Introduction
Roborock launched three models in 2026 that represent different approaches within its Qrevo range. The Qrevo Curv 2 Flow arrived in February, the Qrevo S Pro in April and the Qrevo Edge 2 in May. All three share the brand's philosophy: complete robots with a multifunctional base that washes and dries the mops, but each is designed for different needs.
The Curv 2 Flow opts for a mopping system with a 270 mm rotating roller, whilst the Edge 2 and S Pro use dual spinning mops. Suction power varies considerably: from 18,500 Pa on the S Pro to 25,000 Pa on the Edge 2. Height also marks important differences, especially on the Edge 2, which at just 79.8 mm can slip under furniture where other models cannot reach.
Power and Suction
The Edge 2 leads in raw power with 25,000 Pa, a figure that places it at the pinnacle of what Roborock offers. The Curv 2 Flow stays at 20,000 Pa, whilst the S Pro reaches 18,500 Pa. In practice, these differences are particularly noticeable on thick carpets or when there is accumulated ingrained dirt.
All three models feature a 5,200 mAh battery, but actual battery life varies quite a bit. The Curv 2 Flow delivers 242 minutes, giving it scope for large homes without needing intermediate recharges. The Edge 2 drops to 188 minutes and the S Pro to 180 minutes, sufficient for most households but with less margin.
The DuoDivide anti-tangle main brush equips both the Curv 2 Flow and the Edge 2. This system pushes hairs towards the central gap to prevent tangling, something useful in homes with pets. The S Pro has a simple brush, less advanced in this respect. Additionally, the main brush lifts during mopping on the Curv 2 Flow and Edge 2, but not on the S Pro.
As for the side brush, the Curv 2 Flow has lifting to avoid dragging wet dirt during mopping, whilst the Edge 2 opts for an extendable side brush that improves corner cleaning. The S Pro does not include either of these two functions. All three models feature an anti-tangle side brush, although the Curv 2 Flow stands out for mounting a dual side brush.
Mopping
Here the differences are profound. The Curv 2 Flow uses a 270 mm rotating roller that mops continuously, similar to a traditional mop but motorised. The Edge 2 and S Pro employ dual spinning mops, a more compact but equally effective system.
Mop extension to better reach edges is present on the Curv 2 Flow and Edge 2, but not on the S Pro. Mop lifting also varies: 15 mm on the Curv 2 Flow (with additional separation system), 12 mm on the Edge 2 and 10 mm on the S Pro. This influences how they behave when passing over carpets or areas that should not get wet.
The Edge 2 incorporates warm water mopping, an advantage for better dissolving grease and adhered dirt. The other two models mop with cold water. Furthermore, only the Edge 2 can automatically remove the mops at the base when a vacuum-only session is scheduled, avoiding dragging them unnecessarily.
Dirt detection on mops and floor works on the Curv 2 Flow and Edge 2, allowing the robot to re-mop dirtier areas. The S Pro lacks this function, which limits its ability to adapt mopping to the actual dirt on the floor.
Navigation System
The Curv 2 Flow mounts a LiDAR turret, whilst the Edge 2 uses retractable LiDAR, which partly explains its lower height. The S Pro also has a LiDAR turret. All three navigate with precision, but the Curv 2 Flow and Edge 2 add an AI camera and front 3D laser sensor, absent on the S Pro.
The Edge 2 recognises up to 280 different obstacles, compared to 200 on the Curv 2 Flow. The S Pro does not specify this figure. Both premium models detect pets, have remote camera access and LED for night vision. The Edge 2 adds curtain detection, useful for avoiding tangles.
AI stain recognition is only available on the Curv 2 Flow and Edge 2, which can identify particularly dirty areas and adjust cleaning. The S Pro goes without this capability, although it does have the SmartPlan intelligent cleaning system that all three share.
Battery Life and Battery
With 242 minutes of battery life, the Curv 2 Flow handles long sessions without interruptions. The Edge 2 and S Pro are around 180-188 minutes, sufficient for homes of up to 150-180 square metres in mixed vacuum and mop mode.
Battery capacity is identical on all three models: 5,200 mAh. The differences in battery life are due to the consumption generated by each mopping system, the suction power used and the type of navigation. The Curv 2 Flow's roller seems to optimise energy consumption better.
Smart Features
All three models overcome obstacles of up to 20 mm, allowing them to navigate thick carpets, cables or small level changes without getting stuck. This capability is especially useful in homes with different types of flooring.
The Curv 2 Flow and Edge 2 incorporate their own voice assistant, a function that allows direct interaction with the robot without going through the app. The S Pro only supports external assistants such as Alexa or Google Home, which are also available on the other two models.
Multifunctional Cleaning Base
All three multifunctional bases empty the dust bin, wash the mops with hot water and dry them with hot air. The dust bag capacity is 2.7 litres in all cases, and the clean and dirty water tanks hold 4 and 3.5 litres respectively.
Self-cleaning of the washing tray is present on the Curv 2 Flow and Edge 2, although the latter mounts version 2.0, more advanced. The S Pro does not have this function, which means more manual maintenance. None of the three models include UV disinfection or an integrated detergent tank.
Dimensions
The Edge 2 is the lowest at 79.8 mm in height, allowing it to access under beds, sofas and low furniture where the other two cannot enter. The S Pro measures 96.5 mm and the Curv 2 Flow reaches 119 mm, the highest due to its roller system.
The diameter barely varies: 353 mm on the Curv 2 Flow and S Pro, 352 mm on the Edge 2. As for the bases, the Curv 2 Flow's is wider and more square (450 x 450 x 450 mm), whilst those of the Edge 2 and S Pro are more compact (340 mm wide, 521 and 519 mm high respectively).
For homes with limited space, the Edge 2 or S Pro base takes up less surface area. If there is low furniture, the Edge 2 has a clear advantage due to its reduced profile.
Real-World Experience
In large homes, the Curv 2 Flow offers the greatest battery life and a continuous mopping system that covers large surfaces well. The Edge 2 compensates with more suction power and better access under furniture. The S Pro is more basic but performs well in medium-sized homes without pets or advanced navigation needs.
For households with pets, the DuoDivide brush on the Curv 2 Flow and Edge 2 makes a difference. The S Pro may have more problems with long hair. Pet detection and stain recognition also favour the two premium models.
If there are carpets, the Edge 2's power and the Curv 2 Flow's mop lifting are aspects to consider. The S Pro holds its own on hard floors but has less margin on thick carpets. The Edge 2's warm water mopping capability can be particularly noticeable in kitchens with accumulated grease.
Conclusion: Which One to Choose?
Choose the Roborock Qrevo Curv 2 Flow if you're looking for the greatest possible battery life and prefer a continuous roller mopping system. It's ideal for large homes, with pets and where there are no height restrictions under furniture. The dual side brushes and 15 mm mop lifting make it a very complete model.
Choose the Roborock Qrevo Edge 2 if you need the best robot vacuum in the comparison in terms of power, navigation technology and ability to get under furniture. Warm water mopping, automatic mop removal and tray self-cleaning 2.0 position it as the most advanced option. Perfect for those seeking total automation and who have pets or children at home.
Choose the Roborock Qrevo S Pro if you want a functional Roborock option without paying for advanced technologies you may not need. It's suitable for medium-sized homes, without long-haired pets and where stain detection or remote camera access is not essential. Its features-to-price ratio is reasonable if you don't demand the latest in AI navigation.
