Introduction
We're looking at three premium range robots launched in 2025 that represent the latest in home cleaning technology. The Roborock Saros 10R and the Roborock Saros Z70 belong to the same family, whilst the Dreame X50 Ultra Blanca is Dreame's response to these high-end models. All three integrate multifunctional bases that wash and dry the mops with hot air, advanced navigation systems with dual cameras and artificial intelligence, and mopping capabilities with extendable mops.
These units are designed for users seeking total automation in home cleaning, with medium or large homes where autonomy and warm water mopping make notable differences. The 6,400 mAh battery capacity in all three models guarantees extended cleaning sessions, although specific features vary depending on the model.
Power and Suction
Suction power is one of the aspects where these models differ most. The Roborock Saros Z70 reaches 22,000 Pa, positioning itself as the most powerful of the three. The Dreame X50 Ultra Blanca offers 20,000 Pa, a more than notable performance for carpets and floors with ingrained dirt. The Saros 10R remains at 18,500 Pa, sufficient for most homes but somewhat below its direct competitors.
Regarding the brushing system, the Saros 10R mounts the DuoDivide Antienredos brush, specifically designed to prevent hair from wrapping around the main brush. The Saros Z70 and the X50 Ultra incorporate dual anti-tangle brush systems, a configuration that also minimises tangles but with a different technical approach. All three models raise the main brush during mopping and feature an extendable and raisable side brush, which improves cleaning in corners and avoids dragging dirt when only mopping.
The anti-tangle side brush is present in all three units, an important detail for homes with pets or people with long hair.
Mopping
All three robots use a system of two rotating mops with edge extension. The Dreame X50 Ultra adds Roboswing movement, which allows the robot to make a lateral movement to get the mop under furniture and overhangs, something the Roborock models don't include.
Mop lifting marks a technical difference: the Roborock Saros 10R and Z70 raise the mops between 12 and 22 mm, whilst the Dreame X50 Ultra remains at 10.5 mm. This greater elevation proves useful on thick carpets or when you want to vacuum without dragging wet mops.
Here appears an important distinction in this robot vacuum comparison: both the Saros 10R and the Saros Z70 mop with warm water, which improves the dissolution of grease and adhered dirt. The Dreame X50 Ultra uses cold water, less effective against difficult stains. All three models detect dirt on the mops and on the floor, adjusting the mopping as necessary, and can automatically remove the mops at the base when only vacuuming is needed.
Navigation System
The Roborock Saros 10R and the Saros Z70 integrate the StarSight 2.0 system, which combines dual camera with frontal 3D laser sensor. Both recognise up to 108 different types of obstacles. The Dreame X50 Ultra Blanca uses a retractable LiDAR together with dual camera and 3D sensor, but stands out by recognising up to 200 obstacles, almost double the Roborock models.
In practice, this translates into more precise navigation by the Dreame when faced with less common objects. All three units recognise pets and have remote camera access with night vision LED, allowing home monitoring from the app. However, only the X50 Ultra detects curtains, avoiding getting tangled with them during cleaning.
The processor and algorithm also differ: the Saros 10R uses RR Mason 11.0, the Saros Z70 incorporates RR Mason 12.0 (Roborock's most recent version), and the Dreame mounts AI Sage 13.0, its most advanced artificial intelligence system. All three include intelligent AI cleaning and stain recognition.
Autonomy and Battery
All three robots mount 6,400 mAh batteries, a generous capacity for extensive cleaning sessions. The Roborock Saros 10R and the Dreame X50 Ultra Blanca offer 180 minutes of autonomy, sufficient for large homes without the need for intermediate recharges. The Saros Z70 doesn't specify autonomy in minutes, although with the same battery similar performance is expected.
This autonomy allows cleaning large surfaces in a single pass, especially useful when combining vacuuming and mopping.
Smart Functions
All three models overcome simple steps, facilitating passage between rooms with small level changes or thick carpets. Here appears the most striking difference in this comparison between Roborock and Dreame robot vacuums: the Saros Z70 incorporates an OmniGrip robotic arm, absent in the Saros 10R and in the X50 Ultra. This arm allows the robot to manipulate small objects, pick up socks or other items from the floor before cleaning.
All three units integrate their own voice assistant and are compatible with Alexa and Google Home, allowing complete voice control.
Multifunctional Cleaning Base
All three bases perform auto-emptying of the dust container, mop washing with hot water and drying with hot air. Washing with hot water improves mop hygiene, whilst hot air drying speeds up the process and prevents bad odours.
Self-cleaning of the washing tray is present in all three models, although with different generations: the Roborock models use version 2.0, whilst the Dreame incorporates the third generation of this system. Only the X50 Ultra adds UV disinfection, eliminating bacteria in the base after each cleaning cycle.
Regarding capacities, the Dreame X50 Ultra offers an advantage: 3.2 litre dust bag compared to the 2.5 litres of the Roborock models, 4.5 litre clean water tank compared to 4 litres, and 4 litre dirty water tank compared to 3 litres. This reduces maintenance frequency in large homes or with intensive use.
All three have a detergent tank to improve mopping. The Dreame includes a plumbing connection kit that is purchased separately, something the Roborock models don't offer even as an accessory.
Dimensions
The diameter is practically identical: 353 mm in the Roborock Saros 10R and Z70, and 350 mm in the Dreame X50 Ultra. Height marks significant differences: the Roborock models measure 79.8 mm, whilst the Dreame reaches 89 mm. Those almost 10 additional millimetres can prevent the X50 Ultra from passing under some low furniture where the Roborock models do access.
The bases also differ in dimensions. The Roborock Saros 10R and Z70 share measurements: 381 mm wide, 488 mm high and 475 mm deep. The Dreame X50 Ultra is more compact in width (340 mm) and depth (456.7 mm), but taller (590.5 mm), which should be considered depending on available space.
Real-World Usage Experience
For large homes, all three models offer sufficient autonomy thanks to their 6,400 mAh batteries. The Dreame X50 Ultra requires less maintenance due to its larger tanks in the base, especially the 3.2 litre dust bag. In homes with pets, the anti-tangle systems of all three robots work well, although the greater power of the Saros Z70 (22,000 Pa) can make a difference on carpets with ingrained pet hair.
Warm water mopping by the Roborock Saros 10R and Z70 proves more effective against grease and dried stains than the Dreame's cold water. However, the X50 Ultra's Roboswing movement allows better reach under furniture during mopping. The Dreame's UV disinfection provides an extra hygiene benefit for homes with small children or allergy sufferers.
The lower height of the Roborock models (79.8 mm) facilitates cleaning under beds and sofas where the Dreame (89 mm) may not fit. The Saros Z70's robotic arm adds convenience by picking up small objects before cleaning, reducing prior preparation.
Conclusion: Which to Choose?
Choose the Roborock Saros 10R if you're looking for a Roborock robot vacuum with warm water mopping at a more competitive price than the Z70, you prioritise passing under low furniture thanks to its 79.8 mm height, and you don't need the robotic arm. Suitable for medium and large homes where warm water mopping makes a difference against adhered dirt.
Choose the Roborock Saros Z70 if you want the maximum suction power (22,000 Pa) in this robot vacuum comparison, you value the OmniGrip robotic arm to automatically pick up objects from the floor, and you're looking for Roborock's most advanced algorithm (RR Mason 12.0). Ideal for homes with small children where toys or objects are often left on the floor, and for users who prioritise the brand's latest technology.
Choose the Dreame X50 Ultra Blanca if you need the greatest tank capacity in the base to reduce maintenance, you value recognition of up to 200 obstacles and curtain detection, and you're looking for UV disinfection in the base. The Roboswing movement proves useful in homes with lots of low furniture. A good option for large houses with intensive use where the larger tank size compensates for the absence of warm water in mopping, although you must ensure that its 89 mm height allows passage under your furniture.
