Help me choose
Our pick: Dolphin Quantum
Dolphin Quantum is the Pool Express pick in this matchup. Dolphin Quantum cleans the floor, walls and waterline instead of stopping below the tile line. Dolphin Quantum uses the high-capacity XXL MaxBin for easier top-load debris handling.
Explorer
Dolphin Explorer E20
Inground and above-ground pools up to 33 ft that need floor and wall cleaning.
ProLine
Dolphin Quantum
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
Why Dolphin Quantum is our pick
Dolphin Quantum
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
$1,649
Buy Dolphin QuantumDolphin Explorer E20 or Dolphin Quantum: our take
Dolphin Explorer E20 and Dolphin Quantum 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 Explorer E20 is intended for inground and above-ground pools, while Dolphin Quantum is intended for inground pools. Dolphin Explorer E20 is rated for pools up to 33 ft; Dolphin Quantum is rated up to 50 ft. Dolphin Explorer E20 cleans floor and walls; Dolphin Quantum cleans floor, walls, and waterline. Dolphin Explorer E20 lists 1 active brush and Dual DC motors. Dolphin Quantum lists 2 active brushes, SmartNav 2.0 navigation, and Dual DC motors.
Filtration and debris
Dolphin Explorer E20 includes Basket; Dolphin Quantum includes XXL MaxBin and NanoFilters. Dolphin Quantum has the clearer documented edge for fine silt, pollen and sand.
Controls and day-to-day ownership
Dolphin Explorer E20 provides one-touch starts and power-supply controls; Dolphin Quantum provides a weekly timer, smartphone control, and included remote control. Dolphin Explorer E20 uses a 40 ft corded cable, while Dolphin Quantum uses a 60 ft corded cable with an anti-tangle swivel. Dolphin Explorer E20 is listed at 14.5 lb versus 18.3 lb for Dolphin Quantum; that 3.8000000000000007 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Dolphin Explorer E20 is listed at $699 and Dolphin Quantum at $1,649; Dolphin Explorer E20 is $950 less. Each lists a 2-year manufacturer warranty. Pool Express pick: Dolphin Quantum. Dolphin Quantum cleans the floor, walls and waterline instead of stopping below the tile line. Dolphin Quantum uses the high-capacity XXL MaxBin for easier top-load debris handling. Choose Dolphin Explorer E20 when it is the better fit for shoppers prioritizing the lower $699 starting price.
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 E20 | Dolphin Quantum |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| 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 | Not listed | Yes |
| 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 Explorer E20 stands out
Dolphin Explorer E20 is the better fit for shoppers prioritizing the lower $699 starting price.
- Is listed $950 lower
- Weighs 14.5 lb versus 18.3 lb
Where Dolphin Quantum stands out
Dolphin Quantum is the better fit for pools up to 50 ft.
- Cleans the floor, walls and waterline instead of stopping below the tile line
- Uses the high-capacity XXL MaxBin for easier top-load debris handling
- Includes filtration for sand, pollen and other fine debris
- Uses 2 active brushes instead of 1
Dolphin Explorer E20 vs Dolphin Quantum 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 E20 | Dolphin Quantum |
|---|---|---|
| Best fit | Inground and above-ground pools up to 33 ft that need floor and wall cleaning. | Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris. |
| Starting price | $699 | $1,649 |
| Pool type | Inground, Above-ground | Inground |
| Maximum pool length | Up to 33 ft | Up to 50 ft |
| Cleaning coverage | Floor, Walls | Floor, Walls, Waterline |
| Power | Corded | Corded |
| Filtration | Basket | XXL MaxBin, NanoFilters |
| Scheduling | One-touch start | Weekly schedule + app |
| App and remote | Power-supply controls | App + included remote |
| Cable | 40 ft | 60 ft with anti-tangle swivel |
| Robot weight | 14.5 lb | 18.3 lb |
| Warranty | 2 years | 2 years |
Choose Dolphin Quantum
Dolphin Quantum is the Pool Express pick in this matchup. Dolphin Quantum cleans the floor, walls and waterline instead of stopping below the tile line. Dolphin Quantum uses the high-capacity XXL MaxBin for easier top-load debris handling.
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