Robotic pool cleaner comparison

Dolphin Active 15 vs Dolphin Explorer E20

A side-by-side comparison of pool fit, cleaning coverage, filtration, controls and the better Pool Express option.

By Brian Williamson, Pool Express product specialist
Updated November 9, 2026

Better alternative

A stronger Pool Express option

Dolphin Active 15 and Dolphin Explorer E20 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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Active

Dolphin Active 15

Inground and above-ground pools up to 33 ft that need floor and wall cleaning, with fine debris.

Listed price $849

View better alternatives

Explorer

Dolphin Explorer E20

Inground and above-ground pools up to 33 ft that need floor and wall cleaning.

Listed price $699

View better alternatives

A better alternative

What we recommend instead

Pool Express pick

Dolphin Cayman

Inground and above-ground pools up to 40 ft that need floor and wall cleaning.

$1,079

Buy Dolphin Cayman

Buying guidance

Dolphin Active 15 or Dolphin Explorer E20: our take

Dolphin Active 15 and Dolphin Explorer E20 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 Active 15 lists 1 active brush. Dolphin Explorer E20 lists 1 active brush and Dual DC motors.

Filtration and debris

Dolphin Active 15 includes Basket and UltraFilter; Dolphin Explorer E20 includes Basket. That gives Dolphin Active 15 the clearer documented edge for fine silt, pollen and sand.

Controls and day-to-day ownership

Dolphin Active 15 provides a weekly timer and power-supply controls; Dolphin Explorer E20 provides one-touch starts and power-supply controls. Both use a 40 ft corded cable. Dolphin Active 15 is listed at 14 lb versus 14.5 lb for Dolphin Explorer E20; that 0.5 lb difference matters when lifting the robot from the pool.

Price, warranty and the decision

Dolphin Active 15 is listed at $849 and Dolphin Explorer E20 at $699; Dolphin Explorer E20 is $150 less. Each lists a 2-year manufacturer warranty. Dolphin Active 15 and Dolphin Explorer E20 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 Active 15	Dolphin Explorer E20
Cleans the pool floor	Yes	Yes
Climbs and cleans walls	Yes	Yes
Scrubs the waterline	No	No
Fine-debris filter included	YesEdge	No
Large-debris filter	Yes	Yes
Automatic scheduling	YesEdge	No
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 Active 15 stands out

Dolphin Active 15 is the better fit for inground and above-ground pools up to 33 ft that need floor and wall cleaning, with fine debris.

Includes filtration for sand, pollen and other fine debris
Can start on a weekly schedule without a manual launch before every cycle
Weighs 14 lb versus 14.5 lb

Where Dolphin Explorer E20 stands out

Dolphin Explorer E20 is the better fit for shoppers prioritizing the lower $699 starting price.

Is listed $150 lower
Top-load filter basket

Dolphin Active 15 vs Dolphin Explorer E20 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 Active 15	Dolphin Explorer E20
Best fit	Inground and above-ground pools up to 33 ft that need floor and wall cleaning, with fine debris.	Inground and above-ground pools up to 33 ft that need floor and wall cleaning.
Starting price	$849	$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, UltraFilter	Basket
Scheduling	Weekly schedule	One-touch start
App and remote	Power-supply controls	Power-supply controls
Cable	40 ft	40 ft
Robot weight	14 lb	14.5 lb
Warranty	2 years	2 years

Final call

Consider the stronger Pool Express option