Aiper Scuba S1 vs Dolphin (Maytronics) Cayman
Researched by Riley Hart · prices checked Nov 4, 2026
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. The Aiper Scuba S1 wins 3 of 4 points we can measure (1 tied).
Who wins, point by point
The Aiper Scuba S1 wins 3 of 4 points we can measure (1 tied). Built from today's prices, the specs and independent tests for these two robots.
| Scuba S1 | Cayman | Winner | |
|---|---|---|---|
| Price today | $498 | $1,129 | Scuba S1 |
| 3 year cost | $498 | $1,169 | Scuba S1 |
| Runtime | 150 min | 2 h | Scuba S1 |
| Warranty | 2 years | 2 years | Tie |
- You want to spend less (saves $631)
- You care most about runtime (150 min vs 2 h)
- Best for cordless cleaning on a tight budget
- Best for small pools on a budget
- Cleans
- Floor
- Runtime
- Up to 150 min
- Max pool
- Up to 1,600 sq ft
Budget cordless cleaner for floors, walls and waterline
Full Aiper Scuba S1 review, pros and cons →- Cleans
- Floor and walls
- Power
- Corded
- Runtime
- 2 h cycle
- Max pool
- 40 ft long
Value corded Dolphin with weekly timer for small and midsize pools
Full Dolphin (Maytronics) Cayman review, pros and cons →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 |
Specs are maker claims unless a reviewer is named. Prices from the stores we link, checked daily.
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
- 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
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
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.
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