Launch of 'Roborock Saros 20 Sonic' Robot Vacuum Featuring Extendable Sonic Mop and Advanced Navigation Technology
Yamada Holdings will launch Roborock's next-generation robot vacuum, the Saros 20 Sonic, on May 18, 2026. It features 8.8cm obstacle climbing, 36,000Pa suction, and a 100°C washing dock.
📋 Article Processing Timeline
- 📰 Published: May 19, 2026 at 00:30
- 🔍 Collected: May 18, 2026 at 16:01
- 🤖 AI Analyzed: May 18, 2026 at 20:21 (4h 19m after Collected)
Yamada Holdings Co., Ltd. (Headquarters: Takasaki City, Gunma Prefecture; Representative Director, Chairman and CEO: Noboru Yamada) will launch the "Roborock Saros 20 Sonic" (hereafter, Saros 20 Sonic), the next-generation flagship robot vacuum cleaner from Beijing Roborock Technology Co., Ltd. (Headquarters: Beijing, China; President: Quan Gang), on Monday, May 18, 2026, at Yamada Denki stores nationwide* and Yamada Web.com (e-commerce site).
* Some stores may not carry the product. It can be made available via back-order upon request.
This product is equipped with a high-speed sonic vibrating mop that scrubs floors with high pressure and high-speed vibrations of 4,000 times per minute*1. The mop physically extends to thoroughly clean edges and corners of rooms. Furthermore, it flexibly adapts to complex thresholds and carpets, featuring a lifting mechanism that smoothly overcomes double thresholds up to 8.8cm in height. It also utilizes LDS laser technology to achieve an innovative level of smooth navigation and mopping, as well as highly accurate mapping even over large areas.
■ From wiping to polishing: Evolved high-speed vibrating mopping system
The high-speed vibrating mopping system, utilizing an independent motor, powerfully wipes floors while pressing down with 1.75 times*2 stronger pressure and sonic vibrations of 4,000 times per minute*1. It firmly removes stubborn dirt stuck to the floor, keeping it smooth and clean. The mop head, boasting a 27%*3 larger vibration area, adopts a physically extending structure. When it detects a wall, the high-speed vibrating mop slides to reach 0mm*1 from the edge*4, gently wiping the area. By utilizing a highly absorbent mop, it evenly cleans the floor. Furthermore, the water volume and vibration intensity can be individually adjusted within the Roborock app.
■ Up to 8.8cm: Unstoppable cleaning beyond thresholds
Equipped with a lifting mechanism that automatically raises the main unit when passing over thresholds. It can stably overcome double thresholds up to 8.8cm*5. It also supports carpets up to 3cm thick*1. It automatically adjusts the height of the unit according to the carpet pile length, achieving a high dust removal rate of 30%*6 on long-pile carpets.
■ Powerful 36,000Pa suction and two brushes achieving 0% hair entanglement*7 minimize maintenance effort
With a powerful suction of 36,000Pa*8, it thoroughly cleans floor surfaces, from fine house dust trapped deep in carpets or floor crevices to large debris like pet litter.
Additionally, two spiral main brushes guide dirt and hair to the entrance of the dustbin, suctioning them powerfully. The asymmetrically designed side brush with an arc shape gathers debris flexibly utilizing centrifugal force without tangling long hair or pet fur. Both brushes achieve a 0% hair entanglement rate*7, reducing maintenance effort.
■ Accurate room mapping for efficient cleaning
An ultra-thin design with a main body height of 7.98cm, capable of entering low spaces under furniture. The top LDS laser sensor automatically retracts and rises, enabling cleaning in low spaces such as under furniture. Even when the LiDAR sensor is retracted, it maintains a 100° rear field of view, achieving mapping and escape with a 100% success rate*9 even in spaces of about 7cm. The navigation utilizes the "Reactive AI 3.0 Obstacle Recognition Feature," identifying over 300 types*10 of objects using triple structured light, an RGB camera, and VertiBeam lateral structured light to smartly avoid cables and clutter.
■ The new "RockDock" drastically reduces post-cleaning effort
The latest multi-functional charging dock, "RockDock," breaks down oil stains through 100°C*11 hot water washing, achieving 99.99% sterilization*12. It then dries the mop, the bottom of the dock, and the entire dust path with 55°C*13 hot air, suppressing mold and odors. Furthermore, it is equipped with a smart dirt detection feature that detects dirt using an independent mop washing function when only the mop is left in the dock in suction mode, performing re-washing and re-cleaning.
It also supports automatic detergent dispensing, automatic dust collection for up to 65 days, and 150-minute fast charging*1. By combining it with the standard charging dock or an optional water supply and drainage system, convenience can be maximized.
■ Connected intelligence features to further evolve the smart home
The Roborock app learns room types and user usage patterns to automatically optimize cleaning routines. For example, as needed
* Some stores may not carry the product. It can be made available via back-order upon request.
This product is equipped with a high-speed sonic vibrating mop that scrubs floors with high pressure and high-speed vibrations of 4,000 times per minute*1. The mop physically extends to thoroughly clean edges and corners of rooms. Furthermore, it flexibly adapts to complex thresholds and carpets, featuring a lifting mechanism that smoothly overcomes double thresholds up to 8.8cm in height. It also utilizes LDS laser technology to achieve an innovative level of smooth navigation and mopping, as well as highly accurate mapping even over large areas.
■ From wiping to polishing: Evolved high-speed vibrating mopping system
The high-speed vibrating mopping system, utilizing an independent motor, powerfully wipes floors while pressing down with 1.75 times*2 stronger pressure and sonic vibrations of 4,000 times per minute*1. It firmly removes stubborn dirt stuck to the floor, keeping it smooth and clean. The mop head, boasting a 27%*3 larger vibration area, adopts a physically extending structure. When it detects a wall, the high-speed vibrating mop slides to reach 0mm*1 from the edge*4, gently wiping the area. By utilizing a highly absorbent mop, it evenly cleans the floor. Furthermore, the water volume and vibration intensity can be individually adjusted within the Roborock app.
■ Up to 8.8cm: Unstoppable cleaning beyond thresholds
Equipped with a lifting mechanism that automatically raises the main unit when passing over thresholds. It can stably overcome double thresholds up to 8.8cm*5. It also supports carpets up to 3cm thick*1. It automatically adjusts the height of the unit according to the carpet pile length, achieving a high dust removal rate of 30%*6 on long-pile carpets.
■ Powerful 36,000Pa suction and two brushes achieving 0% hair entanglement*7 minimize maintenance effort
With a powerful suction of 36,000Pa*8, it thoroughly cleans floor surfaces, from fine house dust trapped deep in carpets or floor crevices to large debris like pet litter.
Additionally, two spiral main brushes guide dirt and hair to the entrance of the dustbin, suctioning them powerfully. The asymmetrically designed side brush with an arc shape gathers debris flexibly utilizing centrifugal force without tangling long hair or pet fur. Both brushes achieve a 0% hair entanglement rate*7, reducing maintenance effort.
■ Accurate room mapping for efficient cleaning
An ultra-thin design with a main body height of 7.98cm, capable of entering low spaces under furniture. The top LDS laser sensor automatically retracts and rises, enabling cleaning in low spaces such as under furniture. Even when the LiDAR sensor is retracted, it maintains a 100° rear field of view, achieving mapping and escape with a 100% success rate*9 even in spaces of about 7cm. The navigation utilizes the "Reactive AI 3.0 Obstacle Recognition Feature," identifying over 300 types*10 of objects using triple structured light, an RGB camera, and VertiBeam lateral structured light to smartly avoid cables and clutter.
■ The new "RockDock" drastically reduces post-cleaning effort
The latest multi-functional charging dock, "RockDock," breaks down oil stains through 100°C*11 hot water washing, achieving 99.99% sterilization*12. It then dries the mop, the bottom of the dock, and the entire dust path with 55°C*13 hot air, suppressing mold and odors. Furthermore, it is equipped with a smart dirt detection feature that detects dirt using an independent mop washing function when only the mop is left in the dock in suction mode, performing re-washing and re-cleaning.
It also supports automatic detergent dispensing, automatic dust collection for up to 65 days, and 150-minute fast charging*1. By combining it with the standard charging dock or an optional water supply and drainage system, convenience can be maximized.
■ Connected intelligence features to further evolve the smart home
The Roborock app learns room types and user usage patterns to automatically optimize cleaning routines. For example, as needed
FAQ
What is the suction power and brush feature of the Saros 20 Sonic?
It boasts a powerful 36,000Pa suction and features dual main brushes with a 0% hair entanglement rate.
Is the mop maintenance fully automated?
Yes. The new RockDock washes the mop with 100°C hot water and dries it with 55°C hot air to prevent mold and odors.
Can it clean edges and under furniture?
It cleans thoroughly using an extending mop that reaches 0mm from the wall and a 7.98cm ultra-thin body with a retractable sensor.