Roborock Saros 20 Flow Complete

Introduction

The Roborock Saros 20 Flow Complete represents Roborock's high-end offering for those seeking a fully autonomous robot vacuum and mop. With a suction power of 36,000 Pa and a mopping system with a 270 mm roller operating at 240 RPM, this model integrates advanced navigation technology and a multifunctional base that manages practically all maintenance.

Power and Cleaning System

The 36,000 Pa power places this robot amongst the most powerful options on the market, sufficient for medium-pile carpets and floors with ingrained dirt. The DuoDivide main brush is specifically designed to prevent hair tangles, something particularly useful in homes with pets. This system pushes hair towards the central suction gap rather than wrapping it around the brush, which notably reduces manual maintenance. Additionally, the main brush is liftable, which allows alternating between deep cleaning on carpets and gentle vacuuming on hard floors.

The side brushes also incorporate an anti-tangle system and are liftable, adapting to the type of surface. Special mention goes to the reversible dual side brush, which extends to better reach corners and edges, an area that many robots neglect. In practice, this means less need to manually touch up corners.

Mopping System

The mopping system uses a 270 mm roller that rotates at 240 RPM with a pressure of 15N and 16 water nozzles. This roller mops with warm water, which improves the dissolution of stuck-on stains. The mop is extendable up to 4.4 cm, allowing it to reach closer to skirting boards, and lifts up to 10.5 mm when the robot detects carpets or rugs.

What makes the difference here is the device's ability to detect dirt both on the floor and on the mops themselves. When it identifies dirtier areas, it automatically adjusts the mopping intensity and, if the mops are very dirty, returns to the base to wash them. This intelligent mopping management prevents the robot from spreading dirt rather than removing it. Furthermore, the mops can be detached at the base, which facilitates the automatic cleaning process and reduces manual contact with dirt.

Navigation and Intelligence

The Roborock Saros 20 Flow Complete features a 360° retractable LiDAR navigation system combined with an RGB camera and a front 3D laser sensor. This triple technology allows it to map with precision, avoid obstacles in real time and recognise up to 300 different types of objects. Pet recognition is included, which means the robot can adapt its behaviour when it detects animals in its path.

The RGB camera incorporates night vision LED and allows remote access, a useful function for occasional home monitoring. The SmartPlan 3.0 system manages cleaning intelligently, deciding optimal routes and adjusting parameters according to floor type and detected dirt level. It is also capable of cleaning behind curtains, something that requires a certain delicacy in navigation to avoid getting tangled.

The built-in voice assistant "Hello Rocky" allows controlling the robot through direct commands, although it is also compatible with Alexa and Google Home. Integration with Matter expands the possibilities for advanced home automation.

Autonomy and Practical Use

With a 6,400 mAh battery, the robot offers a declared autonomy of 301 minutes, more than five hours of continuous operation. This makes it suitable for large homes or for completing deep cleaning sessions without interruptions. Fast charging reduces waiting times between cycles when recharging is needed.

A notable feature is its ability to overcome obstacles: it can navigate single steps up to 45 mm and double steps up to 88 mm. This allows it to move between rooms with level differences, such as transitioning from wooden decking to tiles or overcoming raised thresholds without getting stuck. The robot measures 353 mm in diameter and 89.8 mm in height, standard dimensions that allow it to access beneath most furniture.

Base and Maintenance

The multifunctional base manages auto-emptying of the dust container into a 2.7 litre bag, washes the mops with hot water at 100°C and dries them with hot air at 63°C. Washing with high-temperature water is effective for removing greasy residue and bacteria from the mops, whilst hot air drying speeds up the process and prevents bad odours.

The washing tray also self-cleans with water at 100°C, which prevents dirt accumulation in the maintenance system itself. The clean and dirty water tanks have capacities of 4 and 3 litres respectively, sufficient for several mopping sessions without intervention. Additionally, the base includes a detergent tank that is automatically dispensed during mop washing.

The base occupies 381 mm in width, 451 mm in height and 454 mm in depth, a considerable size that should be taken into account when positioning it. In practice, maintenance is reduced to refilling clean water and detergent, emptying dirty water occasionally and changing the dust bag every month or two months depending on use.

Conclusion

The Roborock Saros 20 Flow Complete is designed for those seeking maximum cleaning autonomy and have medium or large homes with different types of flooring. Its combination of high suction power, intelligent mopping system with roller and complete multifunctional base make it a suitable solution for homes with pets, carpets and the need for regular mopping without frequent manual intervention.