Introduction
Roborock presents three models that represent different approaches within its robot vacuum catalogue. The Roborock Qrevo CurvX arrives in 2025 as the brand's flagship, whilst the Roborock Qrevo Edge S5A was launched in 2024 as a mid-to-high-range proposition. The Roborock QV 35A, also from 2025, is positioned as a more accessible alternative without sacrificing essential automated cleaning functions.
All three units integrate a multifunctional base with auto-emptying, mop washing and drying, which guarantees minimal maintenance. However, differences in power, navigation and cleaning systems mark notable distances between them. The CurvX is designed for demanding users seeking maximum technology and autonomy. The Edge S5A offers an interesting balance between features and compact design. The QV 35A is aimed at those who prioritise well-executed basic functionality without unnecessary complications.
Power and Suction
Suction power marks substantial differences in this robot vacuum comparison. The Roborock Qrevo CurvX reaches 22,000 Pa, a figure that places it amongst the most powerful on the current market. The Roborock Qrevo Edge S5A offers 18,500 Pa, sufficient for most domestic situations. The Roborock QV 35A remains at 8,000 Pa, a more modest but functional power for daily maintenance in homes without thick carpets or pets with abundant hair.
All three units feature Roborock's DuoDivide anti-tangle brush, designed to push hair towards the central suction gap and minimise tangles. This system is especially useful in homes with pets. The side brush also incorporates anti-tangle technology in all three models.
The CurvX stands out with its liftable main brush, capable of raising between 7 and 17 mm during mopping to avoid wetting carpets. Neither the Edge S5A nor the QV 35A offer this function. As for the side brush, both the CurvX and the Edge S5A integrate side extension to improve cleaning in corners and edges. The QV 35A lacks this feature, which can be especially noticeable in corners and skirting boards.
Mopping
All three models employ a dual rotating mop system, the current standard for effective mopping. The Roborock Qrevo CurvX and the Edge S5A incorporate mop extension to better reach edges and skirting boards. The QV 35A does not have this function, being limited in perimeter cleaning during mopping.
Mop lift varies according to model. The CurvX can raise them between 7 and 17 mm, offering greater versatility when facing obstacles and carpets. Both the Edge S5A and the QV 35A lift the mops up to 10 mm, a height sufficient for medium-thickness carpets. All three mop with cold water.
An important difference appears in dirt detection. The CurvX and the Edge S5A detect dirt both on the mops and on the floor, automatically adjusting the cleaning process and re-scrubbing dirtier areas. The QV 35A does not include any dirt detection system, always performing the same mopping pattern without adapting to the actual dirt level. This can make a difference in kitchens or high-traffic areas.
None of the three automatically removes the mops at the base to perform pure vacuuming tasks without simultaneous mopping.
Navigation System
Here we find the most pronounced differences between these Roborock robot vacuums. The Qrevo CurvX features a retractable LiDAR system that reduces the robot's height to 79.8 mm, allowing it to access under low furniture where other models cannot fit. Additionally, it integrates a dual camera with artificial intelligence and a front 3D laser sensor for precise obstacle detection.
The Edge S5A uses conventional LiDAR turret, which explains its 98 mm height. It does not incorporate AI camera or front 3D laser sensor, although it maintains basic obstacle avoidance systems. The QV 35A also employs traditional LiDAR turret and reaches 96.5 mm in height, without camera or advanced sensors.
The CurvX recognises up to 108 different types of obstacles and specifically detects pets, adjusting its behaviour according to the situation. It offers remote camera access for home monitoring and features night vision LED. These functions are absent in the other two models, which do not have a camera.
All three execute Roborock's SmartPlan algorithm for route optimisation. The CurvX and the Edge S5A employ the RR Mason 11.0 processor, whilst the QV 35A does not specify its CPU in the available data.
Runtime and Battery
The Roborock Qrevo CurvX battery reaches 6,400 mAh, providing up to 220 minutes of continuous operation. This runtime is ideal for large homes or complete floors without the need for intermediate recharging. The Roborock Qrevo Edge S5A and the QV 35A feature 5,200 mAh batteries with 180 minutes runtime, sufficient for most medium-sized homes.
The 40-minute difference may seem minor, but in practice it means the CurvX completes larger surfaces in a single session. For homes exceeding 150 square metres with multiple rooms, this extra runtime translates into more efficient cleaning cycles.
Smart Functions
The ability to overcome thresholds shows notable differences. The Roborock Qrevo CurvX can cross simple thresholds thanks to its advanced suspension and detection system. Both the Edge S5A and the QV 35A overcome obstacles up to 20 mm in height, typical in transitions between rooms or thick carpets.
The CurvX integrates its own voice assistant, allowing commands to be given directly to the robot without intermediaries. All three models are compatible with Alexa and Google Home for control via external assistants.
Multifunctional Cleaning Base
All three units include a multifunctional base that performs auto-emptying of the dust bin, mop washing with hot water and drying with hot air. This configuration ensures that the mops are always clean during mopping and dry when finished, preventing bad odours.
Self-cleaning of the washing tray presents differences. The Roborock Qrevo CurvX features the 3.0 system, the most advanced version that keeps the tray more hygienic with less manual intervention. The Edge S5A incorporates version 2.0, also effective but less automated. The QV 35A does not include tray self-cleaning, requiring periodic manual cleaning.
The CurvX dust bag has a capacity of 2.5 litres, slightly lower than the 2.7 litres of the Edge S5A and QV 35A. In practice, this difference is barely noticeable in the bag change interval. The clean water tanks are identical: 4 litres in all three models. The CurvX dirty water tank is 3 litres, whilst the Edge S5A and QV 35A offer 3.5 litres.
None includes a detergent tank, UV disinfection or integrated plumbing connection. They also do not have an optional kit for plumbing connection.
Dimensions
The Roborock Qrevo CurvX measures 79.8 mm in height, making it the lowest of the three and allowing it to access under sofas, beds and low furniture where other robots cannot reach. The Roborock Qrevo Edge S5A reaches 98 mm and the QV 35A 96.5 mm, standard heights that may limit access under certain furniture.
The diameter is practically identical: 353 mm in the CurvX and QV 35A, 352 mm in the Edge S5A. This uniformity facilitates passage through narrow spaces similarly in all three models.
The bases present different dimensions. The CurvX base is more compact: 450 x 450 x 450 mm, with an almost cubic format. The Edge S5A and QV 35A bases measure 340 mm wide, 521 mm high and 487 mm deep, occupying less space in width but being taller. This should be considered if available space is limited or visual discretion is sought.
Real-World Experience
The Roborock Qrevo CurvX excels in large homes thanks to its 220-minute runtime and 22,000 Pa power. Its ability to pass under low furniture makes it especially useful in homes with modern low-legged furniture. Dirt detection and recognition of 108 obstacles minimise manual interventions. For homes with pets, specific recognition and the DuoDivide anti-tangle brush simplify daily maintenance.
The Roborock Qrevo Edge S5A works well in medium-sized flats where the 180-minute runtime is sufficient. Its 18,500 Pa power handles medium-thickness carpets and hard floors without problems. The mop extension improves perimeter mopping. Without a camera or advanced sensors, it may require some prior preparation of the space by removing small obstacles.
The Roborock QV 35A is better suited to small homes or users seeking well-executed basic functionality. Its 8,000 Pa power is adequate for daily maintenance on hard floors and thin carpets. The absence of mop extension and dirt detection implies more basic mopping results. The base requires manual cleaning of the tray as it does not include self-cleaning.
Conclusion: Which to Choose?
Choose the Roborock Qrevo CurvX if you seek the best robot vacuum 2025 without compromises, with maximum power, runtime and available technology. Ideal for large homes exceeding 150 m², homes with pets, users who value accessing under low furniture and those who want remote monitoring via camera. Its price will be higher, but it offers the most complete and autonomous experience.
Choose the Roborock Qrevo Edge S5A if you seek a balance between features and price in a Roborock robot vacuum. Perfect for flats of 80-150 m² with demanding cleaning needs but without requiring the most advanced technology. Its 18,500 Pa power and mop extension guarantee good results. Dirt detection maintains autonomy without sacrificing cleaning quality.
Choose the Roborock QV 35A if you prioritise well-executed essential functionality at a more competitive price. Recommended for small homes up to 80 m², users without pets or with basic daily cleaning needs. It includes a complete multifunctional base, although it requires slightly more manual attention in maintaining the washing tray.
