Aiper Scuba S1
#14 in CordlessFull review
A low-cost cordless robot for small-to-mid-size pools up to about 1,600 sq ft that need floor, wall and waterline cleaning. Owners of larger pools should look at the Scuba X1.
Aiper $529.99$529.99
The Aiper Scuba S1 is the better robotic pool cleaner overall, rated 4.1 to 3.3. The Aiper Scuba S1 leads on cleaning. The Winny S1103K wins on value. The Winny S1103K costs $330 less ($199.99 vs $529.99).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Winny S1103K
#40 in CordlessFull review
A floor-only robot for large flat above-ground pools that want daily runs. Wall cleaning still means a brush.
Amazon $199.99$199.99
Which should you buy?
- Choose the Aiper Scuba S1 for cleaning (Floor, walls and waterline vs Floor only).
- Choose the Winny S1103K for value ($200 vs $530).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every cordless robotic pool cleaner; a clear win is highlighted. How we rank explains each one.
| Factor weight | Aiper Scuba S1 | Winny S1103K |
|---|---|---|
| Overall rating | 4.1/5 | 3.3/5 |
| Value 25% | 67 $530 | 100 $200 |
| Cleaning 25% | 85 Floor, walls and waterline | 20 Floor only |
| Navigation 15% | 50 Gyroscope + sensors | 50 navigation not published (neutral score used) |
| Warranty 15% | 50 2-year warranty | 0 warranty not published, scored as none |
| Pool size 10% | 100 pools up to 1,600 sq ft | 100 pools up to 1,350 sq ft |
| Features 10% | 100 2 of 2 | 33 1 of 3; no app control, easy pickup |
Specifications
| Aiper Scuba S1 | Winny S1103K | |
|---|---|---|
| Pool | ||
| Pool size (rated) | Up to 1,600 sq ft (150 m²), 50 ft long | Up to 1,350 sq ft (125 m²) |
| Pool types | In-ground and above-ground | Above-ground |
| Surfaces | Concrete, fiberglass, vinyl, tile | - |
| Cleaning | ||
| Cleans | Floor, walls and waterline | Floor only |
| Surface skimming | No | No |
| Filter | Top-load 3.5 L basket with 180 µm standard filter and a 3 µm ultra-fine filter | 185 µm filter basket |
| Filter capacity | 3.5 L | - |
| Water flow | 4,200 gal/h | - |
| Power | ||
| Power | Cordless (battery) | Cordless (battery) |
| Battery | - | 73.3 Wh, 6,600 mAh |
| Run time | Up to 4 h 30 min | Up to 2 h 15 min |
| Charge time | 4 h | - |
| Charging | Cable | - |
| Navigation & app | ||
| Navigation | Gyroscope + sensors | - |
| App | Yes | No |
| Scheduling | Yes | Yes |
| Retrieval | - | Parks at the pool wall when the battery runs low or the cycle ends |
| Build | ||
| Weight | 17 lb (7.7 kg) | 12.1 lb (5.5 kg) |
| Warranty | 2 years | - |
| Released | 2024-01 | - |