Help me choose
A stronger Pool Express option
Dolphin Premium 10 and Dolphin S300 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.
Premium
Dolphin Premium 10
Above-ground and small inground pools up to 30 ft that need the floor vacuumed.
S-Line
Dolphin S300
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
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 Premium 10 or Dolphin S300: our take
Dolphin Premium 10 and Dolphin S300 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 Premium 10 is intended for inground and above-ground pools, while Dolphin S300 is intended for inground pools. Dolphin Premium 10 is rated for pools up to 30 ft; Dolphin S300 is rated up to 50 ft. Dolphin Premium 10 cleans floor; Dolphin S300 cleans floor, walls, and waterline. Dolphin Premium 10 lists 1 active brush and CleverClean navigation. Dolphin S300 lists 2 active brushes and CleverClean navigation.
Filtration and debris
Dolphin Premium 10 includes Basket; Dolphin S300 includes Basket and UltraFilter. Dolphin S300 has the clearer documented edge for fine silt, pollen and sand.
Controls and day-to-day ownership
Dolphin Premium 10 provides one-touch starts and power-supply controls; Dolphin S300 provides a weekly timer and smartphone control. Dolphin Premium 10 uses continuous corded power, while Dolphin S300 uses a 60 ft corded cable with an anti-tangle swivel.
Price, warranty and the decision
Dolphin Premium 10 is listed at $719 and Dolphin S300 at $1,499; Dolphin Premium 10 is $780 less. Each lists a 2-year manufacturer warranty. Dolphin Premium 10 and Dolphin S300 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 Premium 10 | Dolphin S300 |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | No | YesEdge |
| Scrubs the waterline | No | YesEdge |
| Fine-debris filter included | No | YesEdge |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | No | YesEdge |
| Smartphone app | No | YesEdge |
| 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 Premium 10 stands out
Dolphin Premium 10 is the better fit for shoppers prioritizing the lower $719 starting price.
- Is listed $780 lower
- Cleans the pool floor
Where Dolphin S300 stands out
Dolphin S300 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
- Can start on a weekly schedule without a manual launch before every cycle
Dolphin Premium 10 vs Dolphin S300 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 Premium 10 | Dolphin S300 |
|---|---|---|
| Best fit | Above-ground and small inground pools up to 30 ft that need the floor vacuumed. | Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris. |
| Starting price | $719 | $1,499 |
| Pool type | Inground, 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, UltraFilter |
| Scheduling | One-touch start | Weekly schedule + app |
| App and remote | Power-supply controls | App control |
| Cable | Not listed | 60 ft with anti-tangle swivel |
| Robot weight | 14.6 lb | Not listed |
| Warranty | 2 years | 2 years |
Consider the stronger Pool Express option
Dolphin Premium 10 and Dolphin S300 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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