Introduction
This comparison brings together three premium robot vacuum cleaners launched in 2025 and early 2026. The Dreame L40s Pro Ultra and Mova P50s Ultra represent Dreame's dual-brand strategy, whilst the Roborock Qrevo Curv 2 Flow arrives in February 2026 as Roborock's latest flagship. All three feature multifunctional bases with hot water mop washing and hot air drying, positioning them firmly in the high-end segment.
These models suit large homes requiring minimal maintenance. The multifunctional bases handle mop washing and drying automatically, ensuring consistently clean mopping throughout the cleaning cycle. Each robot returns to the base multiple times during a session to wash the mops, which makes a tangible difference to floor cleanliness compared to models that simply drag dirty mops around.
Suction Power and Brushing
The Mova P50s Ultra pushes suction to 24,000 Pa, which gives it a clear edge when dealing with embedded dirt in carpets or textured flooring. The Dreame L40s Pro Ultra sits at 19,000 Pa, whilst the Roborock Qrevo Curv 2 Flow offers 20,000 Pa. In practice, all three handle everyday debris comfortably, but that extra power from the Mova becomes noticeable with stubborn dirt or high-pile rugs.
Brush technology diverges meaningfully. The Dreame and Mova both use Dreame's HyperStream dual-brush design, which anchors two counter-rotating brushes at one end to prevent hair tangles. The Roborock counters with its DuoDivide system, channelling hair towards the central suction gap rather than wrapping it around bristles. Both approaches work well for pet owners, though the HyperStream design tends to require slightly less frequent manual cleaning.
All three lift their main brushes when mopping, preventing wet bristles from dragging across already-cleaned floors. Side brushes also elevate during mopping, and each model includes anti-tangle features. The Dreame and Mova extend their side brushes to reach deeper into corners, which the Roborock cannot do. For homes with complex floor plans or lots of furniture legs, that extensible brush makes a tangible difference to edge coverage.
Mopping Systems
Here we see a fundamental split. The Dreame L40s Pro Ultra and Mova P50s Ultra use dual rotating mop pads with Roboswing technology, allowing the robot to wiggle slightly and push the mop under furniture edges and skirting boards. The Roborock Qrevo Curv 2 Flow opts for a 270 mm roller mop that spins continuously. Both approaches deliver thorough mopping, but the roller design excels on larger open floors whilst the dual pads navigate tighter spaces more effectively.
Mop extension matters for edge coverage. The Dreame and Mova combine extension with Roboswing movement, whilst the Roborock extends its mop without the wiggle motion. All three detect dirt on the floor and adjust cleaning intensity accordingly, and all sense when mops need re-washing at the base.
Mop lift height varies noticeably. The Roborock raises its mops 15 mm and can lift its entire chassis for an additional boost, which helps when transitioning from hard floors to thick rugs. The Dreame and Mova manage 10.5 mm lift, sufficient for most carpets but less capable with very deep pile. Importantly, the Dreame and Mova automatically detach their mops at the base when you want vacuum-only operation, avoiding the need to manually remove pads. The Roborock requires manual mop removal for pure vacuuming.
All three bases wash mops with hot water and dry them with heated air, preventing bacterial growth and musty smells. This combination is essential for maintaining hygiene over weeks of use.
Navigation Technology
Each robot employs LiDAR for mapping, supplemented by dual AI cameras on the Dreame and Mova, and a single camera on the Roborock. The Dreame recognises 180 obstacle types, whilst the Mova and Roborock identify 200 each. In real-world use, this translates to confident navigation around furniture, cables, shoes and pet toys.
All three detect pets and include LED lighting for low-light navigation. Remote camera access is available across the range, letting you check on your home via the app. The Dreame and Mova specifically detect curtains, preventing the robot from tangling itself in floor-length drapes. The Roborock lacks this specific curtain recognition, though its general obstacle avoidance usually prevents issues.
Intelligent cleaning routines differ slightly. The Dreame and Mova use CleanGenius AI, whilst the Roborock employs SmartPlan. Both systems learn room layouts, suggest cleaning schedules and adjust suction or mopping intensity based on floor type and dirt levels.
Battery Life and Coverage
Battery capacity tells part of the story. The Mova P50s Ultra packs a substantial 6,400 mAh cell, compared to 5,200 mAh in both the Dreame L40s Pro Ultra and Roborock Qrevo Curv 2 Flow. Yet the Dreame manages 220 minutes runtime, and the Roborock extends that to 242 minutes despite the smaller battery. Roborock's efficiency here is impressive.
The Mova doesn't specify runtime, which is unusual given its larger battery. In practice, all three handle large homes comfortably, automatically returning to the base to recharge if needed before resuming cleaning. For properties exceeding 200 square metres, the extended runtime of the Roborock provides extra reassurance.
Advanced Capabilities
Obstacle climbing varies. The Dreame and Mova both tackle single-step transitions, useful for managing door thresholds or slight level changes between rooms. The Roborock specifies 20 mm climbing ability, which handles most standard thresholds without issue. None of these models includes a robotic arm for picking up objects.
Each robot features its own voice assistant alongside compatibility with Alexa and Google Home. This allows hands-free control without needing external smart speakers, though you can integrate with existing setups if preferred.
Multifunctional Base Station
All three bases auto-empty the dust bin, wash mops with hot water and dry them with heated air. The Dreame and Mova include third-generation automatic tray cleaning, which flushes the washing area after each mop cycle to prevent grime buildup. The Roborock also cleans its tray, though the generation isn't specified.
The Mova P50s Ultra uniquely adds UV disinfection to the base, targeting bacteria on mops and in the washing area. This appeals to households particularly concerned about hygiene, though hot water washing and hot air drying already provide substantial antibacterial action.
Detergent dispensers appear on the Dreame and Mova, automatically adding cleaning solution during mop washing. The Roborock omits this feature, relying on hot water alone. Whilst not essential, detergent does improve grease removal on kitchen floors.
Dust bag capacity sits at 3.2 litres for the Dreame and Mova, compared to 2.7 litres for the Roborock. This means slightly less frequent bag changes with the first two. Clean water tanks measure 4.5 litres (Dreame), 4 litres (Mova and Roborock), with dirty water tanks ranging from 3.5 to 4 litres. These capacities suit large homes, typically lasting several weeks between refills.
The Dreame offers an optional water connection kit, purchased separately, allowing permanent plumbing to the base. This eliminates manual refilling entirely, though it requires installation and isn't included as standard. Neither the Mova nor Roborock provides this option.
Physical Dimensions
Height matters for furniture clearance. The Mova P50s Ultra measures just 82.5 mm tall, making it the clear winner for slipping under low sofas and beds. The Dreame L40s Pro Ultra stands at 103.8 mm, whilst the Roborock Qrevo Curv 2 Flow reaches 119 mm. If your furniture sits close to the floor, the Mova accesses areas the others simply cannot reach.
Diameter stays similar across all three, between 350 mm and 353 mm. Weight isn't specified, but these dimensions are standard for premium robots.
Base stations differ more substantially. The Dreame measures 340 mm wide, 456.7 mm deep and 590.5 mm tall, making it the tallest station. The Mova spans 420 mm wide, 458 mm deep and 470 mm tall. The Roborock forms a 450 mm cube. The Dreame's narrower width suits tighter spaces, whilst the Roborock's uniform dimensions simplify corner placement.
Real-World Performance
For large homes with pets, the Mova P50s Ultra brings the highest suction and largest battery, tackling embedded fur and covering extensive floor areas. Its low profile reaches under more furniture, and UV disinfection adds peace of mind. The absence of runtime data is frustrating, but the battery capacity suggests strong performance.
The Dreame L40s Pro Ultra balances power with proven reliability. The extensible side brush and Roboswing mopping handle complex layouts well, whilst the optional water connection kit suits those wanting maximum convenience. Its narrower base fits more easily into tight utility spaces.
The Roborock Qrevo Curv 2 Flow excels in battery efficiency, running 242 minutes from a 5,200 mAh cell. The roller mop covers large open floors quickly, and 15 mm mop lift handles thicker carpets better. The larger base requires more space, and the lack of detergent dispenser may disappoint some users, but Roborock's reputation for reliability and app quality remains unmatched.
All three manage automatic mop washing and drying, which transforms mopping from a mediocre afterthought into genuinely effective floor cleaning. The bases handle most maintenance automatically, requiring only occasional water refills and bag changes.
Conclusion: Which One to Choose?
Choose the Dreame L40s Pro Ultra if you want proven performance with the option to add permanent water connection later. The narrower base suits compact utility rooms, and the extensible side brush improves corner coverage. It's a solid all-rounder for mixed floor types and moderate pet hair.
Choose the Mova P50s Ultra if maximum suction power and low-profile access matter most. That 82.5 mm height reaches under furniture the others cannot, whilst 24,000 Pa tackles the toughest embedded dirt. UV disinfection adds extra hygiene reassurance, and the large battery promises extended runtime even if specifications don't confirm exact figures.
Choose the Roborock Qrevo Curv 2 Flow if you prioritise battery efficiency, brand reliability and superior carpet transition. The 242-minute runtime covers very large homes, whilst 15 mm mop lift handles thick rugs confidently. Roborock's app remains the benchmark for ease of use, and the roller mop excels on expansive hard floors. The lack of detergent dispenser is the main compromise, but hot water washing still delivers excellent results.
