Help me choose
A stronger Pool Express option
Dolphin S100 and Polaris 9300 Sport Pool Cleaner F9300 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.
S-Line
Dolphin S100
Inground and above-ground pools up to 33 ft that need floor and wall cleaning, with fine debris.
Polaris
Polaris 9300 Sport Pool Cleaner F9300
Pools that need floor cleaning.
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 S100 or Polaris 9300 Sport Pool Cleaner F9300: our take
Dolphin S100 and Polaris 9300 Sport Pool Cleaner F9300 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 S100 has a published maximum pool length of 33 ft; the other model does not have a verified length in our source material. Dolphin S100 cleans floor and walls; Polaris 9300 Sport Pool Cleaner F9300 cleans floor. Dolphin S100's documented cleaning system includes 1 active brush.
Filtration and debris
Dolphin S100 has documented included filtration—Basket and UltraFilter—while the other model's included media is not fully published. That gives Dolphin S100 the clearer documented edge for fine silt, pollen and sand. Dolphin S100 also has the better documented path for bulky leaves and larger debris.
Controls and day-to-day ownership
Dolphin S100 provides a weekly timer and power-supply controls; Polaris 9300 Sport Pool Cleaner F9300 provides daily scheduling. Dolphin S100 uses a 50 ft corded cable, while Polaris 9300 Sport Pool Cleaner F9300 uses a 60 ft corded cable. Dolphin S100 is listed at 14 lb versus 18 lb for Polaris 9300 Sport Pool Cleaner F9300; that 4 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Dolphin S100 is listed at $849 and Polaris 9300 Sport Pool Cleaner F9300 at $1,393.60; Dolphin S100 is $544.60 less. Dolphin S100 and Polaris 9300 Sport Pool Cleaner F9300 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 S100 | Polaris 9300 Sport Pool Cleaner F9300 |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | YesEdge | No |
| Scrubs the waterline | No | No |
| Fine-debris filter included | YesEdge | No |
| Large-debris filter | YesEdge | No |
| Automatic scheduling | Yes | Yes |
| Smartphone app | No | Not listed |
| Anti-tangle swivel | Not listed | Not listed |
| 3-year warranty | No | Not listed |
| 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 S100 stands out
Dolphin S100 is the better fit for shoppers prioritizing the lower $849 starting price.
- Adds wall climbing and scrubbing
- Includes filtration for sand, pollen and other fine debris
- Includes a large-debris bin or bag for leaves
- Can start on a weekly schedule without a manual launch before every cycle
Where Polaris 9300 Sport Pool Cleaner F9300 stands out
Polaris 9300 Sport Pool Cleaner F9300 is the better fit for pools that need floor cleaning.
- Cleans the pool floor
- 60 ft cable
Dolphin S100 vs Polaris 9300 Sport Pool Cleaner F9300 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 S100 | Polaris 9300 Sport Pool Cleaner F9300 |
|---|---|---|
| Best fit | Inground and above-ground pools up to 33 ft that need floor and wall cleaning, with fine debris. | Pools that need floor cleaning. |
| Starting price | $849 | $1,393.60 |
| Pool type | Inground, Above-ground | Not listed |
| Maximum pool length | Up to 33 ft | Not listed |
| Cleaning coverage | Floor, Walls | Floor |
| Power | Corded | Corded |
| Filtration | Basket, UltraFilter | Not listed |
| Scheduling | Weekly schedule | Daily schedule |
| App and remote | Power-supply controls | Not listed |
| Cable | 50 ft | 60 ft |
| Robot weight | 14 lb | 18 lb |
| Warranty | 2 years | Not listed |
Consider the stronger Pool Express option
Dolphin S100 and Polaris 9300 Sport Pool Cleaner F9300 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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