Help me choose
Our pick: Dolphin Cayman
Dolphin Cayman is the Pool Express pick in this matchup. Dolphin Cayman is listed $200 lower. Dolphin Cayman weighs 14.6 lb versus 18.4 lb.
Max-Series
Dolphin Cayman
Inground and above-ground pools up to 40 ft that need floor and wall cleaning.
Premium
Dolphin Premium 30
Inground and above-ground pools up to 50 ft that need floor, wall and waterline cleaning on a weekly timer.
Why Dolphin Cayman is our pick
Dolphin Cayman
Inground and above-ground pools up to 40 ft that need floor and wall cleaning.
$1,079
Buy Dolphin CaymanDolphin Cayman or Dolphin Premium 30: our take
Dolphin Cayman and Dolphin Premium 30 are compared on pool fit, cleaning reach, debris handling, controls and ownership details. The recommendation is based on the job the robot must do—not a simple feature count.
Pool fit and cleaning reach
Both robots are intended for inground and above-ground pools. Dolphin Cayman is rated for pools up to 40 ft; Dolphin Premium 30 is rated up to 50 ft. Dolphin Cayman cleans floor and walls; Dolphin Premium 30 cleans floor, walls, and waterline. Dolphin Cayman lists 1 active brush, SmartNav 2.0 navigation, and Dual 24-volt DC motors. Dolphin Premium 30 lists 2 active brushes and CleverClean navigation.
Filtration and debris
Dolphin Cayman includes MaxBin; Dolphin Premium 30 includes Basket and UltraFilter. Dolphin Premium 30 has the clearer documented edge for fine silt, pollen and sand.
Controls and day-to-day ownership
Both models provide a weekly timer and power-supply controls. Dolphin Cayman uses a 50 ft corded cable, while Dolphin Premium 30 uses continuous corded power. Dolphin Cayman is listed at 14.6 lb versus 18.4 lb for Dolphin Premium 30; that 3.799999999999999 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Dolphin Cayman is listed at $1,079 and Dolphin Premium 30 at $1,279; Dolphin Cayman is $200 less. Each lists a 2-year manufacturer warranty. Pool Express pick: Dolphin Cayman. Dolphin Cayman is listed $200 lower. Dolphin Cayman weighs 14.6 lb versus 18.4 lb. Choose Dolphin Premium 30 when it is the better fit for pools up to 50 ft.
Feature check: what each robot actually has
A green check means the feature is documented as included. A red X means it is documented as absent. A dash means the source does not make the feature clear.
| Feature | Dolphin Cayman | Dolphin Premium 30 |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | No | YesEdge |
| Fine-debris filter included | No | YesEdge |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | Yes | Yes |
| Smartphone app | No | No |
| Anti-tangle swivel | No | YesEdge |
| 3-year warranty | No | No |
| No recharging between cycles | Yes | Yes |
| Built-in UV-C water treatment | No | No |
Unknown is not treated as “no.” Specifications come from the product pages, current catalog records and manufacturer material collected for this site.
Where Dolphin Cayman stands out
Dolphin Cayman is the better fit for shoppers prioritizing the lower $1,079 starting price.
- Is listed $200 lower
- Weighs 14.6 lb versus 18.4 lb
Where Dolphin Premium 30 stands out
Dolphin Premium 30 is the better fit for pools up to 50 ft.
- Cleans the floor, walls and waterline instead of stopping below the tile line
- Includes filtration for sand, pollen and other fine debris
- Uses 2 active brushes instead of 1
- Uses an anti-tangle swivel cable
Dolphin Cayman vs Dolphin Premium 30 specifications
Use pool fit first. Price and app control do not make up for a robot that cannot cover the length or surfaces you need cleaned.
| Specification | Dolphin Cayman | Dolphin Premium 30 |
|---|---|---|
| Best fit | Inground and above-ground pools up to 40 ft that need floor and wall cleaning. | Inground and above-ground pools up to 50 ft that need floor, wall and waterline cleaning on a weekly timer. |
| Starting price | $1,079 | $1,279 |
| Pool type | Inground, Above-ground | Inground, Above-ground |
| Maximum pool length | Up to 40 ft | Up to 50 ft |
| Cleaning coverage | Floor, Walls | Floor, Walls, Waterline |
| Power | Corded | Corded |
| Filtration | MaxBin | Basket, UltraFilter |
| Scheduling | Weekly schedule | Weekly schedule |
| App and remote | Power-supply controls | Power-supply controls |
| Cable | 50 ft | Not listed |
| Robot weight | 14.6 lb | 18.4 lb |
| Warranty | 2 years | 2 years |
Choose Dolphin Cayman
Dolphin Cayman is the Pool Express pick in this matchup. Dolphin Cayman is listed $200 lower. Dolphin Cayman weighs 14.6 lb versus 18.4 lb.
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