The WYBOT S3 is a cordless robotic pool cleaner that does more than scrub the floor: when a cycle ends, it drives back to a dock, dumps its debris into a bin on the pool deck and recharges itself. WYBOT first showed it at CES 2025 as a self docking, self emptying, automatic charging pool robot. Here is what the official specs say, what it costs in the US in October 2026, how the self emptying system works, and which alternatives to consider.
What the WYBOT S3 is
Most robotic pool cleaners leave you with two recurring jobs. You have to lift the robot out to charge it, and you have to open it up and rinse a dirty filter basket after every run or two. The S3 is designed to remove both steps. It runs without a cable, maps the pool, cleans, then parks itself at a dock where the debris is transferred out and the battery is topped up for the next scheduled cycle.
WYBOT announced a $2,999 price at its CES 2025 debut. In October 2026 the official US product page shows $2,499.99 with the $2,999.99 figure crossed out, and lists the robot as out of stock, so check availability before planning around it.
How the self emptying dock works
- Clean: the robot collects debris in its own 3 liter bin while it works the floor and walls.
- Return: when the cycle ends or the battery runs low, it drives back to its dock on its own.
- Transfer: the dock moves the debris from the robot into a 10 liter bin that sits above ground on the deck. WYBOT describes this bin as self sanitizing with built in filtration.
- Charge: the dock recharges the robot so it is ready for the next run.
WYBOT says the shore bin can hold up to 30 days of debris, or about eight full cleanings, before you need to empty it. Real intervals will depend on how many leaves and how much dirt your pool collects. The dock supports solar assisted charging as well as regular DC power, and WYBOT notes that solar alone gives limited runtime: its FAQ says about three full days of direct sunlight yield roughly 2.5 hours of cleaning.
Official WYBOT S3 specs
| Feature | WYBOT S3 |
|---|---|
| US price | $2,499.99 (was $2,999.99) |
| Onboard bin | 3 liters |
| Shore bin | 10 liters, self sanitizing, built in filtration |
| Navigation | 3D mapping on the first run, camera based AI debris detection |
| Cleaning modes | Floor and wall modes plus an AI Vision mode for floors |
| Filtration | 180 micron filter box with sponge, extra 380, 180 and 10 micron plates included |
| Pool size | Recommended for pools up to 15 meters (about 49 feet) long |
| Charging | Automatic at the dock, solar assisted or DC power |
| App | iOS 17 or later, Android 8 or later; scheduling, tracking, remote control |
| Warranty | 2 years, plus a 30 day money back guarantee |
WYBOT says map guided cleaning can be up to 20 times faster than standard cleaning. That is a company claim, not an independent measurement. Waterline scrubbing is not listed among the S3’s modes, so if a scum line at the tile is your main problem, compare carefully.
WYBOT S3 alternatives
Listed at $3,999 in the US. Its AstroRinse station cleans the filter and empties debris in about three minutes, with a 22 liter basket that Beatbot says can last up to two months. It also cleans waterlines and the water surface, but the station needs a water supply hose and a drain.
Cordless robots announced at CES 2026, from the compact Scuba V3 to the Scuba V3 Ultra, which covers floor, walls, waterline and surface. You still empty the filter by hand. Check Aiper’s US store for current pricing.
Aiper also showed a robot with an onshore station for self cleaning and self recharging at CES 2026, but did not announce a price or release date.
Put simply, the S3 is the cheaper of the two self emptying options with confirmed US prices, while the Beatbot adds surface and waterline cleaning at a higher cost. A conventional cordless robot costs less but brings back the basket rinsing chore.
Who should buy it
- Good fit: owners of pools up to about 49 feet long who want to schedule cleanings and rarely touch the robot.
- Good fit: pools that collect lots of fine debris, where daily runs keep the water clearer.
- Think twice: if you need waterline scrubbing, have no good spot for the dock, or want to spend under $1,500.
FAQ
How does the WYBOT S3 empty itself?
After each cycle it returns to its dock, which transfers debris from the robot’s 3 liter bin into a 10 liter bin on the pool deck and then recharges the robot.
How much does the WYBOT S3 cost?
WYBOT’s US store lists it at $2,499.99, down from $2,999.99, though it showed as out of stock in October 2026.
How often do you need to empty the dock?
WYBOT says up to 30 days or about eight full cleanings, depending on how much debris your pool collects.
Does the WYBOT S3 clean the waterline?
Waterline cleaning is not listed among its official modes. It focuses on floors and walls, with an AI Vision mode for floors.
The verdict
The WYBOT S3 tackles the two most annoying parts of owning a pool robot, charging and emptying, with a dock that handles both. At $2,499.99 it is expensive but cheaper than the Beatbot AquaSense X. Buy it if you value fewer chores above everything else and can place the dock well; choose a Beatbot or a conventional Aiper if waterline cleaning or price matters more.
Updated October 2026: rewritten as an overview and buyer guide with official specs, current US pricing, how the self emptying dock works and alternatives from Beatbot and Aiper.
Featured photo: Wes Fischer on Unsplash.
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