Help me choose
A stronger Pool Express option
Dolphin S50 and Dolphin Triton PS Plus are compared feature by feature below. For a stronger Pool Express option, consider Dolphin Cayman. Inground and above-ground pools up to 40 ft that need floor and wall cleaning.
Triton
Dolphin Triton PS Plus
Inground pools up to 50 ft that need floor, wall and waterline cleaning.
What we recommend instead
Dolphin Cayman
Inground and above-ground pools up to 40 ft that need floor and wall cleaning.
$1,079
Buy Dolphin CaymanDolphin S50 or Dolphin Triton PS Plus: our take
Dolphin S50 and Dolphin Triton PS Plus 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 S50 is intended for above-ground pools, while Dolphin Triton PS Plus is intended for inground pools. Dolphin S50 is rated for pools up to 30 ft; Dolphin Triton PS Plus is rated up to 50 ft. Dolphin S50 cleans floor; Dolphin Triton PS Plus cleans floor, walls, and waterline. Dolphin S50 lists 1 active brush. Dolphin Triton PS Plus lists 2 active brushes and CleverClean navigation.
Filtration and debris
Both models include Basket.
Controls and day-to-day ownership
Dolphin S50 provides one-touch starts and power-supply controls; Dolphin Triton PS Plus provides a weekly timer and smartphone control. Dolphin S50 uses a 40 ft corded cable, while Dolphin Triton PS Plus uses a 60 ft corded cable with an anti-tangle swivel.
Price, warranty and the decision
Dolphin S50 is listed at $649 and Dolphin Triton PS Plus at $1,199; Dolphin S50 is $550 less. Each lists a 2-year manufacturer warranty. Dolphin S50 and Dolphin Triton PS Plus each have a specific fit, but neither is the Pool Express pick for this job. Our better alternative is Dolphin Cayman. Inground and above-ground pools up to 40 ft that need floor and wall cleaning.
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 S50 | Dolphin Triton PS Plus |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | No | YesEdge |
| Scrubs the waterline | No | YesEdge |
| Fine-debris filter included | No | No |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | No | YesEdge |
| Smartphone app | No | YesEdge |
| Anti-tangle swivel | Not listed | Yes |
| 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 S50 stands out
Dolphin S50 is the better fit for shoppers prioritizing the lower $649 starting price.
- Is listed $550 lower
- Cleans the pool floor
Where Dolphin Triton PS Plus stands out
Dolphin Triton PS Plus is the better fit for pools up to 50 ft.
- Cleans the floor, walls and waterline instead of stopping below the tile line
- Uses 2 active brushes instead of 1
- Can start on a weekly schedule without a manual launch before every cycle
- Adds smartphone control
Dolphin S50 vs Dolphin Triton PS Plus 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 S50 | Dolphin Triton PS Plus |
|---|---|---|
| Best fit | Above-ground pools up to 30 ft that need floor cleaning. | Inground pools up to 50 ft that need floor, wall and waterline cleaning. |
| Starting price | $649 | $1,199 |
| Pool type | Above-ground | Inground |
| Maximum pool length | Up to 30 ft | Up to 50 ft |
| Cleaning coverage | Floor | Floor, Walls, Waterline |
| Power | Corded | Corded |
| Filtration | Basket | Basket |
| Scheduling | One-touch start | Weekly schedule + app |
| App and remote | Power-supply controls | App control |
| Cable | 40 ft | 60 ft with anti-tangle swivel |
| Robot weight | 14 lb | Not listed |
| Warranty | 2 years | 2 years |
Consider the stronger Pool Express option
Dolphin S50 and Dolphin Triton PS Plus are compared feature by feature below. For a stronger Pool Express option, consider Dolphin Cayman. Inground and above-ground pools up to 40 ft that need floor and wall cleaning.
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