions
The Dreame L50s Pro Ultra can overcome simple steps, a capability that improves mobility between rooms with small level changes. Both Roborock models overcome obstacles up to 20 mm in height, sufficient for most transitions between floors and carpets.
The Dreame's built-in voice assistant allows direct interaction with the robot without the need to use a mobile or external assistants. All three models are compatible with Alexa and Google Home, but only the Dreame offers voice control integrated into the device itself.
Multifunction Cleaning Base
All three bases include auto-emptying of the dust container, washing and drying of mops with hot water and air. However, the differences in maintenance and capacity are relevant.
The Dreame L50s Pro Ultra incorporates third-generation tray self-cleaning, the most advanced on the market, which significantly reduces manual intervention. The Qrevo Edge S5A uses version 2.0, also effective but less automated. The QV 35A lacks tray self-cleaning, requiring periodic manual cleaning.
The detergent tank is only present on the Dreame robot vacuum, dispensing product during mop washing to improve mopping effectiveness. The Roborock models use only water.
Dust bag capacity reaches 3.2 litres on the Dreame, compared to 2.7 litres on the Roborock models. This translates into less frequent emptying, especially useful in homes with pets or high dust generation.
Clean water tanks also vary: 4.5 litres on the Dreame versus 4 litres on the Roborock models. The dirty water tank is 4 litres on the Dreame and 3.5 litres on the Roborock models. These differences may seem small, but in large homes they mean greater autonomy between refills.
The Dreame L50s Pro Ultra offers an optional plumbing connection kit, which must be purchased separately and allows complete automation of water filling and emptying. Neither of the Roborock models includes this option.
Dimensions
The diameter of all three robots is practically identical: 350 mm on the Dreame, 352 mm on the Qrevo Edge S5A and 353 mm on the QV 35A. The real differences are in height.
The Roborock QV 35A is the lowest at 96.5 mm, followed by the Qrevo Edge S5A at 98 mm. The Dreame L50s Pro Ultra reaches 103.8 mm, the greatest height of the three. This may limit its ability to slide under certain low furniture, although the 7 mm difference compared to the QV 35A is not usually decisive in most homes.
The bases also present differences. The Dreame's measures 590 mm high, 340 mm wide and 457 mm deep. The Roborock bases are lower (521 mm) but deeper (487 mm). This should be considered when planning where to position the base, especially in reduced spaces.
Real-World Usage Experience
The Dreame L50s Pro Ultra is clearly designed for users seeking maximum automation and minimal manual intervention. The combination of third-generation tray self-cleaning, automatic mop removal, detergent tank and greater bag capacity drastically reduces maintenance. The dual AI camera and pet recognition make it an ideal option for homes with animals.
The Roborock Qrevo Edge S5A offers a solid balance between performance and automation. Its power of 18,500 Pa is sufficient for most situations, and the DuoDivide anti-tangle system works well with pet hair. The 2.0 tray self-cleaning requires somewhat more attention than the Dreame, but remains convenient.
The Roborock QV 35A is the most basic option of the three. Its power of 8,000 Pa limits its effectiveness on thick carpets, and the absence of mop extension, dirt detection and tray self-cleaning implies greater manual intervention. It is suitable for small homes with hard floors and few carpets, where regular maintenance is not a problem.
For large homes, the Dreame's larger capacity tanks make a difference, allowing cleaning of extensive surfaces without interruptions to refill water or empty waste. In small flats, any of the three models performs without problems.
Conclusion: Which to Choose?
Choose the Dreame L50s Pro Ultra if you're looking for the best robot vacuum in terms of automation and technology. Its power of 30,000 Pa, dual AI camera, automatic mop removal, detergent tank and third-generation self-cleaning make it the most complete option. Ideal for large homes, homes with pets, users who value minimal manual intervention and those who want remote camera access for additional surveillance.
Choose the Roborock Qrevo Edge S5A if you prefer an established Roborock solution with good performance without reaching the price of the highest range. Its power of 18,500 Pa, DuoDivide anti-tangle brush, mop extension and 2.0 tray self-cleaning offer reliable performance. Suitable for medium and large homes, users who trust Roborock's reliability and those who don't need the Dreame's advanced AI functions.
Choose the Roborock QV 35A if you're looking for a more economical option within the Roborock family and don't mind forgoing advanced functions. With 8,000 Pa of power, without mop extension or intelligent dirt detection, it is appropriate for small flats with hard floors, users without pets or with few carpets, and those who prefer a simple solution that requires somewhat more manual attention but with Roborock's build quality.
