Introduction
The Dreame L50 Pro Ultra, the Roborock Saros 10R and the Xiaomi X20 Max represent three distinct approaches within the world of robot vacuum cleaners with multifunctional base. The first two arrived on the market in 2025, whilst the Xiaomi model is from 2024. The Dreame robot vacuum cleaner and the Roborock robot vacuum cleaner compete directly in the high-end range, with suction powers exceeding 18,000 Pa, whilst the Xiaomi robot vacuum cleaner is positioned in a more accessible segment with 8,000 Pa.
These are robots designed for users seeking total autonomy in cleaning. All three feature a multifunctional base that washes and dries the mops, as well as auto-emptying the dust container. The Dreame L50 Pro Ultra and the Roborock Saros 10R also incorporate dual camera with artificial intelligence, whilst the Xiaomi X20 Max does without this technology.
Power and Suction
The difference in suction power marks clear territories. The Dreame L50 Pro Ultra reaches 19,500 Pa, closely followed by the Roborock Saros 10R with 18,500 Pa. The Xiaomi X20 Max remains at 8,000 Pa, a figure that places it in another performance category. In practice, this translates into greater capacity to extract ingrained dirt from carpets or tile joints.
The brushing system also shows notable differences. The Dreame L50 Pro Ultra features a dual HyperStream brush, specifically designed to reduce hair tangles. The Roborock Saros 10R is equipped with the DuoDivide anti-tangle system, which pushes hairs towards the centre to facilitate suction. The Xiaomi X20 Max uses the TriCut 3.0 brush, which combines bristles with blades to cut tangled hairs.
Both the Dreame L50 Pro Ultra and the Roborock Saros 10R raise the main brush during mopping, a function that the Xiaomi X20 Max does not incorporate. The two high-end models also include an extendable, liftable and anti-tangle side brush, features absent in the Xiaomi model. This improves sweeping in corners and prevents dragging dirt during mopping.
Mopping
All three robots use a two rotating mop system, but the differences in advanced functions are significant. The Dreame L50 Pro Ultra incorporates mop extension with Roboswing movement, which allows the mop to slightly reach under furniture and ledges. The Roborock Saros 10R also extends the mops, although without the characteristic swinging movement of the Dreame system. The Xiaomi X20 Max includes mop extension but without additional functions.
Mop lifting varies between the three models. The Roborock Saros 10R leads with 12-22 mm of lift, followed by the Dreame L50 Pro Ultra with 10.5 mm and the Xiaomi X20 Max with 10 mm. This difference is especially useful when passing over short-pile carpets.
A notable advantage of the Roborock Saros 10R is mopping with warm water, whilst the Dreame L50 Pro Ultra and the Xiaomi X20 Max use cold water. Mop washing at the base is carried out with hot water in all three cases, and all three dry the mops with hot air to prevent bad odours.
The Dreame L50 Pro Ultra and the Roborock Saros 10R automatically remove the mops at the base when only vacuuming is needed, a function that the Xiaomi X20 Max does not offer. The two 2025 models also detect dirt both on the mops and on the floor to go over areas that need it, a capability absent in the Xiaomi model.
Navigation System
The Dreame L50 Pro Ultra integrates the AI Sage 13.0 system with retractable LiDAR and dual AI camera, capable of recognising up to 180 different types of obstacles. The Roborock Saros 10R features the StarSight 2.0 with RR Mason 11.0, also with dual AI camera, recognising 108 types of obstacles. The Xiaomi X20 Max uses a LiDAR turret with front 3D laser sensor but without AI camera.
The absence of a camera in the Xiaomi X20 Max means it does not recognise pets nor allows remote access for surveillance. It also does not identify stains using artificial intelligence. The Dreame L50 Pro Ultra adds specific curtain detection, a function that neither the Roborock Saros 10R nor the Xiaomi X20 Max incorporate.
All three robots include LED for night vision and front 3D laser sensor that improves detection of low obstacles. Remote camera access is available on the Dreame L50 Pro Ultra and the Roborock Saros 10R, allowing you to monitor the house from the app.
Autonomy and Battery
The Dreame L50 Pro Ultra and the Roborock Saros 10R share a 6,400 mAh battery, although with different autonomies: 200 minutes for the Dreame versus 180 minutes for the Roborock. The Xiaomi X20 Max is equipped with a 5,200 mAh battery that offers 120 minutes of autonomy.
This difference is decisive in large homes. The 200 minutes of the Dreame L50 Pro Ultra allow covering large surfaces in a single session, whilst the Xiaomi X20 Max may need intermediate recharges in houses of more than 120 square metres.
Smart Functions
The ability to overcome obstacles shows subtle differences. The Dreame L50 Pro Ultra and the Roborock Saros 10R overcome simple steps without specifying exact height, whilst the Xiaomi X20 Max indicates 20 mm capacity. In practice, this allows overcoming thick carpets or small level differences between rooms.
The Dreame L50 Pro Ultra and the Roborock Saros 10R incorporate their own voice assistant in addition to compatibility with Alexa and Google Home. The Xiaomi X20 Max only supports external assistants.
Multifunctional Cleaning Base
All three bases offer auto-emptying, hot water washing and hot air drying of the mops. Self-cleaning of the washing tray is present in the Dreame L50 Pro Ultra (third generation) and in the Roborock Saros 10R (version 2.0), but not in the Xiaomi X20 Max. This function significantly reduces manual maintenance.
The Dreame L50 Pro Ultra and the Roborock Saros 10R include a detergent tank that is automatically dispensed during mop washing. The Xiaomi X20 Max lacks this function, requiring the use of water only.
Dust bag capacity varies: 3.2 litres in the Dreame L50 Pro Ultra versus 2.5 litres in the other two models. This means emptying it less frequently. Clean water tanks also differ: 4.5 litres in the Dreame, 4 litres in the Roborock and the Xiaomi. The dirty water tank is 4 litres in the Dreame, 3 litres in the Roborock and 3.8 litres in the Xiaomi.
The Dreame L50 Pro Ultra offers an optional plumbing connection kit that is purchased separately, eliminating the need to refill and empty tanks manually. Neither the Roborock Saros 10R nor the Xiaomi X20 Max offer this option.
Dimensions
The robot's height marks important differences for passing under furniture. The Roborock Saros 10R measures 79.8 mm in height, the Dreame L50 Pro Ultra 89 mm and the Xiaomi X20 Max 97 mm. Those 17 mm of difference between the Roborock and the Xiaomi can determine whether the robot accesses under low beds or sofas.
The diameter is practically identical: 353 mm for the Roborock, 350 mm for the Dreame and the Xiaomi. The bases vary more in design: the Dreame L50 Pro Ultra measures 340 mm wide, 590.5 mm high and 456.7 mm deep. The Roborock Saros 10R has 381 mm wide, 488 mm high and 475 mm deep. The Xiaomi X20 Max presents 340 mm wide, 563 mm high and 420 mm deep.
Real-world experience
For homes with pets, the Dreame L50 Pro Ultra and the Roborock Saros 10R offer clear advantages: advanced anti-tangle brushes, greater suction power and pet recognition using AI. The Xiaomi X20 Max may have difficulties with long hairs due to its conventional TriCut brush.
In large homes, the 200-minute autonomy of the Dreame L50 Pro Ultra and its 3.2-litre bag reduce interruptions. The Roborock Saros 10R offers 180 minutes, sufficient for most cases. The Xiaomi X20 Max, with 120 minutes, is better suited to medium-sized flats.
The warm water mopping of the Roborock Saros 10R dissolves grease better in kitchens. The Roboswing system of the Dreame L50 Pro Ultra improves cleaning of edges and skirting boards. The Xiaomi X20 Max offers more basic mopping as it does not automatically remove mops nor detect dirt.
For passing under low furniture, the Roborock Saros 10R is the best option with its 79.8 mm height. The Dreame L50 Pro Ultra can access most spaces with its 89 mm. The Xiaomi X20 Max, at 97 mm, will encounter more limitations.
Conclusion: Which one to choose?
Choose the Dreame L50 Pro Ultra if you seek the maximum suction power on the market (19,500 Pa), need the greatest possible autonomy (200 minutes) and value functions such as curtain detection, the Roboswing system for edges or the possibility of adding plumbing connection. Its 3.2-litre bag and large tanks make it ideal for large homes with pets. The recognition of 180 types of obstacles also makes a difference in homes with many objects.
Choose the Roborock Saros 10R if you prioritise passing under low furniture thanks to its 79.8 mm height, appreciate mopping with warm water for better results on grease and difficult stains, and trust in the experience of the world's leading brand in robot vacuum cleaners. Its 18,500 Pa of power is more than sufficient for any surface, and the DuoDivide anti-tangle system works exceptionally well with pet hair.
Choose the Xiaomi X20 Max if you seek a more economical option within robots with multifunctional base, do not need advanced functions such as pet recognition or dirt detection, and your home does not exceed 100-120 square metres. Its 8,000 Pa is adequate for daily maintenance on hard floors and thin carpets, although it will be limited on thick carpets or homes with long-haired pets. The absence of automatic mop removal requires more manual intervention.
