Help me choose
Our pick: Dolphin Cayman
Dolphin Cayman is the Pool Express pick in this matchup. Dolphin Cayman adds wall climbing and scrubbing. Dolphin Cayman can start on a weekly schedule without a manual launch before every cycle.
Max-Series
Dolphin Cayman
Inground and above-ground pools up to 40 ft that need floor and wall cleaning.
Niya Tracker
Niya Tracker 15
Above-ground pools up to 20 ft that need the floor vacuumed without a cord.
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 Niya Tracker 15: our take
Dolphin Cayman and Niya Tracker 15 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 Cayman is intended for inground and above-ground pools, while Niya Tracker 15 is intended for above-ground pools. Dolphin Cayman is rated for pools up to 40 ft; Niya Tracker 15 is rated up to 20 ft. Dolphin Cayman cleans floor and walls; Niya Tracker 15 cleans floor. Dolphin Cayman's documented cleaning system includes 1 active brush, SmartNav 2.0 navigation, and Dual 24-volt DC motors.
Filtration and debris
Dolphin Cayman includes MaxBin; Niya Tracker 15 includes Basket.
Controls and day-to-day ownership
Dolphin Cayman provides a weekly timer and power-supply controls; Niya Tracker 15 provides one-touch starts and power-supply controls. Dolphin Cayman uses a 50 ft corded cable, while Niya Tracker 15 uses cordless battery power. Dolphin Cayman is listed at 14.6 lb versus 7.1 lb for Niya Tracker 15; that 7.5 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Dolphin Cayman is listed at $1,079 and Niya Tracker 15 at $199; Niya Tracker 15 is $880 less. Dolphin Cayman lists a 2-year warranty compared with 1 years for Niya Tracker 15. Pool Express pick: Dolphin Cayman. Dolphin Cayman adds wall climbing and scrubbing. Dolphin Cayman can start on a weekly schedule without a manual launch before every cycle. Choose Niya Tracker 15 when it is the better fit for shoppers prioritizing the lower $199 starting price.
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 | Niya Tracker 15 |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | YesEdge | No |
| Scrubs the waterline | No | No |
| Fine-debris filter included | No | No |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | YesEdge | No |
| Smartphone app | No | No |
| Anti-tangle swivel | No | Not listed |
| 3-year warranty | No | No |
| No recharging between cycles | YesEdge | No |
| 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 pools up to 40 ft.
- Adds wall climbing and scrubbing
- Can start on a weekly schedule without a manual launch before every cycle
- Carries a 2-year warranty instead of 1 years
- Is rated for pools up to 40 ft
Where Niya Tracker 15 stands out
Niya Tracker 15 is the better fit for shoppers prioritizing the lower $199 starting price.
- Is listed $880 lower
- Weighs 7.1 lb versus 14.6 lb
Dolphin Cayman vs Niya Tracker 15 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 | Niya Tracker 15 |
|---|---|---|
| Best fit | Inground and above-ground pools up to 40 ft that need floor and wall cleaning. | Above-ground pools up to 20 ft that need the floor vacuumed without a cord. |
| Starting price | $1,079 | $199 |
| Pool type | Inground, Above-ground | Above-ground |
| Maximum pool length | Up to 40 ft | Up to 20 ft |
| Cleaning coverage | Floor, Walls | Floor |
| Power | Corded | Cordless |
| Filtration | MaxBin | Basket |
| Scheduling | Weekly schedule | One-touch start |
| App and remote | Power-supply controls | Power-supply controls |
| Cable | 50 ft | Cordless |
| Robot weight | 14.6 lb | 7.1 lb |
| Warranty | 2 years | 1 years |
Choose Dolphin Cayman
Dolphin Cayman is the Pool Express pick in this matchup. Dolphin Cayman adds wall climbing and scrubbing. Dolphin Cayman can start on a weekly schedule without a manual launch before every cycle.
More robotic pool cleaner comparisons
Keep comparing without rebuilding the same specification table yourself.
Clear UV vs Clear S
Pool Express pick: Clear UV
Dolphin Quantum vs Clear S
Pool Express pick: Dolphin Quantum
Dolphin Premier vs Dolphin Sigma
Pool Express pick: Dolphin Premier
Dolphin Premier vs Dolphin Quantum
Pool Express pick: Dolphin Quantum
Dolphin Sigma vs Dolphin Quantum
Pool Express pick: Dolphin Quantum
Dolphin Cayman vs Dolphin Escape
Pool Express pick: Dolphin Cayman