Introduction
The Dreame X50s Ultra and the Roborock Qrevo Edge 2 represent the most advanced range of robot vacuum cleaners with multifunction base launched in 2026. Both units are designed for users seeking total autonomy in home cleaning, with the ability to vacuum and mop with minimal manual intervention.
We're talking about two proposals that share the same philosophy: bases that wash and dry the mops with hot water, intelligent navigation systems with camera and suction power that far exceeds market standards. The difference lies in the technical details and in how each manufacturer has addressed specific aspects of mopping, autonomy or base maintenance.
Power and Suction
The most obvious difference between these models is in suction power. The Dreame robot vacuum cleaner reaches 35,000 Pa, a figure that exceeds the Roborock Qrevo Edge 2 by 10,000 Pa. In practice, this translates to greater capacity to extract ingrained dirt from carpets or tile joints, especially useful in homes with pets or high traffic.
The brushing system also shows differences. The Dreame features dual HyperStream brush, designed to prevent hair tangles using two brushes anchored at one end. The Roborock opts for the DuoDivide anti-tangle system, which pushes hairs towards the central gap for direct suction. Both main brushes can be raised during mopping so as not to interfere with the mops.
As for the side brush, both models have it extendable and anti-tangle. But only the Dreame X50s Ultra can raise it during mopping, which helps the mop reach edges better without the brush interfering or dispersing dirty water.
Mopping
Both robots mop with two rotating mops and feature edge extension, although the Dreame adds the Roboswing system that allows lateral movement of the robot to get the mop under furniture overhangs. Both options automatically remove the mops at the base when only vacuuming is needed.
Mop lift is slightly higher on the Roborock Qrevo Edge 2: 12 mm compared to 10.5 mm on the Dreame. Those extra millimetres can make the difference on medium-pile carpets or thick doormats, although both figures are sufficient for most domestic carpets.
Where the Dreame takes the lead is in mopping water temperature. It uses hot water at 45°C to mop the floor, whilst the Roborock uses warm water without specifying exact temperature. Hotter water dissolves grease better and improves results in kitchens or high-use areas.
Both units wash the mops with hot water and dry them with hot air, as well as incorporating dirt detection both on the mops and on the floor to reinforce cleaning where necessary. The Dreame features third-generation tray self-cleaning system, compared to the Roborock's 2.0 system.
Navigation System
Both the Roborock robot vacuum cleaner and the Dreame use retractable LIDAR to map the home, combined with AI camera, front 3D laser sensor and LED for night vision. Both recognise up to 280 types of obstacles, identify pets, detect curtains and allow remote access to the camera from the app.
The difference lies in the camera configuration: the Dreame incorporates dual RGB camera, which in theory improves depth perception and object recognition in low-light conditions. The Roborock has a single AI camera.
In terms of artificial intelligence, the Dreame integrates CleanGenius and the Roborock SmartPlan 3.0, systems that automatically adjust power and mopping according to floor type and detected dirt level. Both recognise stains and adapt cleaning accordingly.
Autonomy and Battery
The Dreame X50s Ultra has a 6,400 mAh battery, higher than the Roborock's 5,200 mAh. However, we only have autonomy data for the Roborock Qrevo Edge 2: 188 minutes of continuous operation. The Dreame's greater capacity should translate into extended autonomy, although the higher suction power also consumes more energy.
For homes over 150 square metres, this difference is worth considering. The Dreame robot could complete more demanding cleans without needing an intermediate recharge, especially in maximum power mode.
Smart Features
The Roborock Qrevo Edge 2 can overcome obstacles up to 20 mm in height, a clearly specified capability that facilitates passage between rooms with different floor levels or small steps. The Dreame X50s Ultra only mentions capability for simple steps without specifying maximum height, which suggests less versatility in this aspect.
Both models incorporate their own voice assistant in addition to compatibility with Alexa and Google Home, allowing voice command control without depending on third parties.
Multifunction Cleaning Base
The bases of both robots include auto-emptying, hot water washing and hot air drying of the mops. But the Dreame X50s Ultra adds a detergent tank, absent in the Roborock. This allows the base to dispense cleaning product automatically during mop washing, improving hygiene without manual intervention.
The Dreame's dust bag has a capacity of 3.2 litres compared to 2.7 litres for the Roborock. In homes with pets or intensive daily cleaning, this translates to fewer bag changes per year. The clean water tank is practically identical: 4.2 litres in the Dreame and 4 litres in the Roborock. The dirty water tank is 3 litres in the Dreame and 3.5 litres in the Roborock.
The Dreame offers an optional plumbing connection kit that is purchased separately, allowing direct connection to water supply and drainage. The Roborock does not have this option even as an accessory.
Dimensions
The robots are practically the same size: 352 mm in diameter and almost identical height. The Dreame measures 79.5 mm tall and the Roborock 79.8 mm, imperceptible differences that don't affect the ability to pass under furniture.
The bases do show variations. The Dreame's is wider (390 mm compared to 340 mm) and less deep (423 mm compared to 487 mm), whilst the Roborock's is taller (521 mm compared to 499 mm). Depending on available space, one configuration may fit better than the other: the Dreame needs more width but less depth, the Roborock vice versa.
Real-World User Experience
For large homes, the Dreame X50s Ultra offers greater potential autonomy thanks to its 6,400 mAh battery and a larger dust bag. The 35,000 Pa power is especially useful in houses with carpets or with pets that shed a lot of hair, where the dual HyperStream brush reduces maintenance by minimising tangles.
The Roborock Qrevo Edge 2 stands out for its ability to overcome obstacles up to 20 mm, ideal for homes with level differences between rooms or low steps. The 12 mm mop lift also favours passage over thick carpets without wetting them.
In terms of mopping, the Dreame's hot water at 45°C offers better results on greasy or heavily trafficked floors, especially in kitchens. The integrated detergent tank reduces maintenance by automating cleaning product dosing. The Roborock, without this tank, requires manually adding detergent to the water if you wish to use it.
The Dreame's dual RGB camera can translate into better recognition of small obstacles or in dark areas, although both models offer precise navigation and intelligent object avoidance.
Conclusion: Which to Choose?
Choose the Dreame X50s Ultra if: you're looking for the maximum suction power available, you have pets that shed a lot of hair, you need extended autonomy for large homes, you value mopping with hot water at controlled temperature or you want a completely autonomous system with detergent tank and future option of plumbing connection. Also if you prefer a wider but less deep base for the available space.
Choose the Roborock Qrevo Edge 2 if: your home has level differences or steps that the robot must overcome frequently, you need maximum mop lift for thick carpets, you prefer a more compact base in width even though it takes up more depth, or you trust in Roborock's established track record and reliability in the market. The balance between suction power, documented autonomy and ability to overcome obstacles makes this model a very well-rounded option for most homes.
