Help me choose
Residential and commercial pools need different robots
Dolphin M400 and Dolphin Wave 140 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.
M-Line
Dolphin M400
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
Wave
Dolphin Wave 140
Commercial pools up to 127 ft in daily use that need floor cleaning with high capacity.
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 M400 or Dolphin Wave 140: our take
Dolphin M400 and Dolphin Wave 140 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 M400 is intended for inground pools, while Dolphin Wave 140 is intended for commercial pools. Dolphin M400 is rated for pools up to 50 ft; Dolphin Wave 140 is rated up to 127 ft. Dolphin M400 cleans floor, walls, and waterline; Dolphin Wave 140 cleans floor. Dolphin Wave 140's documented cleaning system includes 6 active brushes.
Filtration and debris
Dolphin M400 includes Standard filter and UltraFilter; Dolphin Wave 140 includes Basket. That gives Dolphin M400 the clearer documented edge for fine silt, pollen and sand. Dolphin Wave 140 has the better documented path for bulky leaves and larger debris.
Controls and day-to-day ownership
Dolphin M400 provides smartphone control; Dolphin Wave 140 provides one-touch starts and included remote control. Dolphin M400 uses a 60 ft corded cable with an anti-tangle swivel, while Dolphin Wave 140 uses a 140 ft corded cable.
Price, warranty and the decision
Dolphin M400 is listed at $1,599 and Dolphin Wave 140 at $8,499; Dolphin M400 is $6,900 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 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 M400 | Dolphin Wave 140 |
|---|---|---|
| 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 | No | YesEdge |
| Automatic scheduling | Not listed | No |
| Smartphone app | Yes | Not listed |
| Anti-tangle swivel | YesEdge | No |
| 3-year warranty | Yes | Yes |
| 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 M400 stands out
Dolphin M400 is the better fit for shoppers prioritizing the lower $1,599 starting price.
- Cleans the floor, walls and waterline instead of stopping below the tile line
- Includes filtration for sand, pollen and other fine debris
- Has documented smartphone control
- Uses an anti-tangle swivel cable
Where Dolphin Wave 140 stands out
Dolphin Wave 140 is the better fit for pools up to 127 ft.
- Includes a large-debris bin or bag for leaves
- Is rated for pools up to 127 ft
Dolphin M400 vs Dolphin Wave 140 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 M400 | Dolphin Wave 140 |
|---|---|---|
| Best fit | Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris. | Commercial pools up to 127 ft in daily use that need floor cleaning with high capacity. |
| Starting price | $1,599 | $8,499 |
| Pool type | Inground | Inground |
| Maximum pool length | Up to 50 ft | Up to 127 ft |
| Cleaning coverage | Floor, Walls, Waterline | Floor |
| Power | Corded | Corded |
| Filtration | Standard filter, UltraFilter | Basket |
| Scheduling | Not listed | One-touch start |
| App and remote | App control | Not listed |
| Cable | 60 ft with anti-tangle swivel | 140 ft |
| Robot weight | Not listed | 55.1 lb |
| Warranty | 3 years | 3 years |
Choose for the pool you operate
Dolphin M400 and Dolphin Wave 140 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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