Introduction
Choosing between the Dreame L50s Pro Ultra, the Roborock Saros 10R and the Dreame X50 Ultra Blanca involves comparing three high-end propositions with different technical approaches. The first, launched in 2026, opts for record suction power of 30,000 Pa and a highly advanced object recognition system. The Roborock Saros 10R, introduced in 2025, stands out for its higher capacity battery and wider mop lift. The third option, the Dreame X50 Ultra Blanca, also from 2025, incorporates UV disinfection in the base and a more recent artificial intelligence processor.
All three robots are designed for medium and large homes seeking total automation in vacuuming and mopping. The choice will depend on specific priorities: raw power, extended autonomy or specific functions such as ultraviolet disinfection.
Power and Suction
The most striking difference appears in suction power. The Dreame L50s Pro Ultra develops 30,000 Pa, a figure that far exceeds the 18,500 Pa of the Roborock Saros 10R and the 20,000 Pa of the Dreame X50 Ultra Blanca. In practice, this advantage proves decisive on high-pile carpets or in homes with pets that shed a lot of hair.
The brushing system also shows important variations. The Roborock Saros 10R incorporates the DuoDivide Antienredos brush, designed to push hairs towards the central suction gap and reduce tangles. The two Dreame models mount a double HyperStream brush, with two rollers anchored at one end that minimise hair accumulation. Both solutions are effective, although Roborock's approach proves especially useful in homes with several animals.
All three robots lift the main brush during mopping to prevent it from getting wet, and also lift the side brush. Additionally, they feature an extendable side brush to sweep corners better. The difference lies in raw power and the design of the central brush, not in the versatility of the systems.
Mopping
All three units mop with two rotating mops and have mop extension to reach edges better. The Dreame L50s Pro Ultra and X50 Ultra Blanca models add the Roboswing system, a swinging movement that allows the mop to slightly reach under furniture or ledges. The Roborock Saros 10R does not include this function, but compensates with superior mop lift.
Mop lift marks a relevant technical difference. The Roborock Saros 10R reaches between 12 and 22 mm, which allows it to travel over thick carpets without wetting them. The two Dreame models stay at 10.5 mm, sufficient for thin carpets but more limited on long-pile carpets.
The Roborock Saros 10R mops the floor with warm water, whilst the two Dreame models use cold water. The difference can be especially noticeable on greasy or stuck-on stains, where warm water facilitates dissolution. All three wash the mops with hot water in the base and dry them with hot air, which guarantees hygiene and prevents bad odours.
All three models automatically remove the mops in the base when they only need to vacuum, and detect dirt both on the mops and on the floor for automatic re-mopping. This intelligent detection improves mopping efficiency without manual intervention.
Navigation System
The Dreame L50s Pro Ultra mounts a retractable LiDAR turret and recognises 220 different obstacles. The Roborock Saros 10R uses the StarSight 2.0 system and identifies 108 objects. The Dreame X50 Ultra Blanca, with its AI Sage 13.0 processor, recognises 200 obstacles. In practice, a higher number of recognised objects translates into fewer manual interventions and greater precision in complex environments.
All three robots integrate dual AI camera, front 3D laser sensor and LED for night vision. All allow remote access to the camera from the app, a useful function for basic home surveillance. The difference lies in recognition capability: the two Dreame models detect curtains and adjust the side brush behaviour to avoid tangling, whilst the Roborock Saros 10R does not include this specific function.
The Roborock Saros 10R processor is the RR Mason 11.0, with its SmartPlan system for intelligent route planning. The Dreame models use CleanGenius in the L50s Pro Ultra and AI Sage 13.0 in the X50 Ultra Blanca. These algorithms optimise the route according to floor type, room layout and detected dirt level.
Autonomy and Battery
The Roborock Saros 10R and the Dreame X50 Ultra Blanca share a 6,400 mAh battery and 180 minutes of autonomy. The Dreame L50s Pro Ultra has 5,200 mAh and does not specify autonomy in minutes, although the lower capacity suggests tighter times. For homes over 200 square metres, the 6,400 mAh battery offers greater margin and reduces the need for intermediate recharges.
The 1,200 mAh difference may seem minor, but in intensive mopping sessions, where the robot returns several times to the base to wash the mops, that extra capacity allows more extensive cleaning to be completed without interruptions.
Smart Functions
All three robots overcome simple steps, a standard capability in the high-end range that facilitates transit between rooms with small level differences. None incorporates a robotic arm, a function that for now is reserved for experimental or higher-end models.
All three include their own voice assistant, in addition to compatibility with Alexa and Google Home. This integration allows the robot to be controlled via voice commands and cleaning to be scheduled without opening the app.
Multifunction Cleaning Base
All three bases perform auto-emptying of the dust container, mop washing with hot water, drying with hot air and self-cleaning of the washing tray. The Dreame L50s Pro Ultra and X50 Ultra Blanca models use third-generation self-cleaning, whilst the Roborock Saros 10R mounts version 2.0. The third generation improves the efficiency of scraping and rinsing the tray, reducing the need for manual cleaning.
The Dreame X50 Ultra Blanca adds UV disinfection in the base, a function that eliminates bacteria on the mops and in the washing tray. This may prove relevant in homes with young children or people with allergies.
The dust bag capacity is 3.2 litres in the two Dreame models, compared to 2.5 litres in the Roborock Saros 10R. The clean water tanks are 4.5 litres in the Dreame models and 4 litres in the Roborock; the dirty water tanks, 4 litres in the Dreame models and 3 litres in the Roborock. These differences mean fewer emptyings and fillings in the Dreame models, especially in large homes.
The two Dreame models offer a plumbing connection kit, which is purchased separately. The Roborock Saros 10R does not include this option. Plumbing connection eliminates the need to fill and empty tanks manually, although it requires installation and is not integrated from the factory.
Dimensions
The Roborock Saros 10R measures 79.8 mm in height, which allows it to slip under low furniture where the other two cannot reach. The Dreame X50 Ultra Blanca is 89 mm and the Dreame L50s Pro Ultra, 103.8 mm. This difference of more than two centimetres can be decisive under sofas, beds or furniture with little clearance from the floor.
The diameter is similar in all three: 350 mm in the Dreame models and 353 mm in the Roborock. The Roborock Saros 10R base is wider (381 mm) but less tall (488 mm), whilst the Dreame bases measure 340 mm wide and exceed 590 mm in height. It is advisable to measure the available space before installing the base, especially if it is placed under worktops or in cupboards.
Real-World User Experience
The Dreame L50s Pro Ultra fits homes with thick carpets and pets that shed a lot of hair, thanks to its 30,000 Pa of suction and its ability to recognise 220 obstacles. The Roboswing system improves mopping in kitchens with low furniture or protruding skirting boards. The 3.2-litre dust bag and the higher capacity water tanks reduce maintenance in large homes.
The Roborock Saros 10R proves ideal for homes with long-pile carpets, where its mop lift of up to 22 mm prevents them from getting wet. Its height of 79.8 mm allows it to clean under furniture where other robots cannot access. Warm water for mopping improves the cleaning of greasy stains in kitchens. The 6,400 mAh battery and 180 minutes of autonomy guarantee coverage in large areas.
The Dreame X50 Ultra Blanca combines intermediate power of 20,000 Pa with advanced functions such as UV disinfection and the AI Sage 13.0 processor. Its height of 89 mm offers a balance between access under furniture and tank capacity. Curtain detection and the Roboswing system improve the experience in homes with complex décor. The 3.2-litre dust and 4.5-litre clean water tanks reduce manual interventions.
Conclusion: Which One to Choose?
Choose the Dreame L50s Pro Ultra if you need the maximum available suction power and your home has thick carpets or several pets. Its ability to recognise 220 obstacles minimises manual interventions in complex environments. The higher capacity tanks and the Roboswing system improve autonomy and mopping in kitchens with low furniture. Bear in mind that its height of 103.8 mm limits access under low furniture.
Choose the Roborock Saros 10R if your priority is accessing under low furniture, thanks to its 79.8 mm height. Its mop lift of up to 22 mm protects long-pile carpets during mopping. Warm water for mopping improves the cleaning of stuck-on stains. The 6,400 mAh battery and 180 minutes of autonomy guarantee coverage in large homes. It is a solid option if you value Roborock's reliability and do not need maximum suction power.
Choose the Dreame X50 Ultra Blanca if you seek a balance between power, advanced functions and reduced maintenance. UV disinfection in the base adds hygiene in homes with children or people with allergies. Its AI Sage 13.0 processor and the ability to recognise 200 obstacles offer precise navigation. The higher capacity tanks and the Roboswing system improve autonomy and edge mopping. Its height of 89 mm allows access under more furniture than the L50s Pro Ultra, although less than the Roborock Saros 10R.
