Introduction
The Mova S70 Roller and the Roborock Saros Z70 represent two distinct philosophies within the high-end range of robot vacuum cleaners. The Mova model, launched in March 2026, opts for a mopping system using a 270 mm roller, whilst the Roborock Saros Z70, introduced in 2025, incorporates advanced artificial intelligence technology and an OmniGrip Arm robotic arm that marks important differences in versatility.
We're talking about devices designed for medium to large-sized homes seeking complete automation. The Mova stands out for its raw suction power and generous storage capacities, whilst the Roborock focuses on intelligence, environment recognition and more sophisticated autonomous functions.
Power and Suction
Suction power marks a notable difference. The Mova S70 Roller delivers 28,000 Pa, a figure that exceeds the Roborock Saros Z70 by 6,000 Pa. In practice, this translates to greater capacity to lift ingrained dirt from carpets or vacuum heavier particles.
The main brush also differs. The Mova uses a simple brush, whilst the Roborock features an anti-tangle brush that significantly reduces hair accumulation. For homes with pets, this detail can make the difference in daily maintenance.
A clear advantage of the Saros Z70 is that its main brush lifts during mopping, preventing it from getting unnecessarily wet. The Mova doesn't have this function, which can affect the cleaning of delicate floors when vacuuming and mopping simultaneously.
Regarding side brushes, both models include an extendable, liftable and anti-tangle side brush, matching features in corner and edge cleaning.
Mopping
Here we find important conceptual differences. The Mova S70 Roller opts for a 270 mm roller that sweeps and mops continuously, a system reminiscent of traditional mops but automated. The Roborock Saros Z70 uses two rotating mops, a more common design in high-end robots that allows for more controlled mopping.
The Roborock mops with warm water, whilst the Mova does so with cold water. The difference can be especially noticeable on difficult stains or greasy dirt, where warm water helps to dissolve residue better.
Mop lifting also varies. The Mova lifts up to 12 mm, sufficient for medium-thickness carpets. The Roborock offers between 12 and 22 mm, adapting better to thicker carpets or complicated transitions.
An exclusive function of the Saros Z70 is the automatic removal of mops at the base. This allows the robot to vacuum without dragging the mops, ideal when you only need to sweep without mopping. The Mova lacks this possibility.
The Roborock also detects dirt both on the mops and on the floor, adjusting mopping according to need. The Mova doesn't incorporate these intelligent detection functions, limiting itself to uniform mopping without automatic adaptation.
Both models extend the mops to better reach edges, matching capabilities in this aspect.
Navigation System
The Roborock Saros Z70 clearly stands out in artificial intelligence. It incorporates the StarSight 2.0 system with dual AI camera capable of recognising up to 108 different obstacles. Additionally, it identifies pets, has LED for night vision and allows remote camera access from your mobile.
The Mova S70 Roller uses the CovertSense dToF system with front 3D laser sensor, effective for avoiding obstacles, but without camera or visual recognition capabilities. It cannot identify pets nor does it offer remote camera access.
The Saros Z70 integrates SmartPlan 2.0 with RR Mason 12.0 algorithm, which analyses the environment and optimises cleaning routes. It also recognises stains using AI and adapts cleaning according to the type of dirt detected. The Mova lacks these adaptive intelligent cleaning functions.
For homes with pets or complex environments with many objects, the Roborock offers clear advantages. The Mova focuses on traditional laser navigation, reliable but less sophisticated.
Autonomy and Battery
The Roborock Saros Z70 features a 6,400 mAh battery, superior to the Mova S70 Roller's 5,200 mAh. This 1,200 mAh difference can translate into more continuous cleaning time, especially useful in large homes.
However, the Mova's greater suction power (28,000 Pa) consumes more energy, which can partially offset the capacity difference. In practice, autonomy will depend on the cleaning mode used and the power setting selected.
Smart Functions
The Mova S70 Roller overcomes obstacles up to 22 mm in height, sufficient capacity for most thresholds and small level changes in homes.
The Roborock Saros Z70 can overcome simple steps and adds a unique function: the OmniGrip Arm robotic arm. This arm allows the robot to manipulate light objects, open doors or move small obstacles aside, significantly expanding its autonomy and reducing manual interventions.
The Saros Z70 also includes its own voice assistant, allowing you to give commands directly to the robot without needing to use your mobile. The Mova doesn't have its own assistant, although both are compatible with Alexa and Google Home.
Multifunction Cleaning Base
Both bases include auto-emptying, hot water mop washing and hot air drying, essential functions for complete autonomous maintenance.
The Roborock incorporates tray self-cleaning version 2.0, an improved evolution of the system. The Mova also cleans the tray automatically, although without specifying version.
An important difference: the Saros Z70 includes a detergent tank that dispenses product during mop washing, improving hygiene. The Mova doesn't have a detergent tank.
In storage capacities, the Mova gains ground. Its dust bag reaches 3.2 litres compared to the Roborock's 2.5. The water tanks are also more generous: 5 litres of clean water and 4.5 of dirty water, compared to the Saros Z70's 4 and 3 litres respectively. This means fewer refills and emptying, especially useful in large homes or with frequent mopping.
Neither offers integrated plumbing connection nor optional kit for it.
Dimensions
The Roborock Saros Z70 measures 79.8 mm in height, which allows it to slip under low furniture more easily. The Mova S70 Roller reaches 90 mm, a difference that can limit access under low-height beds or sofas.
The diameter is practically identical: 350 mm on the Mova and 353 mm on the Roborock, with no appreciable differences in manoeuvrability.
The bases present different designs. The Mova's is more compact in depth (255 mm) but wider (340 mm) and taller (503 mm). The Roborock's base is 475 mm deep, 381 mm wide and 488 mm tall. It's advisable to measure the available space before deciding, especially if you plan to place the base in narrow spaces.
Real-world experience
For large homes, the Mova S70 Roller offers advantages in mopping autonomy thanks to its larger tanks. Fewer interruptions to refill water or empty dirt means greater convenience on large surfaces. Its 28,000 Pa power is also useful on thick carpets or floors with lots of accumulated dirt.
In homes with pets, the Roborock Saros Z70 comes out ahead. Its anti-tangle brush drastically reduces maintenance, and pet recognition using AI avoids unnecessary frights or chases. Remote camera access also allows you to monitor pets whilst the robot cleans.
For those seeking maximum automation without intervening, the Saros Z70 stands out. The robotic arm, automatic mop removal and dirt detection minimise the need for supervision. The Mova requires more manual attention in certain aspects.
If the home has low furniture, the Roborock fits better thanks to its 79.8 mm height. The Mova, at 90 mm, may be left out of tighter spaces.
The Mova's roller system may be interesting for those who prefer continuous mopping similar to traditional methods, although the Roborock's rotating mops offer more control and adaptability according to floor type.
Conclusion: Which to choose?
Choose the Mova S70 Roller if: You're looking for the highest available suction power, you need large tanks to clean large surfaces without interruptions, you prefer a roller mopping system and you value the relationship between features and price. It's ideal for large homes with thick carpets where raw power makes the difference.
Choose the Roborock Saros Z70 if: You prioritise advanced artificial intelligence, pet recognition, remote camera access and maximum autonomy thanks to the robotic arm. Perfect for homes with pets, users seeking cutting-edge technology and homes with low furniture where the 79.8 mm height facilitates access. The anti-tangle brush and dirt detection reduce maintenance to a minimum.
