✨ VS Analyze · VacuumSpain comparison technology. AI-generated explanation based on verified technical data.
Introduction
This comparison pits three high-end robot vacuum cleaners launched between 2024 and 2025 against each other. The Dreame L40 Ultra AE and the Mova E40 Ultra represent the 2025 generation of the Dreame family, whilst the Roborock Qrevo Curv S5X arrived in 2024 as a benchmark from the sector's leading brand. All three models integrate a multifunctional base with auto-emptying, mop washing and drying, offering almost total autonomy in daily cleaning.
We're talking about devices designed for medium and large homes that seek to completely delegate vacuuming and mopping tasks. The differences between them are concentrated in technical details that define the user experience: from the type of brush to the washing water temperature or the presence of an AI camera.
Power and Suction
The Dreame L40 Ultra AE and the Mova E40 Ultra reach 19,000 Pa of suction, slightly exceeding the 18,500 Pa of the Roborock Qrevo Curv S5X. In practice, this 500 Pa difference is barely noticeable in domestic use, although it may be apparent when vacuuming long-pile carpets or embedded debris.
What does make a difference is the main brush. The Dreame L40 Ultra AE features the TriCut 3.0 system, which combines bristles with blades to cut tangled hair. Additionally, this brush automatically lifts when mopping, preventing it from getting wet and dirtying already clean areas. The Mova E40 Ultra is equipped with a simple silicone brush, more basic but effective in reducing tangles. The Roborock Qrevo Curv S5X opts for the DuoDivide, an anti-tangle design that pushes hair towards the central gap to facilitate direct suction.
Regarding the side brush, the Roborock Qrevo Curv S5X incorporates a side extension to improve sweeping in corners, a function that the Dreame and Mova models don't have. The Mova E40 Ultra and the Roborock Qrevo Curv S5X feature an anti-tangle side brush, whilst the Dreame L40 Ultra AE doesn't specify this characteristic. None of the three lifts the side brush during mopping.
Mopping
All three robots use a dual rotating mop system. The Dreame L40 Ultra AE and the Mova E40 Ultra rotate at 180 RPM, whilst the Roborock Qrevo Curv S5X reaches 200 RPM. This higher rotation speed can translate into more intensive mopping, especially on dried stains.
Both the Dreame L40 Ultra AE and the Mova E40 Ultra integrate the RoboSwing system, which extends the mops through a swinging movement to better reach edges and corners. The Roborock Qrevo Curv S5X also extends the mops, although without that specific movement. Mop lift is practically identical: 10.5 mm in the first two, 10 mm in the Roborock. Sufficient to pass over thin carpets without wetting them.
Dirt detection clearly differentiates the Mova E40 Ultra from the rest. The Dreame L40 Ultra AE and the Roborock Qrevo Curv S5X detect dirt both on the mops and on the floor, adjusting mopping accordingly. The Mova E40 Ultra lacks this function, which limits its ability to adapt to difficult stains.
None of the three models automatically removes the mops at the base to perform vacuuming only, nor do they mop the floor with hot water from the robot's internal tank.
Navigation System
All three devices feature a 360° LIDAR turret for mapping and navigation, guaranteeing precision in route planning. The key difference lies in artificial intelligence and additional sensors.
The Dreame L40 Ultra AE stands out with a front AI camera, night vision LED and remote camera access. This allows home monitoring from the app, identifies objects with greater precision and recognises up to 120 different obstacles. Additionally, it recognises pets and adapts cleaning to their presence. The CleanGenius 2.0 system manages intelligent cleaning according to the type of dirt and surface.
The Mova E40 Ultra doesn't incorporate an AI camera or front LED, although it does feature a front 3D laser sensor to avoid obstacles. It recognises pets and uses CleanGenius 1.0, an earlier version of Dreame's intelligent cleaning system. It doesn't allow remote camera access because it simply doesn't have one.
The Roborock Qrevo Curv S5X doesn't integrate an AI camera or front 3D laser sensor either, but compensates with the RR Mason 11.0 algorithm and the SmartPlan 2.0 system, which manages routes and cleaning modes efficiently. It doesn't recognise pets specifically, although it does avoid general obstacles.
Autonomy and Battery
All three robots are equipped with a 5,200 mAh battery, generous capacity for large homes. The Mova E40 Ultra declares 210 minutes of autonomy, compared to the 180 minutes of the Roborock Qrevo Curv S5X. The Dreame L40 Ultra AE doesn't specify this data, although sharing a battery with the Mova E40 Ultra suggests it offers similar figures.
In practice, these autonomies allow coverage of between 200 and 300 m² in a single vacuuming cycle, depending on the power mode and floor type. If the battery runs out mid-clean, all three models automatically return to the base, recharge and continue where they left off.
Smart Functions
All three robots overcome obstacles up to 20 mm in height, sufficient to navigate thick cables, expansion joints or small level changes between rooms. None incorporates a robotic arm or its own voice assistant, although all are compatible with Alexa and Google Home for external voice control.
The identical obstacle-overcoming capability in all three models facilitates cleaning in homes with transitions between floors or small internal steps.
Multifunctional Cleaning Base
All three bases auto-empty the robot's dust bin, wash and dry the mops with hot air at 45°C. The main difference lies in the washing water temperature.
The Dreame L40 Ultra AE and the Roborock Qrevo Curv S5X wash mops with hot water at 75°C, which improves the removal of grease and bacteria. The Mova E40 Ultra uses cold water, less effective on difficult stains. This difference can be particularly noticeable in kitchens or areas with greasy dirt.
The Dreame L40 Ultra AE and the Roborock Qrevo Curv S5X integrate second-generation self-cleaning of the washing tray, a function that prevents dirt accumulation in the base itself. The Mova E40 Ultra doesn't include this self-cleaning, which requires manual tray cleaning more frequently.
The detergent tank is included as standard in the Dreame L40 Ultra AE, sold as an optional accessory in the Mova E40 Ultra and isn't available in the Roborock Qrevo Curv S5X. This affects maintenance: with detergent, mops are washed better and the base stays cleaner.
The dust bags of the Dreame L40 Ultra AE and the Mova E40 Ultra have 3.2 litres capacity, compared to the 2.5 litres of the Roborock Qrevo Curv S5X. The clean water tanks are 4.5 litres in the first two and 4 litres in the Roborock; the dirty water tanks, 4 litres versus 3 litres. These differences extend maintenance intervals in the Dreame and Mova models.
The Dreame L40 Ultra AE offers a plumbing connection kit as an optional accessory, something that isn't available in the other two models. It's worth remembering that this kit is purchased separately and isn't included as standard.
Dimensions
The Dreame L40 Ultra AE and the Mova E40 Ultra measure 350 mm in diameter and 97 mm in height. The Roborock Qrevo Curv S5X is slightly larger: 352 mm in diameter and 98 mm in height. These differences are minimal and don't affect the ability to pass under standard furniture.
The bases, however, present notable differences. The Dreame L40 Ultra AE and the Mova E40 Ultra share a vertical design: 340 mm wide, 590.5 mm high and 456.7 mm deep. The Roborock Qrevo Curv S5X has a compact square format of 450 mm in all three dimensions. This means the Roborock base takes up less space in height, facilitating its placement under worktops or low shelving. The Dreame and Mova bases are narrower but considerably taller.
The robot's dust bin also varies: 395 ml in the Dreame L40 Ultra AE, 325 ml in the Roborock Qrevo Curv S5X and 300 ml in the Mova E40 Ultra. Greater internal capacity means fewer trips to the base during cleaning, although with auto-emptying this difference loses relevance.
Real-World User Experience
In homes with pets, the Dreame L40 Ultra AE offers clear advantages: specific animal recognition, TriCut 3.0 brush that cuts tangled hair and camera with remote access to monitor them. The Mova E40 Ultra also recognises pets and its silicone brush reduces tangles, although it lacks a camera. The Roborock Qrevo Curv S5X compensates with the DuoDivide system, especially effective against hair, but doesn't identify pets specifically.
For large houses, the 210 minutes of autonomy of the Mova E40 Ultra and its larger water tank capacity prove advantageous. The Roborock Qrevo Curv S5X offers 180 minutes, sufficient for most homes. The Dreame L40 Ultra AE doesn't declare autonomy, although its 5,200 mAh battery suggests similar performance to the Mova E40 Ultra.
In kitchens or areas with grease, the 75°C hot water of the Dreame L40 Ultra AE and the Roborock Qrevo Curv S5X makes a difference compared to the cold water of the Mova E40 Ultra. The dirt detection on mops and floor of the Dreame and the Roborock also helps to persist on difficult stains, a function absent in the Mova.
If you're looking for minimum maintenance, the Dreame L40 Ultra AE stands out with second-generation tray self-cleaning, included detergent tank and greater bag and tank capacity. The Roborock Qrevo Curv S5X also self-cleans its tray, but doesn't integrate a detergent tank and its tanks are smaller. The Mova E40 Ultra requires manual tray cleaning and detergent is optional.
The compact base of the Roborock Qrevo Curv S5X facilitates its integration in reduced spaces or under low furniture. The vertical bases of the Dreame L40 Ultra AE and the Mova E40 Ultra take up less floor space but require more clearance height.
Conclusion: Which to Choose?
