Help me choose
A stronger Pool Express option
Dolphin Triton PS and Niya Tracker 55 are compared feature by feature below. For a stronger Pool Express option, consider Dolphin Quantum. Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
Triton
Dolphin Triton PS
Inground pools up to 50 ft that need floor, wall and waterline cleaning.
Niya Tracker
Niya Tracker 55
Inground and above-ground pools up to 40 ft that need floor, wall and waterline cleaning without a cord, with app-selected modes.
What we recommend instead
Dolphin Quantum
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
$1,649
Buy Dolphin QuantumDolphin Triton PS or Niya Tracker 55: our take
Dolphin Triton PS and Niya Tracker 55 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 Triton PS is intended for inground pools, while Niya Tracker 55 is intended for inground and above-ground pools. Dolphin Triton PS is rated for pools up to 50 ft; Niya Tracker 55 is rated up to 40 ft. Each cleans floor, walls, and waterline, so coverage alone does not separate them. Dolphin Triton PS lists 1 active brush. Niya Tracker 55 lists 2 active brushes, Sonar navigation, and Dual drive motors.
Filtration and debris
Both models include Basket.
Controls and day-to-day ownership
Dolphin Triton PS provides a weekly timer and power-supply controls; Niya Tracker 55 provides one-touch starts and smartphone control. Dolphin Triton PS uses a 60 ft corded cable with an anti-tangle swivel, while Niya Tracker 55 uses cordless battery power.
Price, warranty and the decision
Dolphin Triton PS is listed at $1,099 and Niya Tracker 55 at $779; Niya Tracker 55 is $320 less. Dolphin Triton PS lists a 2-year warranty compared with 1.5 years for Niya Tracker 55. Dolphin Triton PS and Niya Tracker 55 each have a specific fit, but neither is the Pool Express pick for this job. Our better alternative is Dolphin Quantum. Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
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 Triton PS | Niya Tracker 55 |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | Yes | Yes |
| Fine-debris filter included | No | No |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | YesEdge | No |
| Smartphone app | No | YesEdge |
| Anti-tangle swivel | Yes | 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 Triton PS stands out
Dolphin Triton PS is the better fit for pools up to 50 ft.
- Can start on a weekly schedule without a manual launch before every cycle
- Carries a 2-year warranty instead of 1.5 years
- Is rated for pools up to 50 ft
- Runs from continuous plug-in power without a recharge between cycles
Where Niya Tracker 55 stands out
Niya Tracker 55 is the better fit for shoppers prioritizing the lower $779 starting price.
- Uses 2 active brushes instead of 1
- Adds smartphone control
- Is listed $320 lower
Dolphin Triton PS vs Niya Tracker 55 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 Triton PS | Niya Tracker 55 |
|---|---|---|
| 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, wall and waterline cleaning without a cord, with app-selected modes. |
| Starting price | $1,099 | $779 |
| Pool type | Inground | Inground, Above-ground |
| Maximum pool length | Up to 50 ft | Up to 40 ft |
| Cleaning coverage | Floor, Walls, Waterline | Floor, Walls, Waterline |
| Power | Corded | Cordless |
| Filtration | Basket | Basket |
| Scheduling | Weekly schedule | One-touch start |
| App and remote | Power-supply controls | App control |
| Cable | 60 ft with anti-tangle swivel | Cordless |
| Robot weight | Not listed | 19.8 lb |
| Warranty | 2 years | 1.5 years |
Consider the stronger Pool Express option
Dolphin Triton PS and Niya Tracker 55 are compared feature by feature below. For a stronger Pool Express option, consider Dolphin Quantum. Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
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