Introduction
The Dreame X50s Ultra and the Roborock Qrevo Curv 2 Pro represent two high-end propositions in the robot vacuum market with multifunction base stations. The Dreame model will arrive in May 2026 with notable innovations, whilst the Roborock unit was launched in 2025. Both are designed for users seeking to fully automate home cleaning without manual intervention, incorporating advanced mopping systems and bases that wash and dry the mops automatically.
We're talking about robots designed for medium and large homes, with multiple rooms and different types of flooring. The high suction power and navigation systems with artificial intelligence make them especially useful in homes with pets, carpets and the need to maintain spotless floors effortlessly.
Power and Suction
The difference in suction power is significant. The Dreame X50s Ultra offers 35,000 Pa, a figure that exceeds the Roborock Qrevo Curv 2 Pro by 10,000 Pa. In practice, this translates to better capacity for extracting embedded dirt from carpets and for vacuuming heavier particles or those adhered to textile fibres.
The main brush system also marks differences. The Dreame incorporates a dual HyperStream brush designed specifically to prevent hair tangles, whilst the Roborock opts for its DuoDivide system that pushes hairs towards the central gap to facilitate suction. Both approaches seek to reduce maintenance, albeit with different philosophies.
Both models raise the main brush during mopping to prevent it getting wet and maintain effectiveness in each task. However, only the Dreame X50s Ultra also raises the side brush during mopping, which can be useful to avoid splashing or the brush interfering with the mops. Both units feature an extendable side brush to better reach corners and anti-tangle technology in this component.
Mopping
Both robots use a two rotating mop system, but the differences in mopping performance are notable. The Dreame X50s Ultra mops with hot water at 45°C stored in the robot itself, which improves the dissolution of stains and grease. The Roborock Qrevo Curv 2 Pro mops with cold water, although its base does wash the mops with hot water.
Both extend the mops to better reach edges. The Dreame adds the Roboswing system, which allows the robot to perform a movement that introduces the mop under furniture or overhangs. Mop lifting differs: the Roborock reaches between 7 and 17 mm, whilst the Dreame reaches up to 10.5 mm. This variability of the Roborock model can adapt better to different carpet heights.
Both units automatically remove the mops at the base when you only need to vacuum, and both detect dirt on both the mops and the floor to adjust the cleaning process. The bases wash the mops with hot water and dry them with hot air, guaranteeing hygiene and preventing bad odours.
Navigation System
Both the Dreame X50s Ultra and the Roborock Qrevo Curv 2 Pro employ retractable LIDAR to map the home and plan efficient routes. Both incorporate dual RGB cameras with artificial intelligence and a front 3D laser sensor to identify obstacles with precision.
Object recognition capacity favours the Dreame, which identifies up to 280 different items compared to the Roborock's 200. This can translate to better adaptation to complex environments with many varied objects. Additionally, only the Dreame X50s Ultra detects curtains, which allows it to adjust its behaviour near hanging fabrics to avoid tangles.
Both recognise pets, feature remote camera access for home surveillance and have LEDs for night vision. The intelligent cleaning systems differ in name: CleanGenius on the Dreame and SmartPlan 3.0 on the Roborock, but both use AI to recognise stains and optimise cleaning.
Autonomy and Battery
Both robots feature 6,400 mAh batteries, a generous capacity for the high-end range. The Roborock specifies 290 minutes of autonomy, a figure that allows estimating coverage of large surfaces without the need for intermediate recharging. The Dreame does not provide this autonomy data in the table.
With these capacities, both models are prepared for large homes, being able to complete full cleans of several rooms in a single cycle.
Smart Functions
Both robots overcome simple steps, which facilitates passage between rooms with small level changes or access to thick carpets. Both incorporate their own voice assistant and compatibility with external assistants such as Alexa or Google Home, allowing complete voice control.
Integration with home automation ecosystems is seamless in both cases, facilitating automated routines and remote control from anywhere.
Multifunction Cleaning Base
The bases of both models are complete multifunction units: they auto-empty the dust container, wash the mops with hot water and dry them with hot air. Both incorporate third-generation washing tray self-cleaning, reducing manual maintenance to a minimum.
The most relevant difference is in the detergent tank: the Dreame X50s Ultra includes it integrated, allowing the base to automatically dispense cleaning product during mop washing. The Roborock Qrevo Curv 2 Pro does not have this function.
Dust bag capacity favours the Dreame with 3.2 litres compared to the Roborock's 2.5, which means fewer bag changes over time. As for water tanks, the Dreame has 4.2 litres of clean water and 3 of dirty, whilst the Roborock has 4 and 3 litres respectively. Minimal differences that in practice are barely noticeable.
The Dreame offers an optional plumbing connection kit that is purchased separately, allowing automation of water filling and emptying. It's an extra that may interest those seeking maximum autonomy, although it requires additional investment.
Dimensions
The robots are practically the same size: 352 mm in diameter and almost identical height (79.5 mm for the Dreame compared to 79.8 mm for the Roborock). This minimal difference doesn't affect the ability to slip under furniture.
The bases, however, differ quite a bit. The Dreame's measures 390 mm wide, 499 mm high and 423 mm deep. The Roborock's is more compact in height but wider: 450 x 450 x 450 mm. It's worth measuring the available space before deciding, especially if you're planning to place the base in a tight spot.
Real-World User Experience
For homes with pets, the Dreame X50s Ultra offers clear advantages: greater suction power for embedded hair and the dual HyperStream brush specifically designed to prevent tangles. The hot water mopping from the robot itself also helps eliminate organic stains more easily.
In homes with thick carpets, the Dreame's superior power makes a difference. The Roborock's ability to raise the mops up to 17 mm can be more versatile if you have carpets of different heights.
For those seeking maximum autonomy and minimum maintenance, the Dreame stands out with its larger dust bag, integrated detergent tank and the plumbing connection option. The Roborock, with its specified autonomy of 290 minutes, guarantees covering large spaces without interruptions.
The difference in base dimensions can be decisive depending on where you plan to place it. The Dreame's is taller and narrower; the Roborock's, more square and compact in height.
Conclusion: Which to Choose?
Choose the Dreame X50s Ultra if: You're looking for the maximum suction power available, you have pets with abundant hair, you value mopping with hot water from the robot, you want an integrated detergent tank in the base and you prefer a larger dust bag to reduce changes. Also if you're interested in the plumbing connection option and need curtain recognition. It's ideal for large houses with carpets and multiple types of flooring.
Choose the Roborock Qrevo Curv 2 Pro if: You prefer an established brand with proven reputation, you're looking for a more compact base in height that fits better in reduced spaces, you value variable mop lifting up to 17 mm for carpets of different thicknesses and cold water for mopping is sufficient (although the base washes with hot water). It's a solid option for those who prioritise reliability and a clearly specified autonomy of 290 minutes.
