Roborock Saros Z70

Introduction

The Roborock Saros Z70 arrives on the market in 2025 as one of the most advanced robot vacuum cleaners from the world-leading brand. We're looking at a high-end device that incorporates an OmniGrip Arm robotic arm, 22000 Pa suction power and a StarSight 2.0 navigation system with dual camera capable of recognising up to 108 different obstacles. The 6400 mAh battery ensures extended cleaning sessions even in large homes.

Power and Cleaning System

With 22000 Pa of power, this robot mop positions itself at the top of the market in terms of suction capacity. The main brush incorporates FreeFlow technology with anti-tangle system already installed from the factory, which is especially useful for homes with pets or long hair. Typically, hair and fibres end up wrapped around the brush, but this design minimises that problem from day one. Additionally, both the main and side brushes can lift when necessary, adapting to the type of surface. The side brush features extension and anti-tangle technology, which significantly improves cleaning in corners and edges where dirt tends to accumulate most.

Mopping System

The Roborock Saros Z70's mopping system uses two rotating mops that spin at 200 RPM. These mops can lift between 12 and 22 mm, allowing the robot to travel over carpets without wetting them. The FlexiArm function extends the mops to the sides, thus reaching skirting boards and corners that would normally remain unmopped. In practice, this feature makes a notable difference compared to models that only mop the central area. The base washes the mops with hot water at 80°C during cleaning sessions and upon completion, effectively eliminating bacteria and dirt residue. It then dries them with hot air at 55°C, preventing bad odours. The robot detects both dirt on the floor and the condition of the mops, adjusting the mopping intensity when it encounters dirtier areas. Upon finishing, it can leave the mops at the base, keeping the robot completely dry.

Navigation and Intelligence

The StarSight 2.0 system combines dual camera with front 3D laser sensor, enabling the Roborock Saros Z70 to identify up to 108 different types of obstacles. It recognises pets, cables, shoes and other common household objects. The night vision LED allows it to function effectively even in dark rooms. The RR Mason 12.0 algorithm manages all this information through the SmartPlan 2.0 system, which plans optimised routes according to the type of dirt detected and the characteristics of each room. Remote camera access adds an extra home surveillance functionality. The OmniGrip Arm robotic arm represents a notable innovation, expanding the robot's capabilities beyond simple cleaning. The simple voice assistant facilitates basic control without needing to take out your mobile.

Autonomy and Practical Use

The 6400 mAh battery provides sufficient energy to complete cleaning in large-sized homes. The robot's dust container has a capacity of 180 ml, whilst the water tank reaches 69 ml. With dimensions of 353 mm in diameter and 79.8 mm in height, it can slide under most furniture. It's worth mentioning its ability to overcome obstacles between 30 and 40 mm, allowing it to cross door thresholds and small level changes without problems that would block other models.

Base and Maintenance

The Roborock Saros Z70's multifunction base measures 381 mm wide, 488 mm high and 475 mm deep. It incorporates a 4 litre clean water tank, a 3 litre dirty water tank and a 2.5 litre dust bag. The 2.0 self-cleaning system for the washing tray comes already installed, keeping the base hygienic without manual intervention. It has a detergent tank, which is automatically dispensed during mop washing. Ultimately, maintenance is reduced to refilling clean water and emptying dirty water every several weeks, depending on usage.

Conclusion

The Roborock Saros Z70 is designed for demanding users seeking an intelligent vacuum cleaner with minimal intervention and maximum autonomy. It's especially suitable for large homes with pets, carpets and multiple rooms where its power, advanced navigation and robotic arm can be utilised to the fullest. A complete device that sets the bar very high in 2025.