Introduction
Choosing between the Mova E40 Ultra and the two Roborock models—the Qrevo S5V and the QV 35A—can be tricky if you don't properly analyse the technical differences. All three units arrive on the market in 2025 as proposals seeking to offer complete automatic cleaning: they vacuum, mop, self-empty and feature bases that wash and dry the mops. They seem similar at first glance, but the differences in power, tank capacity and navigation functions mark significant distances.
The Mova E40 Ultra presents itself as a more powerful option with greater tank capacity, whilst the two Roborock models opt for a more compact base design and established technical solutions. The QV 35A is the entry-level model within this comparison, with lower suction power and without some advanced functions that its competitors do include.
Power and Suction
The difference in suction power is very evident. The Mova E40 Ultra delivers 19,000 Pa, a figure that clearly exceeds the 12,000 Pa of the Roborock Qrevo S5V and especially the 8,000 Pa of the Roborock QV 35A. In practice, this translates into better capacity to vacuum embedded dust in carpets or heavier debris such as sand or large crumbs.
The type of main brush also varies. The E40 Ultra incorporates the HyperStream system, designed to reduce hair tangles thanks to its double brush configuration anchored at one end. The Qrevo S5V mounts Roborock's DuoDivide brush, which pushes hairs towards the central gap to facilitate suction and minimise tangles. The QV 35A, on the other hand, features a simple brush without advanced anti-tangle technology, which may mean more maintenance if there are pets at home.
None of the three models offers main brush lifting during mopping nor extendable side brush. All three do include an anti-tangle side brush, which helps reduce maintenance on this part.
Mopping
All three robots mop with a dual rotating mop system, but the differences appear in the details. The Mova E40 Ultra and the Roborock Qrevo S5V feature mop extension for edges, which allows better mopping along skirting boards and corners. The Roborock QV 35A doesn't have this function, remaining somewhat more limited in perimeter mopping.
The E40 Ultra lifts the mops up to 10.5 mm when it detects carpets, half a millimetre more than the 10 mm of the two Roborock models. Although the difference is minimal, it may make some difference when climbing thicker carpets. The E40 Ultra also includes the Roboswing system, which performs a lateral movement to get the mop under furniture or protrusions, something the Roborock models don't offer.
All wash the mops in the base with cold water and dry them with hot air. None automatically removes the mops at the base for vacuum-only mode, nor detects dirt on the mops or floor for automatic re-mopping. Mopping with cold water is sufficient for regular dirt, although more advanced models from other ranges already incorporate hot water.
Navigation System
All three units navigate using LiDAR turret and feature obstacle avoidance. None mounts an AI camera nor front LED for night vision, which limits visual object recognition compared to higher-end models.
The Mova E40 Ultra differentiates itself by including a front 3D laser sensor, which improves detection of low and small obstacles. It also integrates pet recognition, useful for adjusting routes and avoiding disturbing dogs or cats during cleaning. The two Roborock models lack these functions.
All three models offer AI intelligent cleaning: the E40 Ultra uses CleanGenius and the Roborock models employ SmartPlan. These functions allow adjusting routes and cleaning parameters according to floor type or detected dirt level.
Battery Life and Battery
The battery capacity is identical in all three: 5,200 mAh. However, the Mova E40 Ultra achieves greater battery life with 210 minutes of operation, compared to the 180 minutes of the two Roborock models. This difference may be due to optimisations in energy consumption or to the E40 Ultra's greater power not penalising as much as might be expected.
For large homes, those extra 30 minutes can be decisive, especially if the robot must complete several rooms without returning to charge. In small or medium-sized flats, the Roborock models' 180 minutes are usually more than sufficient.
Smart Functions
All three robots overcome obstacles up to 20 mm in height, which allows crossing small level changes such as door joints or thick carpets without problems. None incorporates a robotic arm nor own voice assistant, but all are compatible with external assistants such as Alexa or Google Home.
Multifunction Cleaning Base
All three bases perform auto-emptying of the dust container, mop washing with hot water and drying with hot air. None includes self-cleaning of the washing tray, UV disinfection nor automatic mop changing.
The Mova E40 Ultra stands out for its more generous tanks: 3.2 litres dust bag compared to 2.7 litres in the Roborock models, and 4.5 litres of clean water compared to 4 litres. The dirty water tank is also larger in the E40 Ultra, with 4 litres compared to 3.5 litres. This translates into fewer emptyings and refills, especially useful in large homes or with intensive use.
The E40 Ultra allows adding an optional detergent tank, which is purchased separately. The two Roborock models don't offer this possibility. Although it's not an essential function, it can improve mopping results on floors with difficult stains.
None of the three models offers integrated plumbing connection nor optional kit for it.
Dimensions
The diameter of the robots is almost identical: 350 mm for the E40 Ultra and 353 mm for the two Roborock models. The height is also similar, with 97 mm for the Mova and 96.5 mm for the Roborock models. These millimetric differences don't affect in practice the ability to fit under furniture.
The bases do present more notable variations. The Mova E40 Ultra's is taller (590.5 mm compared to 521 mm) but less deep (456.7 mm compared to 487 mm). This can influence placement: the E40 Ultra's base needs more vertical space but occupies less depth, whilst the Roborock ones are lower but protrude more.
Real-World User Experience
The Mova E40 Ultra is more suitable for large homes thanks to its greater battery life, suction power and base tank capacity. The 3D laser sensor and pet recognition add value if there are animals at home or many small obstacles. The HyperStream system reduces main brush maintenance.
The Roborock Qrevo S5V offers an interesting balance: sufficient suction power for most homes, mop extension for edges and the DuoDivide brush that minimises tangles. The more compact base in height facilitates its placement under shelves or low furniture.
The Roborock QV 35A is the most basic option, with 8,000 Pa of suction and without mop extension. It may be sufficient for small flats without thick carpets or pets, but it remains limited compared to the other two models in features.
Conclusion: Which to Choose?
Choose the Mova E40 Ultra if you're looking for maximum suction power, you have a large home that requires greater battery life, you live with pets or you prefer larger tanks in the base to reduce maintenance. The 3D laser sensor and pet recognition are additional advantages. The option to add detergent may interest you if you need deeper mopping.
Choose the Roborock Qrevo S5V if you prefer an established brand, you value the DuoDivide brush to reduce tangles and you need a less tall base that fits better under furniture. The 12,000 Pa power covers well the needs of most homes, and the mop extension improves mopping at edges.
Choose the Roborock QV 35A if you have a small flat without thick carpets, you don't live with pets and you're looking for a more economical solution. It's functional for basic daily cleaning, but its limitations in power and absence of mop extension leave it behind in features.
