The Yeedi S20 Infinity Ultra brings one of the more interesting robot vacuum mopping innovations of 2026 to a lower price point. Until now, Ecovacs’ FocusJet stain pre-dissolving system had only appeared on the flagship Ecovacs Deebot X12 OmniCyclone. Yeedi, a value-focused sub-brand of Ecovacs, is now bringing similar technology to a lower-priced robot vacuum and mop combo.
That immediately makes the S20 Infinity Ultra worth paying attention to, especially for buyers looking for premium robot vacuum features without flagship pricing.
The S20 Infinity Ultra is also a new variant of the Yeedi S20 Infinity, a bagless model we reviewed earlier this year that earned a spot on our Top 20 Robot Vacuums list at the time of testing.
The Yeedi S20 Infinity Ultra is a robot vacuum and mop combo that brings several premium cleaning features to a more affordable price point. It includes Yeedi’s new FocusJet stain pre-dissolving system, advanced roller mopping, AI-powered obstacle avoidance, and a self-cleaning OMNI dock with hot water mop washing and heated drying. As a sub-brand of Ecovacs, Yeedi positions the S20 Infinity Ultra as a value-focused alternative to more expensive flagship robot vacuums.
Price as of May 22, 2026
Auto Empty Station: Self Empties Debris | Washes Mop Roller | Washes Mop Roller with Hot Water | Dries Mop Roller | Dries Mop Roller with Heated Air| Self Cleaning | PowerBoost Charging
Mopping: Lifts Mop Roller on Carpets | Extending Mop Roller for Hard to Reach Areas
Hardware: 40mm Threshold Crossing | Removes Hair from Brush Roll
Performance: Carpet Boost Settings | FocusJet Pressurized Water Jets for Dried-On Stains
Mapping / Navigation: Multi Level Maps | Virtual Barriers and No Go Zones
Obstacle Avoidance: 100 Objects Recognized
Controls: Third-Party Voice Control Options
| Scores | Yeedi S20 Infinity Ultra | Average Robot Vacuum Tested |
|---|---|---|
| Vacuum Wars Overall | TBD | 2.58 |
| Features | TBD | 3.28 |
| Mopping Performance | TBD | 2.39 |
| Obstacle Avoidance | TBD | 3.39 |
| Pet | TBD | 3.42 |
| Navigation | TBD | 3.21 |
| Battery | TBD | 2.56 |
| Performance | TBD | 3.56 |
| Official Battery Life: 200 Minutes | Navigation Type: Embedded dToF Lidar |
| Official Suction Power: 22000 Pa | Dust Bin Size: 250ml |
| Obstacle Avoidance Type: Single Camera, LED, Structured Light, & Edge Sensors | Objects Recognized: 100 |
| Multi Level Maps: Yes | Virtual Barriers: Yes |
| Detergent Capacity: unknown | Disposable Bag: Bagless 1.6L Dust Cup* |
FocusJet Stain Pre-Dissolving Technology Targets Tough Floor Messes
At the center of the Yeedi S20 Infinity Ultra is the new FocusJet Stain Pre-Dissolving Technology. The system sprays a targeted mist of water ahead of the mop roller. This loosens dried-on stains before physical scrubbing begins.
According to Yeedi, the system is designed to improve removal of stubborn messes like coffee spills, sauces, and dried water spots. By softening grime before contact, the roller mop can potentially clean more effectively in a single pass.
OZMO Roller 3.0 and Mop Roller Smart Cover Help Protect Carpets
The S20 Infinity Ultra also uses the latest OZMO Roller 3.0 mopping system paired with a Mop Roller Smart Cover. The system refreshes the mop with clean water while it mops, with 200 RPM and pressurized scrubbing.
Smart Mop Cover Prevents Wet Carpet Transfer
The cover automatically shields the wet mop roller whenever the robot travels onto carpet or non-mopping zones. This helps prevent damp carpet transfer and secondary contamination. It’s a clever addition that addresses one of the more common complaints with roller-style robot mops.
Because the roller stays protected while moving between floor types, the system may help reduce unwanted moisture tracking throughout the home.
See also: How Vacuum Wars Tests Robot Vacuum Mops
22,000Pa Suction, ZeroTangle 4.0, and Carpet Boost
For vacuuming, the S20 Infinity Ultra advertises up to 22,000Pa of suction power. It has the ZeroTangle 4.0 brush system on both the main brush and the side brush for efficient hair management.
Yeedi says a carpet boost feature automatically increases suction when additional debris or carpet is detected, allowing the robot to adapt cleaning performance depending on floor conditions. The high suction system is designed to handle common household debris including pet hair, dust, crumbs, and larger particles embedded in carpets.
Omni Station Features Hot Water Mop Washing and 145°F Hot Air Drying
The included Omni Station handles many of the routine maintenance tasks automatically. The dock can wash the mop roller using hot water and dry it with 145°F hot air to reduce odors and help keep the roller fresh between cleaning runs. It also refills the robot’s onboard water tank automatically, which Yeedi says allows the robot to clean homes up to 400 square meters with minimal user intervention. The dock supports PowerBoost technology, which charges the robot’s battery by 13% in just 3 minutes.
Robot Vacuum AI Obstacle Avoidance and Smart Dirt Detection
Obstacle avoidance is handled through an RGBD AI system designed to recognize and navigate around common household items like shoes, cords, toys, and furniture.
Top 20 Robot Vacuums
Explore Vacuum Wars’ always up-to-date rankings of the best robot vacuums, based on independent, hands-on testing. We purchase every unit ourselves and have evaluated more than 150 models, giving us a deep benchmark for cleaning performance, navigation, battery life, and advanced features like obstacle avoidance and mopping.
The robot uses intelligent object recognition to maneuver more effectively through cluttered rooms without getting stuck as often as older navigation systems. The system can identify especially dirty areas and automatically intensify cleaning when necessary.
Additional Yeedi S20 Infinity Ultra Features
Other included features include:
- Automatic mop washing and drying
- Auto water refilling
- AI stain detection
- Large particle recognition
- Carpet detection
- App control over 2.4GHz Wi-Fi
With premium-style features increasingly trickling down into lower price categories, the S20 Infinity Ultra could become one of the more compelling value-focused robot vacuum releases of the year.
If Vacuum Wars reviews this product, we will make our findings available in the Robot Vacuum Reviews area of this website. Top ranking models are added to our Best Robot Vacuums list.
Yeedi S20 Infinity Ultra
