Residential and commercial pools need different robots
Dolphin Explorer E40 and Dolphin W20 serve different kinds of pools, so there is no honest one-size-fits-all winner. Choose Dolphin Cayman for residential use. Choose Dolphin Wave 60 for commercial use.
Explorer
Dolphin Explorer E40
Inground pools up to 50 ft that need floor cleaning.
Choose residential and commercial cleaners separately
Dolphin Cayman
Inground and above-ground pools up to 40 ft that need floor and wall cleaning.
$1,079
Buy Dolphin CaymanDolphin Wave 60
Commercial pools up to 50 ft that need floor, wall and waterline cleaning.
$1,699
Buy Dolphin Wave 60Dolphin Explorer E40 or Dolphin W20: our take
Dolphin Explorer E40 and Dolphin W20 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 Explorer E40 is intended for inground pools, while Dolphin W20 is intended for commercial pools. Dolphin Explorer E40 has a published maximum pool length of 50 ft; the other model does not have a verified length in our source material. Dolphin Explorer E40 cleans floor; Dolphin W20 cleans floor, walls, and waterline. Dolphin W20's documented cleaning system includes Commercial-grade motors.
Filtration and debris
The available manufacturer records do not fully identify the filter media supplied with either robot, so filtration should be confirmed before ordering.
Controls and day-to-day ownership
Both models provide no fully published timer, app or remote specification.
Price, warranty and the decision
Dolphin Explorer E40 is listed at $1,599 and Dolphin W20 at $1,999; Dolphin Explorer E40 is $400 less. Each lists a 3-year manufacturer warranty. 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 Cayman. Inground and above-ground pools up to 40 ft that need floor and wall cleaning. For a commercial facility, the Pool Express pick is Dolphin Wave 60. Commercial pools up to 50 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 Explorer E40 | Dolphin W20 |
|---|---|---|
| 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 | No | No |
| Automatic scheduling | Not listed | Not listed |
| Smartphone app | Not listed | Not listed |
| Anti-tangle swivel | Not listed | Not listed |
| 3-year warranty | Yes | Yes |
| No recharging between cycles | Not listed | 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 Explorer E40 stands out
Dolphin Explorer E40 is the better fit for shoppers prioritizing the lower $1,599 starting price.
- Is listed $400 lower
- Cleans the pool floor
Where Dolphin W20 stands out
Dolphin W20 is the better fit for commercial pools that need floor, wall and waterline cleaning.
- Cleans the floor, walls and waterline instead of stopping below the tile line
- Cleans floor, walls and waterline
Dolphin Explorer E40 vs Dolphin W20 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 Explorer E40 | Dolphin W20 |
|---|---|---|
| Best fit | Inground pools up to 50 ft that need floor cleaning. | Commercial pools that need floor, wall and waterline cleaning. |
| Starting price | $1,599 | $1,999 |
| Pool type | Inground | Commercial |
| Maximum pool length | Up to 50 ft | Not listed |
| Cleaning coverage | Floor | Floor, Walls, Waterline |
| Power | Not listed | Corded |
| Filtration | Not listed | Not listed |
| Scheduling | Not listed | Not listed |
| App and remote | Not listed | Not listed |
| Cable | Not listed | Not listed |
| Robot weight | Not listed | Not listed |
| Warranty | 3 years | 3 years |
Choose for the pool you operate
Dolphin Explorer E40 and Dolphin W20 serve different kinds of pools, so there is no honest one-size-fits-all winner. Choose Dolphin Cayman for residential use. Choose Dolphin Wave 60 for commercial use.
More robotic pool cleaner comparisons
Keep comparing without rebuilding the same specification table yourself.
Help me choose

