# Wybot S3 review

Cordless robot that docks, charges and empties itself underwater

- Our score: 6.0 out of 10
- Price: $3,000 (checked Nov 3, 2026)
- Status: on sale
- Best for: hands off cleaning of large in-ground pools
- Skip if: you have a small pool or a tight budget
- HTML version: https://robotsforthat.com/robot/wybot-s3/

## Verdict

For owners who never want to lift a robot out of the pool or empty a basket every run: the S3 parks, charges and dumps debris into a dock bin by itself. Reviewers found it cleaned floors, walls and the waterline well, but setup takes work and the dock needs a fixed spot with enough room to approach. Skip it if you have a small pool or a normal budget.

## Pros

- Docks, charges and self empties underwater
- Cleans floor, walls, steps and waterline
- Dock bin lasts up to about a month (Wybot)
- Solar, DC or AC charging options

## Cons

- $2,999.99 at Wybot's own store
- Setup means getting in the pool to fit the dock
- Docking failed in shallow or cramped spots in testing
- Fine filters still need hosing about every two weeks

## Specs

- pool types: In-ground pools of PVC, tile, gunite or concrete, 50 cm to 3 m deep (about 1.6 to 9.8 ft); not for pools under 20 sq m or soft sided pools (Smart Home Fox, citing Wybot)
- cleans: Floor, walls, steps and waterline. Wybot lists floor, walls and stairs; GadgetGuy saw it rise above the waterline on wall runs. No surface skimming listed
- power: Cordless, 7,800 mAh battery (Smart Home Fox); recharges in its underwater dock from AC, DC or a solar kit of up to 30 W
- runtime: Up to 2.5 h per GadgetGuy; Smart Home Fox reports about 3 h
- charge time: About 3 h on mains or DC (GadgetGuy, Smart Home Fox). GadgetGuy says solar alone needs about three days of full sun to recharge base and robot for weekly cleaning
- filter: 180 µm filter box plus 40 PPI sponge; 380 µm and 180 µm plates and a 10 µm ultra fine filter in the box (Wybot). 3 L robot basket empties into a 10 L dock bin (GadgetGuy); fine filters must be hosed out about every two weeks
- max pool size: Up to 300 sq m, about 3,230 sq ft (maker rating cited by GadgetGuy and Smart Home Fox); Wybot's US page lists no maximum
- app: Wybot app: 3D pool map, AI vision debris detection, manual drive, 7 day scheduling; the underwater link runs through the dock (GadgetGuy)
- navigation: 36 sensors plus AI camera, about 10 cm positioning accuracy (Smart Home Fox)
- weight: Robot 9.6 kg (about 21 lb), dock 5.6 kg (about 12 lb) per Smart Home Fox; GadgetGuy lists 21 kg and 76 x 48 x 74 cm, which looks like the full boxed set
- warranty: 2 years (Wybot)

## Safety

- recalls: No CPSC recall found for the Wybot S3 as of 2026-11-03 (web search of cpsc.gov recall listings; the CPSC database could not be queried directly from our tools, recheck before publishing). Wybot recall 26-372 (April 2026) covers the Osprey 700 Max and S1 only, not the S3.
- fcc: Not checked
- company status: Active
- warranty: 2 years, 30 day money back

## Questions buyers ask

### Do I still need to empty the robot?

Not after each run. The robot dumps its 3 L basket into a 10 L dock bin, which Wybot says lasts up to about 30 days. The finer filters still need hosing out about every two weeks, per GadgetGuy.

### Does it need an outlet by the pool?

It can charge from a solar kit, DC or AC. GadgetGuy found solar alone needs about three days of full sun between weekly cleans, and Android Authority notes the dock wants AC access for best results.

### How big a pool can it clean?

The maker rating cited by reviewers is up to 300 sq m, about 3,230 sq ft. Wybot's US product page does not list a maximum.

## Sources

1. [Wybot S3 product page (US store)](https://www.wybotpool.com/products/wybot-s3-robotic-pool-cleaner)
2. [Android Authority: WYBOT S3 hands-on](https://androidauthority.com/wybot-s3-hands-on-impressions-3674143)
3. [GadgetGuy: Wybot S3 robot pool cleaner review](https://www.gadgetguy.com.au/wybot-s3-robot-pool-cleaner-review/)
4. [Smart Home Fox: WYBOT S3 Poolroboter (spec overview, German)](https://www.smart-home-fox.de/wybot-s3-poolroboter-test)