Help me choose
Our pick: Dolphin Cayman
Dolphin Cayman is the Pool Express pick in this matchup. Dolphin Cayman is listed $20 lower. Dolphin Cayman cleans floor and walls.
Advantage
Dolphin Advantage Ultra
Inground pools up to 50 ft that need floor, wall and waterline cleaning.
Max-Series
Dolphin Cayman
Inground and above-ground pools up to 40 ft that need floor and wall cleaning.
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 Advantage Ultra or Dolphin Cayman: our take
Dolphin Advantage Ultra and Dolphin Cayman 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
Dolphin Advantage Ultra is intended for inground pools, while Dolphin Cayman is intended for inground and above-ground pools. Dolphin Advantage Ultra is rated for pools up to 50 ft; Dolphin Cayman is rated up to 40 ft. Dolphin Advantage Ultra cleans floor, walls, and waterline; Dolphin Cayman cleans floor and walls. Dolphin Cayman's documented cleaning system includes 1 active brush, SmartNav 2.0 navigation, and Dual 24-volt DC motors.
Filtration and debris
Dolphin Advantage Ultra includes Basket; Dolphin Cayman includes MaxBin.
Controls and day-to-day ownership
Both models provide a weekly timer and power-supply controls. Dolphin Advantage Ultra uses a 60 ft corded cable with an anti-tangle swivel, while Dolphin Cayman uses a 50 ft corded cable.
Price, warranty and the decision
Dolphin Advantage Ultra is listed at $1,099 and Dolphin Cayman at $1,079; Dolphin Cayman is $20 less. Each lists a 2-year manufacturer warranty. Pool Express pick: Dolphin Cayman. Dolphin Cayman is listed $20 lower. Dolphin Cayman cleans floor and walls. Choose Dolphin Advantage Ultra 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 Advantage Ultra | Dolphin Cayman |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | YesEdge | No |
| Fine-debris filter included | No | No |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | Yes | Yes |
| Smartphone app | No | No |
| Anti-tangle swivel | YesEdge | No |
| 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 Advantage Ultra stands out
Dolphin Advantage Ultra is the better fit for pools up to 50 ft.
- Cleans the floor, walls and waterline instead of stopping below the tile line
- Uses an anti-tangle swivel cable
- Is rated for pools up to 50 ft
Where Dolphin Cayman stands out
Dolphin Cayman is the better fit for shoppers prioritizing the lower $1,079 starting price.
- Is listed $20 lower
- Cleans floor and walls
Dolphin Advantage Ultra vs Dolphin Cayman 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 Advantage Ultra | Dolphin Cayman |
|---|---|---|
| Best fit | Inground pools up to 50 ft that need floor, wall and waterline cleaning. | Inground and above-ground pools up to 40 ft that need floor and wall cleaning. |
| Starting price | $1,099 | $1,079 |
| Pool type | Inground | Inground, Above-ground |
| Maximum pool length | Up to 50 ft | Up to 40 ft |
| Cleaning coverage | Floor, Walls, Waterline | Floor, Walls |
| Power | Corded | Corded |
| Filtration | Basket | MaxBin |
| Scheduling | Weekly schedule | Weekly schedule |
| App and remote | Power-supply controls | Power-supply controls |
| Cable | 60 ft with anti-tangle swivel | 50 ft |
| Robot weight | Not listed | 14.6 lb |
| Warranty | 2 years | 2 years |
Choose Dolphin Cayman
Dolphin Cayman is the Pool Express pick in this matchup. Dolphin Cayman is listed $20 lower. Dolphin Cayman cleans floor and walls.
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