Introduction
Roborock remains a global benchmark in domestic cleaning robotics, and these two models represent two consecutive generations of their most advanced range. The S8 MaxV Ultra arrived in 2024 as the brand's flagship, whilst the Saros 10R landed in 2025 with substantial technical improvements that reflect the constant evolution of this technology.
Both units are designed for users seeking total automation: they feature a multifunction base that washes and dries the mops, automatic dust emptying and navigation systems with artificial intelligence. The difference lies in the technical details and how these improvements impact the day-to-day life of medium or large homes, especially if there are pets or a need to pass under low furniture.
Power and Suction
The most striking difference in this section is the leap in suction power. The S8 MaxV Ultra offers 10000 Pa, an already notable figure that handles medium-pile carpets and hard floors well. The Saros 10R almost doubles that figure with 18500 Pa, which translates into greater capacity for thick carpets and for extracting embedded dust from tile joints or parquet.
Both models incorporate the DuoDivide Anti-Tangle system as the main brush, designed to push hair and strands towards the central suction gap without tangling in the bristles. This brush lifts automatically when the robot mops, preventing it from getting wet and dragging less dirt through already cleaned areas.
Where the Saros 10R sets itself apart is in the side brush. Whilst the S8 MaxV Ultra features an extendable side brush to better reach corners, the 2025 model adds automatic lifting and an anti-tangle system. This means the side brush doesn't drag hair across the floor when mopping and doesn't tangle with cables or carpet fringes. In homes with long-haired pets, this improvement proves practical and reduces manual maintenance.
Mopping
The S8 MaxV Ultra uses the VibraRise 3.0 vibrating mop, a system that combines vibration with lifting up to 20 mm to avoid wetting carpets. It includes a mini side mop that slightly extends mopping towards the edges. The mops are washed with hot water and dried with hot air at the base, which guarantees hygiene and prevents bad odours.
The Saros 10R switches to two rotating mops with FlexiArm extension, an arm that deploys one of the mops towards the wall edge to mop right up to the skirting board. Mop lifting varies between 12 and 22 mm depending on the detected obstacle. Mop washing reaches 80°C, a higher temperature than the previous model, and drying is carried out at 45°C.
An important difference: the Saros 10R can automatically remove the mops at the base when only vacuuming is needed. The S8 MaxV Ultra doesn't have this function, so if you only want to vacuum without mopping, you must remove the mops manually. For those who frequently alternate between cleaning modes, this represents an advantage in convenience.
Both models detect dirt on the floor and on the mops themselves, adjusting the number of passes or rewashing the mops if necessary. In practice, this improves results in kitchens or high-traffic areas.
Navigation System
Both units feature dual cameras with artificial intelligence, front 3D laser sensor and LED for night vision. Both allow remote access to the camera from the app, useful for occasional home monitoring.
The S8 MaxV Ultra integrates Lidar Turret 3.0 and recognises 73 types of obstacles. The Saros 10R debuts StarSight 2.0, a navigation system that extends recognition to 108 objects. This increase isn't merely numerical: it allows more precise identification of small objects, thin cables, children's toys or items of clothing on the floor. For homes with young children or pets that leave toys scattered about, this improvement reduces manual interventions.
The RR Mason 11.0 algorithm is common to both, as are the SmartPlan functions, although the Saros 10R incorporates version 2.0 of this intelligence, which optimises routes and adjusts cleaning parameters with greater precision according to usage history.
Autonomy and Battery
Battery capacity increases from 5200 mAh in the S8 MaxV Ultra to 6400 mAh in the Saros 10R. Despite this increase, both models declare 180 minutes of autonomy. The explanation lies in the higher consumption derived from the increased suction power and additional systems of the new model.
In homes up to 200 m², either one completes cleaning without intermediate recharges. For larger surfaces, the robot automatically returns to the base, recharges as necessary and continues where it left off. The real difference is that the Saros 10R maintains that autonomy despite working with almost double the power, which speaks to more efficient energy management.
Smart Functions
The Saros 10R can overcome obstacles between 30 and 40 mm in height, compared to the S8 MaxV Ultra's 20 mm. This is especially noticeable in transitions between rooms with raised door profiles, thick carpets or level changes in interior terraces. The 2025 model navigates these obstacles without getting stuck, whilst the previous one may require manual intervention in some cases.
The voice assistant also evolves. The S8 MaxV Ultra includes a simple assistant that responds to basic commands. The Saros 10R integrates a more comprehensive assistant, capable of maintaining more natural conversations and executing complex orders without requiring exact phrases. For users who prefer voice control over the app, this improvement facilitates daily use.
Multifunction Cleaning Base
Both bases feature a 2.5-litre dust bag, 4-litre clean water tank and detergent tank. The dirty water tank varies slightly: 3.5 litres in the S8 MaxV Ultra and 3 litres in the Saros 10R, a minor difference that doesn't affect real-world use.
The standout feature of the Saros 10R is tray self-cleaning 2.0, already installed from the factory. This function automatically cleans the tray where the mops rest after washing, preventing residue accumulation and bad odours. The S8 MaxV Ultra doesn't have this function, so the tray requires periodic manual cleaning. In practice, this means less maintenance and greater long-term hygiene.
Neither model offers integrated connection to plumbing nor an optional kit for it, so both require manual filling and emptying of tanks.
Dimensions
The Saros 10R measures 79.8 mm in height, a significant reduction compared to the S8 MaxV Ultra's 103 mm. Those more than 2 centimetres of difference allow the 2025 model to access under sofas, beds and low furniture where the previous one cannot enter. For homes with low-legged furniture, this characteristic extends the useful cleaning surface without needing to move furniture.
The diameter remains at 353 mm in both cases, so manoeuvrability in narrow corridors or between chair legs is equivalent.
The Saros 10R's base is slightly more compact in width (381 mm compared to 409 mm), although somewhat deeper (475 mm compared to 419 mm) and taller (488 mm compared to 470 mm). These variations are minimal and don't affect base placement in most spaces.
Real-World User Experience
In homes with pets, the Saros 10R offers clear advantages: greater suction power for embedded hair, anti-tangle side brush and better recognition of scattered objects. The S8 MaxV Ultra also works well in this profile, but requires somewhat more manual maintenance on the brushes.
For households with young children, the Saros 10R's ability to recognise more objects and overcome larger obstacles reduces jams and allows for more autonomous cleaning. The automatic mop removal function also proves useful when quick vacuuming is needed without mopping.
If the home has low furniture, the Saros 10R's reduced height makes the difference. The S8 MaxV Ultra may be left out of areas that the 2025 model cleans without problem.
Both models handle medium-pile carpets well, but the Saros 10R excels on thick carpets thanks to its greater power. On hard floors and parquet, both deliver excellent results, with effective mopping and complete mop drying that prevents residual moisture.
The Saros 10R's tray self-cleaning reduces weekly maintenance, something appreciated in day-to-day use. The S8 MaxV Ultra requires dedicating a few minutes each week to manually cleaning the washing tray.
Conclusion: Which to Choose?
Choose the Roborock S8 MaxV Ultra if you're looking for a high-end robot with a complete multifunction base at a more competitive price than the 2025 model. It's a solid option for medium-sized homes without the need to pass under very low furniture, with excellent results in vacuuming and mopping. If you don't have long-haired pets or don't mind occasional manual maintenance of brushes and tray, this model performs perfectly.
Choose the Roborock Saros 10R if you prioritise maximum suction power, lower height to access under furniture, and want to minimise manual maintenance thanks to tray self-cleaning and the anti-tangle side brush. It's the best option for homes with pets, young children, thick carpets or low furniture. The automatic mop removal and ability to overcome larger obstacles make it the more autonomous robot of the two. If you're looking for the latest in cleaning technology for 2025, this model justifies the additional investment.
