Roborock Saros 20 Sonic Robot Vacuum and Mop with RockDock

The Roborock Saros 20 Sonic is an advanced robot vacuum and mop designed to provide powerful, automated cleaning across hard floors, carpets, edges, corners, and low-clearance areas. It combines 36,000Pa HyperForce suction, VibraRise 5.0 sonic mopping, intelligent obstacle recognition, and the multifunctional RockDock for a more complete hands-free cleaning experience.

Its slim 7.98cm body allows the robot to clean beneath sofas, beds, cabinets, and other low furniture. The RetractSense navigation system lowers the LiDAR module when additional clearance is needed while maintaining accurate mapping and navigation throughout the home.

Powerful 36,000Pa HyperForce Suction

The high-performance digital motor generates up to 36,000Pa of suction power, helping remove fine dust, crumbs, pet hair, and larger debris from hard floors and carpets. The brush stabilization system keeps the main brush properly positioned against the floor, improving debris pickup and carpet-cleaning performance.

The AdaptiLift Chassis 3.0 can intelligently adjust the robot’s height and cleaning components to suit different floor types and obstacles.

VibraRise 5.0 Sonic Mopping

The upgraded VibraRise 5.0 mopping system uses up to 4,000 vibrations per minute and applies 14N of downward pressure to help remove dried spills and stubborn stains. Its extendable mop reaches closer to walls, corners, and furniture edges for more complete floor coverage.

When carpet is detected, the robot can automatically lift its mop to help prevent carpets from becoming wet. This allows the Saros 20 Sonic to vacuum carpets and mop hard floors during the same cleaning cycle.

Dual Anti-Tangle Brush System

The DuoDivide main brush and FlexiArm side brush work together to reduce hair wrapping and interruptions. Roborock states that the system is designed to handle hair measuring up to approximately 40cm in length, making it suitable for homes with pets or people with long hair.

The extendable side brush also moves outward when necessary to collect debris from corners and along wall edges.

Advanced Obstacle Recognition

The Reactive AI 3.0 obstacle-recognition system combines an RGB camera, tri-laser structured light, and a VertiBeam side laser. This sensing system helps the robot identify objects, avoid obstacles, recognize items positioned close to walls, and plan safer cleaning routes.

VertiBeam lateral structured light expands the robot’s side-facing detection area, helping it identify slim objects and obstacles that conventional front-facing sensors may miss.

Intelligent Dirt Detection

DirTect technology uses the robot’s RGB camera to identify areas with heavier dirt or visible stains. When additional cleaning is required, the robot can automatically perform a more intensive cleaning routine in the affected area. This feature must be enabled through the AI Laboratory section of the Roborock app.

Cleans Beneath Low Furniture

At only 79.8mm high, the Roborock Saros 20 Sonic can access areas beneath low furniture that taller robot vacuums may not reach. Its RetractSense system allows the LiDAR sensor to retract when entering restricted spaces before extending again for navigation in open areas.

Improved Threshold-Crossing Performance

The AdaptiLift Chassis 3.0 helps the robot move across door sills, sliding-door tracks, and other raised surfaces. It can cross single thresholds measuring up to 4.5cm and suitable double-layer thresholds measuring up to 4.5cm plus 4.3cm.

Actual threshold-crossing performance can vary depending on the shape, spacing, surface material, and surrounding environment.

Automated RockDock Cleaning Station

The included RockDock automates several routine maintenance tasks, including:

• Automatic dust emptying
• Hot-water mop washing
• Independent mop-pad washing
• Warm-air mop drying
• Dust-bag and internal duct drying
• Automatic water replenishment
• Automatic detergent dispensing
• Dock self-cleaning

The dock can wash the mop using water heated to up to 100°C. It also uses air heated to approximately 55°C to dry the mop, dust bag, and internal dust path, helping reduce retained moisture and unwanted odors.

Its independent mop-washing system can clean the detached mop pad inside the dock while the robot continues vacuuming.

Smart Cleaning with Roborock SmartPlan 3.0

Roborock SmartPlan 3.0 learns from previous cleaning routines and automatically selects suitable cleaning settings for different rooms. It can adjust factors such as suction strength, cleaning sequence, and mopping intensity based on the mapped environment and cleaning history.

Users can also create cleaning schedules, establish no-go zones, divide rooms, select specific cleaning areas, and customize floor-cleaning settings through the Roborock app.

Built-In Voice Control

The integrated voice assistant responds to the “Hello Rocky” wake command and can perform supported cleaning commands without requiring a Wi-Fi connection. The Saros 20 Sonic is also Matter-enabled for integration with compatible smart-home platforms.

Long Battery Life and Fast Charging

A large 6,400mAh battery provides up to approximately 180 minutes of operation in balanced vacuum-and-mop mode under Roborock’s testing conditions. The robot can recharge from 15% to 100% in approximately 2.5 hours before automatically continuing an unfinished cleaning task.

Actual runtime varies according to suction level, mopping settings, floor type, room layout, obstacle frequency, and connected features.

Key Features

• 36,000Pa HyperForce suction power
• VibraRise 5.0 sonic mopping system
• Up to 4,000 mop vibrations per minute
• 14N downward mopping pressure
• Extendable mop for edge and corner cleaning
• Automatic mop lifting on carpets
• DuoDivide anti-tangle main brush
• FlexiArm anti-tangle side brush
• AdaptiLift Chassis 3.0
• RetractSense retractable LiDAR navigation
• Reactive AI 3.0 obstacle recognition
• RGB camera and tri-laser structured light
• VertiBeam side-obstacle detection
• DirTect dirt and stain recognition
• 7.98cm low-clearance design
• Advanced threshold-crossing capability
• Automated RockDock cleaning station
• Up to 100°C hot-water mop washing
• 55°C warm-air drying
• Automatic dust emptying
• Automatic detergent dispensing
• Automatic water-tank refilling
• Roborock SmartPlan 3.0
• Built-in “Hello Rocky” voice assistant
• Matter smart-home support
• 6,400mAh battery
• Up to 180 minutes of runtime
• Approximately 2.5-hour charging time

Technical Specifications

Cleaning Performance

• Maximum suction power: 36,000Pa
• Main brush: DuoDivide anti-tangle brush
• Side brush: FlexiArm extendable anti-tangle brush
• Mopping system: VibraRise 5.0
• Maximum mopping frequency: 4,000 vibrations per minute
• Mop pressure: 14N
• Carpet detection: Supported
• Automatic mop lifting: Supported

Navigation and Detection

• Navigation system: RetractSense retractable LiDAR
• Obstacle recognition: Reactive AI 3.0
• Visual sensor: RGB camera
• Additional sensors: Tri-laser structured light and VertiBeam side laser
• Dirt recognition: DirTect
• On-device visual-data processing: Supported

Mobility

• Maximum single-threshold height: Up to 4.5cm
• Maximum supported double-layer threshold: Up to 4.5cm plus 4.3cm
• Adjustable chassis: AdaptiLift Chassis 3.0
• Low-clearance capability: Approximately 7.98cm

Battery

• Battery capacity: 6,400mAh
• Maximum runtime: Up to 180 minutes
• Tested mode: Balanced suction with vacuuming and mopping
• Charging time from 15% to 100%: Approximately 150 minutes

Robot Dimensions and Weight

• Robot dimensions: 350 × 353 × 79.8mm
• Combined robot and dock weight: Approximately 14.33kg
• Retail box dimensions: 535 × 474 × 429mm
• Retail box weight: Approximately 19.61kg
• Available color: Black

RockDock Functions

• Automatic dust collection
• Automatic clean-water refilling
• Automatic detergent dispensing
• Independent mop washing
• Hot-water mop washing at up to 100°C
• Warm-air drying at approximately 55°C
• Dust-bag and internal dust-path drying
• Automatic dock self-cleaning

What’s in the Box

• Roborock Saros 20 Sonic robot vacuum and mop
• RockDock with disposable dust bag pre-installed
• Dock base
• Power cord
• User manual

The Roborock Saros 20 Sonic robot vacuum and mop is ideal for large homes, mixed flooring, pet-friendly households, and users seeking powerful suction, advanced sonic mopping, intelligent navigation, and extensive automated dock maintenance.