Aiper Scuba S1 vs Aiper Scuba S3
Both clean the same surfaces. At about $500 and $650, the table below is where the difference in price has to be found.

Aiper
Aiper Scuba S1
~$500
- Pool fit
- ~55 ft180 min on floor and walls at 13 sq ft/min
- Filtration
- 3 µm · fine dust and algae
- Retrieval
- You fish out 17 lb
Aiper's best-known cordless robot is now its entry model, sold since 2026 as the Scuba S1 (2026 Upgrade): 180 minutes on a standard cycle, a gyroscope for straighter lines than random wandering, a 3.5-litre top-load basket with a 3-micron ultra-fine filter beneath the 180-micron one, and a 50-foot rating.
Best for: A mid-size pool and a first robot around $500

Aiper
Aiper Scuba S3
~$650
- Pool fit
- ~55 ft180 min on floor and walls at 13 sq ft/min
- Filtration
- 3 µm · fine dust and algae
- Retrieval
- Parks for pickup · 18 lb
Aiper's S3 pairs the 3-micron ultra-fine layer with waterline parking for retrieval.
Best for: Fine-dust pools on a mid-range budget
| Specification | Aiper Scuba S1 | Aiper Scuba S3 |
|---|---|---|
| Approx. price | ~$500 | ~$650 |
| Type | Cordless floor+wall+waterline | Cordless floor+wall+waterline |
| Power | Cordless | Cordless |
| Cleans | Floor, walls, waterline | Floor, walls, waterline |
| Pool fit | ~55 ft | ~55 ft |
| Maker's pool claim | 50 ft / 1,600 sq ft | 1,614 sq ft |
| Runtime, floor + walls | 180 min | 180 min |
| Runtime, floor only | 240 min | 240 min |
| Charge time | 4 h | 4 h |
| Finest filter | 3 µm | 3 µm |
| Filtration tier | Fine dust and algae | Fine dust and algae |
| Filter | 180 µm basket plus 3 µm ultra-fine filter | 180 µm standard filter plus 3 µm ultra-fine filter |
| Basket | 3.5 L | 3.5 L |
| Weight | 17 lb | 18 lb |
| Retrieval | You fish out 17 lb | Parks for pickup · 18 lb |
| Self-parking | not published | Yes |
| Navigation | Gyroscope | not published |
| App control | Yes | not published |
| Pool types | not published | in-ground |
| Surfaces | concrete, fiberglass, vinyl, tile | concrete, fiberglass, vinyl, tile |
| Warranty | 2 years | 2 years |
| Cost per swim season | $250 floor | $325 floor |
| Released | 2026 | not published |
Aiper Scuba S1: what it gives up
- Aiper's page headlines '270 Min Runtime' without naming a mode, while its own description and compare tables say 180 minutes standard and 240 in ECO
- Scrubs over the waterline but has no sideways WaveLine pass, which the X1 has
- 4,200 gph suction, the lowest flow figure Aiper publishes for a Scuba
Aiper Scuba S3: what it gives up
- No app control listed on its page, where the $500 S1 now has one
- 3.5 L basket fills faster under the ultra-fine layer
- Rated to 1,614 sq ft, three-quarters of the X1's 2,150
Full specifications: Aiper Scuba S1 · Aiper Scuba S3