✨ VS Analyze · VacuumSpain comparison technology. AI-generated explanation based on verified technical data.
Introduction
Roborock presents three proposals within its Qrevo range that share a surname but mark clear differences in features. The Qrevo Curv S5X and the Qrevo Edge S5A arrived in 2024 as high-end options, whilst the QV 35A lands in 2025 as a more accessible alternative within the family. All three units incorporate a multifunction base with mop washing and drying, which guarantees real mopping compared to basic models that only drag a damp cloth.
The main difference lies in suction power and intelligent functions. The first two offer 18,500 Pa and advanced detection systems, whilst the QV 35A offers 8,000 Pa with a more straightforward approach. All share the same 180-minute runtime and a 5,200 mAh battery, sufficient for medium and large homes without the need for intermediate recharges.
Power and Suction
The gap in suction power is considerable. The Roborock Qrevo Curv S5X and the Qrevo Edge S5A reach 18,500 Pa, more than double the 8,000 Pa of the QV 35A. This difference is especially noticeable on medium and long pile carpets, where the capacity to extract embedded dirt marks clear distances.
All three incorporate Roborock's DuoDivide anti-tangle brush, designed to push hair and strands towards the central suction gap rather than wrapping them around the bristles. The side brush also features an anti-tangle system in all cases, but only the Curv S5X and the Edge S5A add side extension to sweep corners better. This extendable arm allows reaching corners that conventional brushes cannot reach with the same effectiveness.
None of the three models lifts the main brush or the side brush during mopping, something we do find in other ranges from the brand.
Mopping
All feature a dual rotating mop system, but the similarities end there. The Roborock Qrevo Curv S5X and the Qrevo Edge S5A incorporate mop extension for edges, allowing mopping right up against skirting boards and corners where fixed mops leave an uncleaned margin. The QV 35A keeps the mops in a fixed position.
Mop lift reaches 10 mm on all three robots, sufficient to climb onto medium-thickness carpets without wetting them. What changes radically is water management at the base. The Curv S5X and the Edge S5A wash the mops with hot water and dry them with hot air, speeding up the process and preventing bad odours. The QV 35A uses cold water for washing and cold air for drying, which lengthens times and may leave residual moisture if the base area is not well ventilated.
Dirt detection marks another important difference. The high-end models detect when the mops are dirty and when the floor requires a second pass, automatically adjusting the number of passes and returns to the base to wash the mops. The QV 35A follows predefined cleaning patterns without adapting to the actual dirt on the floor.
None automatically removes the mops at the base to perform vacuum-only tasks, a function that does exist in other models on the market.
Navigation System
All three robots use a LiDAR turret for mapping and navigation, with integrated obstacle avoidance. All incorporate Roborock's SmartPlan system, which manages routes and plans cleaning intelligently. The Curv S5X and the Edge S5A run on the RR Mason 11.0 processor, although the QV 35A's chip is not specified.
None features a front-facing AI camera, 3D laser sensor or LED for night vision. Nor do they offer remote camera access, specific pet recognition or curtain detection. Navigation is based exclusively on the turret laser and obstacle avoidance sensors.
Runtime and Battery
Absolute equality in this section. All three models are equipped with a 5,200 mAh battery with a declared runtime of 180 minutes. In practice, this figure is achieved in low power mode on hard floors. Activating maximum power or intensive mopping reduces runtime considerably, although it remains sufficient for homes of up to 150-180 square metres on a single charge.
No data is provided on charging time or maximum recommended area, although the runtime suggests they are designed for medium-large homes without coverage issues.
Intelligent Functions
The ability to overcome obstacles is identical: 20 mm in height. Sufficient to navigate thick cables, medium-thickness carpets and small level changes between rooms. All three models are compatible with external voice assistants such as Alexa or Google Home, but none integrates its own assistant or robotic arm.
Multifunction Cleaning Base
Here important functional differences appear. All three bases perform auto-emptying of the dust container, mop washing and drying, but the Roborock Qrevo Curv S5X and the Qrevo Edge S5A add tray self-cleaning 2.0, which keeps the washing area free from debris and accumulated dirt. The QV 35A does not incorporate this function, which requires manual cleaning of the tray more frequently.
Dust bag capacity varies slightly: 2.5 litres in the Curv S5X versus 2.7 litres in the other two. In practice, this difference is barely noticeable in the bag change interval. More relevant is the size of the dirty water tank: 3 litres in the Curv S5X and 3.5 litres in Edge S5A and QV 35A. Large homes with lots of floor to mop will appreciate those extra 500 ml to reduce emptying.
The clean water tank is 4 litres in all cases. None includes a detergent tank, UV disinfection or connection to integrated plumbing or via optional kit.
Dimensions
The robots are practically identical in size. The Curv S5X and the Edge S5A measure 352 mm in diameter with 98 mm in height, whilst the QV 35A reaches 353 mm in diameter and 96.5 mm in height. Those 1.5 mm less can make the difference in very tight furniture, although in most cases it is not noticeable.
The base is where drastic changes appear. The Roborock Qrevo Curv S5X occupies 450x450x450 mm, an almost perfect cube that requires considerable floor space. The Qrevo Edge S5A and the QV 35A reduce the width to 340 mm, although they increase height (521 mm) and depth (487 mm), resulting in a more streamlined base that is easier to fit into corners or next to furniture. For kitchens or utility rooms with limited space, the compact base of the Edge S5A or the QV 35A makes installation much easier.
Real-World Experience
The Roborock Qrevo Curv S5X and the Qrevo Edge S5A are designed for those seeking total automation with minimum maintenance. Dirt detection adjusts passes according to actual need, hot water washing removes greasy residue better and hot air drying reduces odours. Tray self-cleaning 2.0 extends manual maintenance intervals.
In homes with pets, the DuoDivide anti-tangle brush works well on all three models, but the greater suction power of the Curv S5X and the Edge S5A extracts embedded hair from carpets and rugs better. The extendable side brush also helps sweep hair accumulated in corners.
The QV 35A is more basic in intelligent functions, but maintains runtime and mopping system with multifunction base. For small or medium homes without thick carpets or need for advanced detection, it performs perfectly. The price saving may compensate for the absence of hot water or dirt detection if these are not priorities.
The compact base of the Edge S5A and the QV 35A facilitates integration into reduced spaces, whilst the Curv S5X needs a more spacious corner. It is advisable to measure before deciding.
Conclusion: Which to Choose?
Choose the Roborock Qrevo Curv S5X if you seek maximum suction power and do not mind sacrificing space for the base. Tray self-cleaning 2.0 reduces maintenance and hot water washing improves results on greasy floors. Ideal for large homes with carpets and pets where power makes a real difference.
Choose the Roborock Qrevo Edge S5A if you want the same high-end features as the Curv S5X but need a more compact base. The extra 500 ml in the dirty water tank and the additional 200 ml in the dust bag slightly extend emptying intervals. Perfect for homes that value space and performance in equal measure.
Choose the Roborock QV 35A if you prioritise value for money and do not need intelligent dirt detection or hot water. The 8,000 Pa power works well on hard floors and thin carpets, runtime is identical to the superior models and the compact base facilitates installation. A good option for medium homes without thick carpets or advanced automation requirements.
