The Yeedi S20 Infinity Ultra brings one of the most interesting new robot vacuum mopping products of 2026 to the low price point. Until now, Ecovacs’ FocusJet stain pre-dissolving system has only appeared on the flagship Ecovacs Deebot X12 OmniCyclone. Yeedi, a more focused sub-brand of Ecovacs, now brings the same technology to the low-priced robotic vacuum cleaner and mop combo.
That makes the S20 Infinity Ultra worthy of attention, especially for consumers looking for premium robot vacuum features without the flagship price.
The S20 Infinity Ultra is also a new version of the Yeedi S20 Infinity, the bagless model we reviewed earlier this year that earned a spot on our list of the top 20 robot vacuums during testing.
I Yeedi S20 Infinity Ultra is a robot vacuum and mop combo that brings several premium cleaning features to an affordable price point. It features Yeedi’s new FocusJet stain-dissolving system, advanced roller mopping, AI-powered obstacle avoidance, and an OMNI self-cleaning dock with hot water mop wash and hot dry. As a sub-brand of Ecovacs, Yeedi positions the S20 Infinity Ultra as a value-oriented alternative to expensive flagship robot vacuums.
Amount from May 24, 2026
Main Features
Default empty channel: Dumping Waste | Mop Roller Washer | Wash Mop Roller with Hot Water | Dries Mop Roller | Dries Mop Roller with hot 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 the Brush Roll
Performance: Carpet Upholstery Settings | FocusJet Pressurized Water Jets for Dry Spots
Mapping / Navigation: Maps Multiple Levels | Visual Barriers and No-Go Areas
Avoiding Obstacles: 100 Things to See
Controls: Third Party Voice Control Options
Vacuum Wars Measurements
| 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 |
| A pet | TBD |
3.42 |
| Wandering around | TBD |
3.21 |
| Battery | TBD |
2.56 |
| Working | TBD |
3.56 |
Official Details
| Official Battery Life: 200 Minutes | Navigation Type: Embedded dToF Lidar |
| Official Tensile Strength: 22000 Pa | Dust Bin Size: 250ml |
| Obstacle Avoidance Type: Single Camera, LED, System Light, and edge sensors | Items Recognized: 100 |
| Multi Level Maps: Yes | Visible Obstacles: Yes |
| Cleaning Power: unknown | Disposable Bag: Bagless 1.6L Dust Cup* |
FocusJet Stain Pre-Dissolving Technology Targets Tough Floor Messes
At the heart of the Yeedi S20 Infinity Ultra is the new FocusJet Stain Pre-Dissolving Technology. The system sprays a directed mist of water in front of the mop roller. This loosens the dried spots before physical scrubbing begins.
According to Yeedi, the system is designed to improve the removal of stubborn debris such as coffee spills, sauces, and dried water stains. By softening the tail before contact, the roller mop can clean effectively in one pass.
OZMO Roller 3.0 and Mop Roller Smart Cover Helps Protect Carpets
The S20 Infinity Ultra also uses the latest OZMO Roller 3.0 mopping system paired with the Mop Roller Smart Cover. The system refreshes the mop with clean water while it mops, with 200 RPM and intensive scrubbing.
Smart Mop Cover Prevents Wet Carpet Transfer
The cover automatically protects the wet mop roller whenever the robot moves on carpet or non-mopping surfaces. This helps prevent wet carpet transfer and secondary contamination. A clever addition that addresses one of the most common complaints about roller-style robot mops.
Because the roller remains secure while moving between floor types, the system can help reduce unwanted moisture tracking throughout the home.
22,000Pa Suction, ZeroTangle 4.0, and Carpet Boost
For cleaning, the S20 Infinity Ultra boasts up to 22,000Pa of suction power. It has a ZeroTangle 4.0 brush system on both the main brush and the side brush for better hair management.
Yeedi says the carpet boost feature automatically increases suction when more 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 waste including pet hair, dust, crumbs, and large particles embedded in carpets.
Omni Station Includes Hot Water Mop Wash and 145°F Hot Air Dryer
The included Omni Station handles many common maintenance tasks automatically. The dock can wash the mop roller using hot water and dry it with hot air at 145°F to reduce odors and help keep the roller fresh between cleaning runs. It also automatically refills the robot’s water tank, which Yeedi says allows the robot to clean houses up to 400 square meters with minimal user intervention. Dock supports PowerBoost technology, which charges the robot’s battery with 13% in just 3 minutes.
Robot Vacuum AI Barrier Avoidance and Intelligent Contamination Detection
Obstacle avoidance is handled by an RGBD AI system designed to recognize and navigate around common household objects such as shoes, cables, toys, and furniture.
Top 20 Robot Vacuums
Check out Vacuum Wars’ up-to-date ratings of the best robot vacuums, based on independent, hands-on testing. We buy every unit ourselves and test more than 150 models, giving us an in-depth benchmark for cleaning performance, navigation, battery life, and advanced features like obstacle avoidance and clipping.
The robot uses intelligent object recognition to successfully navigate in tight spaces without getting stuck as often as older navigation systems. The system can detect particularly dirty areas and automatically intensify cleaning when needed.
Additional features of Yeedi S20 Infinity Ultra
Other features included include:
- Automatic mop washing and drying
- Automatic water refill
- AI spot detection
- Large particle recognition
- The discovery of the carpet
- Control the app over 2.4GHz Wi-Fi
As premium-style features increasingly trickle down to lower price categories, the S20 Infinity Ultra could be one of the most compelling robot vacuum releases of the year.
When Vacuum Wars reviews this product, we will make our findings available in the Robot Vacuum review section of this website. High-end models have been added to our Best Robot Vacuums list.
