# Aiper Scuba S1 vs Dolphin (Maytronics) Cayman

As of Nov 4, 2026, the Aiper Scuba S1 costs $498 and the Dolphin (Maytronics) Cayman costs $1,129, so the Aiper Scuba S1 is $631 cheaper. Pick the Aiper Scuba S1 for cordless cleaning on a tight budget. Pick the Dolphin (Maytronics) Cayman for small pools on a budget.

Prices checked Nov 4, 2026. HTML version: https://robotsforthat.com/vs/aiper-scuba-s1-vs-dolphin-cayman/

## Side by side

| | Aiper Scuba S1 | Dolphin (Maytronics) Cayman |
|---|---|---|
| Price | $498 | $1,129 |
| 3 year cost | $498 | $1,169 |
| Our score | Not scored yet | Not scored yet |
| Rank in Pool | #21 | #30 |
| Status | on sale | on sale |
| Warranty | 2 years | 2 years |
| Pool types | In-ground | In-ground and above-ground; rectangular, round, free form, kidney |
| Cleans | Floor, walls and waterline; no surface skimming | Floor and walls; Maytronics lists no waterline scrubbing |
| Power | Cordless (battery capacity not published) | Corded |
| Runtime | Up to 150 min | Default 2 h cycle; no battery |
| Charge time | 3 to 4 h per Reviewed | None (corded) |
| Filter | 3.5 L filter basket per Reviewed | Top load fine filter basket; ultra fine baskets and panels sold separately |
| Max pool size | Up to 1,600 sq ft per Reviewed | Pools up to 40 ft long |
| App | None; button selects floor, wall, auto and eco modes | None |
| Warranty | 2 years | 2 years |
| Timer | n/a | Weekly timer |
| Weight | n/a | 14.619 lb |
| Best for | cordless cleaning on a tight budget | small pools on a budget |
| Skip if | your pool gets heavy leaf fall | your pool is longer than 40 ft |

## What reviewers found

### Aiper Scuba S1

- Reviewed: In a roughly 1,200 sq ft pool it climbed walls well and covered most of the pool, but left leaves behind and needed four cycles for a spotless pool; drying the charging port was a chore. [Source](https://reviewed.com/home-outdoors/content/aiper-scuba-s1-robotic-pool-cleaner-review)
- The Smart Home Hookup: Ran 3 h 56 min against 150 min listed with about 95% wall and floor coverage, the best in the group, but its rear suction stirred up leaves. [Source](https://www.thesmarthomehookup.com/?p=5626)

### Dolphin (Maytronics) Cayman

- The Pool Nerd: Rated it best value; praised the weekly timer, corded consistency and top load MaxBin, noted it lacks an anti tangle swivel. Affiliate site with links to Dolphin dealers. [Source](https://www.thepoolnerd.com/dolphin-cayman-review)

## Questions buyers ask

### Which is better, the Aiper Scuba S1 or the Dolphin (Maytronics) Cayman?

Pick the Aiper Scuba S1 for cordless cleaning on a tight budget. Pick the Dolphin (Maytronics) Cayman for small pools on a budget.

### Which is cheaper?

The Aiper Scuba S1 at $498, versus $1,129 for the Dolphin (Maytronics) Cayman, checked Nov 4, 2026. Over 3 years with running costs: $498 vs $1,169.

### What is the difference between the Scuba S1 and the Cayman?

Pool types: In-ground on the Scuba S1, In-ground and above-ground; rectangular, round, free form, kidney on the Cayman. Cleans: Floor, walls and waterline; no surface skimming on the Scuba S1, Floor and walls; Maytronics lists no waterline scrubbing on the Cayman. Power: Cordless (battery capacity not published) on the Scuba S1, Corded on the Cayman.

Full reviews: [Aiper Scuba S1](https://robotsforthat.com/robot/aiper-scuba-s1/index.md), [Dolphin (Maytronics) Cayman](https://robotsforthat.com/robot/dolphin-cayman/index.md)