Introduction
We're looking at three high-end robot vacuum cleaners that represent the best of Dreame and Roborock. The Dreame L40s Pro Ultra arrived on the market in 2025, whilst the Roborock Qrevo Edge S5A is a 2024 model and the Roborock Qrevo S Pro is scheduled for 2026. All three integrate a complete multifunction base with mop washing and drying, as well as automatic dust bin emptying.
We're talking about devices designed for those seeking total automation in home cleaning. The Dreame model focuses on technological innovation with dual camera and 3D laser sensor, whilst Roborock's offerings concentrate on the reliability and efficiency that characterises this world-leading brand.
Power and Suction
The Dreame L40s Pro Ultra leads in raw power with 19,000 Pa, exceeding the two Roborock models by 500 Pa. This difference can be particularly noticeable on dense carpets or when there's a lot of accumulated dirt.
Where the Dreame really sets itself apart is in the brushing system. It features a dual HyperStream main brush with anti-tangle design, whilst the Qrevo Edge S5A is equipped with Roborock's DuoDivide anti-tangle system and the Qrevo S Pro uses a traditional single brush. The Dreame's dual brush system, anchored at one end, drastically reduces tangles from long hair and pet fur.
All include an anti-tangle side brush, but only the Dreame L40s Pro Ultra can lift both the main and side brush during mopping. This prevents the brushes from getting unnecessarily wet and allows for cleaner mopping without dragging dry dirt. The Dreame and Qrevo Edge S5A feature an extendable side brush to improve corner cleaning, a function not present on the Qrevo S Pro.
Mopping
All three models use a dual rotating mop system, but the differences in functionality are notable. The Dreame L40s Pro Ultra can lift the mops up to 10.5 mm, slightly more than the 10 mm of the Roborock models. More relevant is that the Dreame and Qrevo Edge S5A incorporate mop extension to better reach edges and skirting boards, whilst the Qrevo S Pro lacks this feature.
The Dreame's Roboswing system allows the robot to perform a swinging movement to get the mop under low furniture and overhangs, something neither of the Roborock models can do. This function is practical for cleaning hard-to-reach areas without needing to move furniture.
An exclusive advantage of the Dreame L40s Pro Ultra is the ability to automatically remove the mops at the base when you only want to vacuum. The Roborock models cannot do this automatically. Regarding dirt detection, the Dreame and Qrevo Edge S5A identify dirt both on the mops and on the floor to re-clean dirtier areas, a function absent on the Qrevo S Pro.
Navigation System
Here the Dreame L40s Pro Ultra deploys its most advanced technological arsenal. It integrates a LiDAR turret like all three models, but adds dual AI camera and front 3D laser sensor. It can recognise up to 180 different types of obstacles, includes specific detection of pets and curtains, and offers remote camera access for home monitoring. The night vision LED allows the robot to navigate correctly even in low light.
The Roborock Qrevo Edge S5A and Qrevo S Pro are limited to LiDAR navigation with basic obstacle avoidance, without AI camera or advanced object recognition. The Qrevo Edge S5A uses Roborock's RR Mason 11.0 algorithm with SmartPlan function, whilst the Dreame opts for its CleanGenius system with more developed artificial intelligence.
Battery Life and Battery
All three robots feature a 5,200 mAh battery, but energy management differs. The Dreame L40s Pro Ultra achieves 220 minutes of continuous operation, whilst both Roborock models remain at 180 minutes. This 40-minute difference can be decisive in large homes or when scheduling a complete whole-house clean.
In practice, 220 minutes allow covering larger surfaces without needing an intermediate recharge, which speeds up the total cleaning process. The Roborock models' 180 minutes are still sufficient for most homes, but the Dreame's margin offers greater peace of mind.
Smart Functions
The Dreame L40s Pro Ultra can overcome simple steps thanks to its lifting system, whilst the Roborock Qrevo Edge S5A and Qrevo S Pro reach up to 20 mm in height. This capability allows navigating thick carpets and small level changes without getting stuck.
An interesting difference is that the Dreame incorporates its own voice assistant in addition to compatibility with Alexa and Google Home. The Roborock models only offer integration with external assistants, without the robot's own voice.
Multifunction Cleaning Base
All three bases perform auto-emptying, mop washing with hot water and drying with hot air. However, the Dreame L40s Pro Ultra integrates third-generation tray self-cleaning, more advanced than the Qrevo Edge S5A's 2.0 version. The Qrevo S Pro directly doesn't include tray self-cleaning.
Only the Dreame has an integrated detergent tank in the base, which allows adding cleaning product that's dispensed during mop washing. The Roborock models don't offer this option. The Dreame also has an optional kit for connection to water pipes, although it must be purchased separately.
In capacities, the Dreame has the advantage with a 3.2-litre dust bag compared to 2.7 litres for the Roborock models. The clean water tank is 4.5 litres in the Dreame and 4 litres in the Roborock models. Dirty water accumulates in 4 litres in the Dreame and 3.5 litres in both Roborock models. These differences mean fewer emptyings and refills with the Dreame model.
Dimensions
The Dreame L40s Pro Ultra measures 350 mm in diameter and 103.8 mm in height. The Roborock models are slightly wider (352-353 mm) but considerably lower: 98 mm for the Qrevo Edge S5A and 96.5 mm for the Qrevo S Pro. This height difference can be relevant for passing under low furniture, beds or sofas with little clearance from the floor.
The Dreame's base reaches 590.5 mm in height compared to 521 mm for the Qrevo Edge S5A and 519 mm for the Qrevo S Pro. In return, the Dreame's base is less deep (456.7 mm) than the Roborock models (487 mm). It's advisable to measure the available space before deciding, especially if you plan to place the base in a cupboard or specific recess.
The robot's tanks are around 300-330 ml for dust and 80 ml for water in all three cases, without significant differences affecting daily use.
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 power. The dual camera with recognition of 180 obstacles is especially useful in homes with young children where there are toys scattered on the floor.
If you live with pets, the Dreame's dual HyperStream brush minimises hair tangles, although the Qrevo Edge S5A's DuoDivide system also works well in this regard. The Dreame's specific pet recognition allows configuring dynamic exclusion zones when it detects the animal.
For those seeking absolute automation without maintenance, the Dreame stands out for automatically removing the mops when only vacuuming, for the integrated detergent tank and for third-generation tray self-cleaning. The Qrevo S Pro requires more manual intervention as it lacks dirt detection and tray self-cleaning.
The reduced height of the Roborock models facilitates cleaning under low furniture where the Dreame wouldn't fit. If you have lots of furniture close to the floor, the 96.5-98 mm height of the Roborock models makes a difference compared to the Dreame's 103.8 mm.
Conclusion: Which One to Choose?
Choose Dreame L40s Pro Ultra if: You're looking for the most advanced technology with dual AI camera, pet recognition and remote camera access. You have a large home requiring extended battery life and generous tanks. You value total automation with automatic mop removal and detergent tank. You live with pets and need the best anti-tangle system. You want maximum suction power and the most complete mopping with Roboswing and mop extension.
Choose Roborock Qrevo Edge S5A if: You prefer the proven reliability of Roborock as a world-leading brand. You need a lower robot that passes under furniture close to the floor. You value the DuoDivide anti-tangle system and mop extension for edges without needing an AI camera. You're looking for dirt detection on mops and floor with 2.0 tray self-cleaning. The RR Mason 11.0 algorithm offers you sufficient intelligence without added complications.
Choose Roborock Qrevo S Pro if: You're looking for a more recent Roborock model with minimum height of 96.5 mm to access under any furniture. You don't need mop extension or advanced dirt detection. You prefer a simple and effective robot without extra features that increase the price. You value Roborock's reliability but don't require the Qrevo Edge S5A's features. Your home is medium-sized and you don't need the Dreame's extended battery life.
