Introduction
The Mova E40 Ultra arrives in 2025 as this Dreame sub-brand's bid to compete directly with high-end models. Against it we have the Dreame L40 Ultra, launched in 2024, which represents the parent brand's premium line, and the Roborock QV 35A from 2025, a model from the world's leading robot vacuum brand. All three units feature a complete multifunction base, which means they not only empty dust automatically, but also wash and dry the mops after each mopping session.
We're talking about robots designed for users seeking maximum automation in home cleaning. The presence of bases with generous water tanks and hot water washing systems places them in a segment where manual maintenance is reduced to a minimum.
Power and Suction
The most striking difference in this section is marked by the Mova E40 Ultra with its 19,000 Pa of suction power. It's a figure that practically doubles the 11,000 Pa of the Dreame L40 Ultra and far exceeds the 8,000 Pa of the Roborock QV 35A. In practice, this translates to greater capacity to extract ingrained dirt from carpets and tile joints.
As for the brushing system, the Dreame L40 Ultra mounts the TriCut 3.0 brush, which combines bristles with blades to cut tangled hair. The Mova E40 Ultra and Roborock QV 35A use a simplified brush. All three models include an anti-tangle side brush, but only the Dreame L40 Ultra can lift both the main brush and side brush during mopping, preventing them from getting wet. Additionally, its side brush is extendable, which improves cleaning in corners.
These features position the Dreame L40 Ultra as the most versatile unit in terms of automatic adaptation according to the task, whilst the Mova E40 Ultra opts for brute suction force.
Mopping
All three robots mop with a dual rotating mop system. The Mova E40 Ultra and Dreame L40 Ultra feature mop extension via Roboswing movement, which allows the mop to slightly reach under overhangs and furniture. The Roborock QV 35A does not include this function.
Mop lifting is present on all three models, with 10.5 mm on the first two and 10 mm on the Roborock. Sufficient to avoid wetting short-pile carpets during the robot's passage.
The Dreame L40 Ultra stands out as the only one capable of automatically removing the mops at the base when only vacuuming is desired. It also incorporates dirt detection on both the mops and floor, which allows it to re-mop particularly dirty areas or wash the mops more frequently if it detects they're getting dirty quickly.
Regarding mop washing at the base, the Mova E40 Ultra and Dreame L40 Ultra use hot water at 70°C, which helps better eliminate grease and bacteria. Drying is also with hot air at 55°C. The Roborock QV 35A, on the other hand, washes with cold water and dries with cold air, which lengthens drying time and may encourage the appearance of bad odours if the base isn't well ventilated.
Only the Dreame L40 Ultra includes second-generation self-cleaning on the washing tray, reducing manual maintenance of this area.
Navigation System
All three robots mount a LIDAR turret to map the home with precision. Where differences emerge is in the obstacle avoidance systems. The Mova E40 Ultra and Dreame L40 Ultra incorporate a front 3D laser sensor, whilst the Roborock QV 35A doesn't include it.
The Dreame L40 Ultra goes further by integrating dual AI camera capable of recognising up to 100 different types of obstacles. This includes pet recognition and curtain detection, something the Mova E40 Ultra only partially covers (recognises pets but not curtains) and the Roborock QV 35A doesn't offer at all. Additionally, the Dreame L40 Ultra features night vision LED and allows remote camera access for home surveillance.
All three units feature AI-based intelligent cleaning systems: CleanGenius on the Dreame/Mova models and SmartPlan on the Roborock. The Dreame L40 Ultra adds AI stain recognition to intensify cleaning in those areas.
Autonomy and Battery
Battery capacity is identical on all three robots: 5,200 mAh. However, declared autonomy varies. The Mova E40 Ultra reaches 210 minutes, the Dreame L40 Ultra achieves 194 minutes and the Roborock QV 35A remains at 180 minutes.
These differences may be due to the consumption generated by each navigation system and the use of different components. In any case, we're looking at autonomies more than sufficient for homes of up to 200 square metres on a single charge.
Smart Features
The ability to overcome obstacles is slightly superior on the Dreame L40 Ultra, which reaches 22 mm compared to 20 mm on the Mova E40 Ultra and Roborock QV 35A. This can make the difference with certain types of thick carpets or door thresholds.
The Dreame L40 Ultra is the only one that incorporates its own voice assistant, in addition to being compatible with Alexa and Google Home like the other two models. This allows giving commands directly to the robot without needing to go through external smart speakers.
Multifunction Cleaning Base
All three robots feature a complete multifunction base: they auto-empty dust, wash the mops and dry them. We've already mentioned that the Mova E40 Ultra and Dreame L40 Ultra use hot water for washing (70°C) and hot air for drying (55°C), whilst the Roborock QV 35A employs cold water and air.
The Mova E40 Ultra and Dreame L40 Ultra share a 3.2-litre dust bag, 4.5-litre clean water tank and 4-litre dirty water tank. The Roborock QV 35A has a 2.7-litre bag, 4-litre clean water tank and 3.5-litre dirty water tank. In practice, this means the first two require fewer emptyings and refills.
As for the detergent tank, the Dreame L40 Ultra includes it as standard. The Mova E40 Ultra offers it as optional, which means it must be purchased separately. The Roborock QV 35A doesn't feature it.
The Dreame L40 Ultra allows purchasing a plumbing connection kit for water and drainage, although it's sold separately. This may interest those seeking maximum automation and don't want to refill or empty tanks manually.
Dimensions
The diameter is practically identical: 350 mm on the Mova E40 Ultra and Dreame L40 Ultra, and 353 mm on the Roborock QV 35A. Height does vary: the Roborock QV 35A measures 96.5 mm, the Mova E40 Ultra 97 mm and the Dreame L40 Ultra 103.8 mm. This can be relevant if you have low furniture. The Roborock and Mova are more likely to slip under sofas and beds with little ground clearance.
The bases of the Mova E40 Ultra and Dreame L40 Ultra are identical in width (340 mm) and share height (590.5 mm) and depth (456.7 mm). The Roborock QV 35A base is lower (521 mm) but deeper (487 mm), occupying similar space but with different distribution.
Real-World Usage Experience
The Mova E40 Ultra is particularly interesting for homes with thick carpets or long-haired pets, thanks to its 19,000 Pa of suction. The 210-minute autonomy and generous base tanks make it a solid option for large homes. Hot water washing guarantees always hygienic mops.
The Dreame L40 Ultra positions itself as the most complete robot in this comparison. The dual AI camera, recognition of 100 obstacles, dirt detection on floor and mops, and the ability to automatically remove mops make it ideal for those seeking maximum automation. The extendable brush and mop system improves cleaning on edges and corners. It's the robot that requires the least manual intervention.
The Roborock QV 35A stands out for its reduced height, which facilitates access under furniture. However, washing and drying with cold water and air may be less effective in long-term mop maintenance. The absence of AI camera and pet recognition places it a step below in terms of intelligence, although its SmartPlan system remains efficient.
Conclusion: Which to Choose?
Choose the Mova E40 Ultra if you're looking for the highest suction power on the market and have thick carpets or pets that shed a lot of hair. Its 210-minute autonomy and hot water mop washing make it a robust option for large homes. The price is usually more competitive than the Dreame L40 Ultra, although you lose some advanced AI features.
Choose the Dreame L40 Ultra if you want the most complete and automated robot in this comparison. The dual AI camera, obstacle recognition, dirt detection, automatic mop removal and extendable brushes justify the price difference. It's the robot that requires the least maintenance and best adapts to different cleaning situations. Ideal for homes with pets, young children and users who value cutting-edge technology.
Choose the Roborock QV 35A if you have low furniture and need a robot that can slip under them without problems. Its 96.5 mm height is the lowest of the three. It may also interest you if you prefer the reliability of Roborock, the world's leading brand, and don't need advanced AI features or pet recognition. Bear in mind that cold water mop washing requires greater maintenance attention to avoid bad odours.
