For pool owners seeking a cordless robotic pool cleaner, Wybot offers two standout contenders: the Wybot S1 vs Wybot S2. Both are smart, wireless, and efficient, but each has unique strengths that may appeal to different users. This comprehensive comparison covers every critical detail—from pool compatibility to brush systems, suction power to app control—to help you make the most informed choice.

Contents
Differences Between Wybot S1 vs Wybot S2
Below is a summary of the specifications:




Design Comparison
The Wybot S1 is a lightweight, cordless robotic pool cleaner tailored for in-ground pools up to 1,300 square feet. Weighing only around 17 pounds, it features a streamlined body and a convenient floating retrieval handle, making it simple to remove from the water post-cleaning. The build focuses on portability and practicality, especially for users with smaller residential pools.
On the other hand, the Wybot S2 is built for scale. Supporting both in-ground and above-ground pools, it handles areas up to 3,230 square feet. With a slightly heavier weight of 20 pounds, it incorporates a more durable shell, a higher-capacity battery, and an advanced triple-motor drive system. These enhancements make it suitable for larger residential or semi-commercial settings where durability and extended runtime are essential.
Both cleaners operate completely cordless, eliminating the hassle of cable management and providing unrestricted movement within the pool. The lack of an anti-tangle swivel is irrelevant in this context due to the wireless design. Each unit is also engineered with quick-drain ports, allowing rapid water release when lifted from the pool.
Winner: Wybot S2
With its dual pool compatibility, more robust build, and capacity to handle larger pools, the S2 edges out the S1 in design versatility.

Cleaning Performance Comparison
The Wybot S1 delivers solid cleaning power using dual PVC brushes and a 2,772 GPH suction system. Powered by a 6,400mAh battery, it runs up to 200 minutes per cycle, offering ample time to clean most mid-size pools. Its navigation is guided by a combination of infrared sensors and gyroscopic stabilization, which helps it follow semi-structured paths and avoid pool walls and obstacles.
For debris filtration, the S1 features a 180μm mesh basket, capable of capturing leaves, bugs, and medium-sized particles. However, finer particulates like sand or pollen may pass through due to the single-layer design.
In contrast, the Wybot S2 is powered by a triple-motor brushless drive system, which delivers enhanced suction (estimated well above 3,000 GPH) and more responsive traction, particularly for wall climbing and tight corners. The battery capacity is increased to 7,800mAh, delivering up to 210 minutes of runtime per charge.
A key advantage of the S2 is its dual-layer filtration system. The top 180μm mesh traps coarse debris, while a secondary cotton foam layer captures ultra-fine particles like silt and algae. This system results in cleaner, clearer water after every cycle.
Both units effectively clean pool floors, walls, and waterlines, but the S2 performs noticeably better in larger or debris-heavy pools.
Winner: Wybot S2
More powerful suction, longer runtime, and superior dual-layer filtration put the S2 clearly ahead in overall cleaning performance.
Feature Comparison
The Wybot S1 connects to the WYBOT App, offering six cleaning modes including floor-only, wall-only, waterline, and full-cycle operations. It uses infrared detection and gyroscopic correction to guide its navigation in general linear patterns and can auto-park near the wall after completing its cycle. It also supports firmware updates through the app, allowing occasional enhancements.
The Wybot S2 takes these capabilities further. The app includes seven cleaning modes and six intelligent path options, enabling more precise scheduling and more adaptive coverage patterns. These include linear, spiral, or zig-zag pathing, ideal for non-standard pool shapes.
Both models offer IPX8 waterproofing, quick-drain systems, and auto-docking functionality. However, the S2’s brushless motors not only reduce wear and noise but also support smoother movement across slippery tiles and steps.
Additionally, the S2 offers more consistent firmware support, with better long-term update rollout that improves app integration, path planning logic, and real-time status tracking.
Winner: Wybot S2
With more cleaning modes, advanced pathing, smoother movement, and better firmware support, the S2 delivers a richer, smarter experience.
Quick Rundown Of Wybot S1
Quick Rundown Of Wybot S2
Conclusion
Choose Wybot S1 if you want a lightweight, cordless robotic cleaner tailored for in-ground pools with reliable cleaning and basic smart control. It’s ideal for homeowners with standard-size pools looking for great value without advanced complexity.
Choose Wybot S2 if you prefer more power, longer runtime, intelligent pathing, and a superior filtration system. It’s perfect for users who own larger or more complex pools and want higher performance, deeper cleaning, and better app control.
Overall Winner: Wybot S2
Combining extended battery life, dual-layer filtration, triple-motor efficiency, and advanced path mapping, the Wybot S2 is the more capable and future-proof cordless pool cleaner. For those seeking premium automation with unmatched cleaning depth and adaptability, the S2 stands out as the smarter long-term investment.