Help me choose
Residential and commercial pools need different robots
Dolphin S400 and Dolphin Wave 300 XL serve different kinds of pools, so there is no honest one-size-fits-all winner. Choose Dolphin Quantum for residential use. Choose Dolphin Wave 100 for commercial use.
S-Line
Dolphin S400
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
Wave
Dolphin Wave 300 XL
Commercial pools up to 165 ft in daily use that need high-capacity floor cleaning.
Choose residential and commercial cleaners separately
Dolphin Quantum
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
$1,649
Buy Dolphin Quantum
Dolphin Wave 100
Commercial pools up to 88 ft that need floor, wall and waterline cleaning.
$4,699
Buy Dolphin Wave 100Dolphin S400 or Dolphin Wave 300 XL: our take
Dolphin S400 and Dolphin Wave 300 XL can be compared on specifications, but they are designed for different jobs. Start with residential versus commercial use, then use the details below to understand the tradeoffs.
Pool fit and cleaning reach
Dolphin S400 is intended for inground pools, while Dolphin Wave 300 XL is intended for commercial pools. Dolphin S400 is rated for pools up to 50 ft; Dolphin Wave 300 XL is rated up to 165 ft. Dolphin S400 cleans floor, walls, and waterline; Dolphin Wave 300 XL cleans floor. Dolphin S400 lists 2 active brushes and CleverClean navigation. Dolphin Wave 300 XL lists 6 active brushes.
Filtration and debris
Dolphin S400 includes Basket and UltraFilter; Dolphin Wave 300 XL includes Basket. That gives Dolphin S400 the clearer documented edge for fine silt, pollen and sand.
Controls and day-to-day ownership
Dolphin S400 provides a weekly timer and smartphone control; Dolphin Wave 300 XL provides one-touch starts and included remote control. Dolphin S400 uses a 60 ft corded cable with an anti-tangle swivel, while Dolphin Wave 300 XL uses a 165 ft corded cable with an anti-tangle swivel.
Price, warranty and the decision
Dolphin S400 is listed at $1,799 and Dolphin Wave 300 XL at $15,499; Dolphin S400 is $13,700 less. Dolphin S400 lists a 2-year warranty compared with 3 years for Dolphin Wave 300 XL. These robots are built for different jobs, so pool type and facility capacity decide the comparison before individual features do. For a residential pool, the Pool Express pick is Dolphin Quantum. Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris. For a commercial facility, the Pool Express pick is Dolphin Wave 100. Commercial pools up to 88 ft that need floor, wall and waterline 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 S400 | Dolphin Wave 300 XL |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | YesEdge | No |
| Scrubs the waterline | YesEdge | No |
| Fine-debris filter included | YesEdge | No |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | YesEdge | No |
| Smartphone app | Yes | Not listed |
| Anti-tangle swivel | Yes | Yes |
| 3-year warranty | No | YesEdge |
| 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 S400 stands out
Dolphin S400 is the better fit for shoppers prioritizing the lower $1,799 starting price.
- Cleans the floor, walls and waterline instead of stopping below the tile line
- Includes filtration for sand, pollen and other fine debris
- Can start on a weekly schedule without a manual launch before every cycle
- Has documented smartphone control
Where Dolphin Wave 300 XL stands out
Dolphin Wave 300 XL is the better fit for pools up to 165 ft.
- Uses 6 active brushes instead of 2
- Carries a 3-year warranty instead of 2 years
- Is rated for pools up to 165 ft
Dolphin S400 vs Dolphin Wave 300 XL 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 S400 | Dolphin Wave 300 XL |
|---|---|---|
| Best fit | Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris. | Commercial pools up to 165 ft in daily use that need high-capacity floor cleaning. |
| Starting price | $1,799 | $15,499 |
| Pool type | Inground | Inground |
| Maximum pool length | Up to 50 ft | Up to 165 ft |
| Cleaning coverage | Floor, Walls, Waterline | Floor |
| Power | Corded | Corded |
| Filtration | Basket, UltraFilter | Basket |
| Scheduling | Weekly schedule + app | One-touch start |
| App and remote | App control | Not listed |
| Cable | 60 ft with anti-tangle swivel | 165 ft with anti-tangle swivel |
| Robot weight | Not listed | 58.4 lb |
| Warranty | 2 years | 3 years |
Choose for the pool you operate
Dolphin S400 and Dolphin Wave 300 XL serve different kinds of pools, so there is no honest one-size-fits-all winner. Choose Dolphin Quantum for residential use. Choose Dolphin Wave 100 for commercial use.
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