Help me choose
A stronger Pool Express option
Dolphin Explorer E20 and Dolphin Proteus DX3 are compared feature by feature below. For a stronger Pool Express option, consider Dolphin Cayman. Inground and above-ground pools up to 40 ft that need floor and wall cleaning.
Explorer
Dolphin Explorer E20
Inground and above-ground pools up to 33 ft that need floor and wall cleaning.
Proteus
Dolphin Proteus DX3
Inground and above-ground pools up to 33 ft that need floor and wall cleaning.
What we recommend instead
Dolphin Cayman
Inground and above-ground pools up to 40 ft that need floor and wall cleaning.
$1,079
Buy Dolphin CaymanDolphin Explorer E20 or Dolphin Proteus DX3: our take
Dolphin Explorer E20 and Dolphin Proteus DX3 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
Both robots are intended for inground and above-ground pools. Both are rated for pools up to 33 ft. Each cleans floor and walls, so coverage alone does not separate them. Dolphin Explorer E20 lists 1 active brush and Dual DC motors. Dolphin Proteus DX3 lists 1 active brush.
Filtration and debris
Both models include Basket.
Controls and day-to-day ownership
Dolphin Explorer E20 provides one-touch starts and power-supply controls; Dolphin Proteus DX3 provides a weekly timer and power-supply controls. Dolphin Explorer E20 uses a 40 ft corded cable, while Dolphin Proteus DX3 uses a 50 ft corded cable. Dolphin Explorer E20 is listed at 14.5 lb versus 14 lb for Dolphin Proteus DX3; that 0.5 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Both are listed at $699. Each lists a 2-year manufacturer warranty. Dolphin Explorer E20 and Dolphin Proteus DX3 each have a specific fit, but neither is the Pool Express pick for this job. Our better alternative is Dolphin Cayman. Inground and above-ground pools up to 40 ft that need floor and wall 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 E20 | Dolphin Proteus DX3 |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | No | No |
| Fine-debris filter included | No | No |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | No | YesEdge |
| Smartphone app | No | No |
| Anti-tangle swivel | Not listed | Not listed |
| 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 inground and above-ground pools up to 33 ft that need floor and wall cleaning.
- 40 ft cable
- Manual start, no timer
Where Dolphin Proteus DX3 stands out
Dolphin Proteus DX3 is the better fit for inground and above-ground pools up to 33 ft that need floor and wall cleaning.
- Can start on a weekly schedule without a manual launch before every cycle
- Weighs 14 lb versus 14.5 lb
Dolphin Explorer E20 vs Dolphin Proteus DX3 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 Proteus DX3 |
|---|---|---|
| Best fit | Inground and above-ground pools up to 33 ft that need floor and wall cleaning. | Inground and above-ground pools up to 33 ft that need floor and wall cleaning. |
| Starting price | $699 | $699 |
| Pool type | Inground, Above-ground | Inground, Above-ground |
| Maximum pool length | Up to 33 ft | Up to 33 ft |
| Cleaning coverage | Floor, Walls | Floor, Walls |
| Power | Corded | Corded |
| Filtration | Basket | Basket |
| Scheduling | One-touch start | Weekly schedule |
| App and remote | Power-supply controls | Power-supply controls |
| Cable | 40 ft | 50 ft |
| Robot weight | 14.5 lb | 14 lb |
| Warranty | 2 years | 2 years |
Consider the stronger Pool Express option
Dolphin Explorer E20 and Dolphin Proteus DX3 are compared feature by feature below. For a stronger Pool Express option, consider Dolphin Cayman. Inground and above-ground pools up to 40 ft that need floor and wall cleaning.
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