Robotic pool cleaner comparison

Dolphin Advantage vs Dolphin Proteus DX4

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 Advantage and Dolphin Proteus DX4 are compared feature by feature below. For a stronger Pool Express option, consider Dolphin Quantum. Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.

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Advantage

Dolphin Advantage

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

Listed price $699

View better alternatives

Proteus

Dolphin Proteus DX4

Inground pools that need floor, wall and waterline cleaning.

Listed price $1,199

View better alternatives

A better alternative

What we recommend instead

Pool Express pick

Dolphin Quantum

Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.

$1,649

Buy Dolphin Quantum

Buying guidance

Dolphin Advantage or Dolphin Proteus DX4: our take

Dolphin Advantage and Dolphin Proteus DX4 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 pools. Dolphin Advantage has a published maximum pool length of 33 ft; the other model does not have a verified length in our source material. Dolphin Advantage cleans floor and walls; Dolphin Proteus DX4 cleans floor, walls, and waterline. Dolphin Advantage's documented cleaning system includes 1 active brush.

Filtration and debris

Both models include Basket.

Controls and day-to-day ownership

Both models provide a weekly timer and power-supply controls. Dolphin Advantage uses a 50 ft corded cable, while Dolphin Proteus DX4 uses a 60 ft corded cable with an anti-tangle swivel.

Price, warranty and the decision

Dolphin Advantage is listed at $699 and Dolphin Proteus DX4 at $1,199; Dolphin Advantage is $500 less. Each lists a 2-year manufacturer warranty. Dolphin Advantage and Dolphin Proteus DX4 each have a specific fit, but neither is the Pool Express pick for this job. Our better alternative is Dolphin Quantum. Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.

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 Advantage	Dolphin Proteus DX4
Cleans the pool floor	Yes	Yes
Climbs and cleans walls	Yes	Yes
Scrubs the waterline	No	YesEdge
Fine-debris filter included	No	No
Large-debris filter	Yes	Yes
Automatic scheduling	Yes	Yes
Smartphone app	No	No
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 Advantage stands out

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

Is listed $500 lower
Cleans floor and walls

Where Dolphin Proteus DX4 stands out

Dolphin Proteus DX4 is the better fit for inground 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 Advantage vs Dolphin Proteus DX4 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 Advantage	Dolphin Proteus DX4
Best fit	Inground pools up to 33 ft that need floor and wall cleaning.	Inground pools that need floor, wall and waterline cleaning.
Starting price	$699	$1,199
Pool type	Inground	Inground
Maximum pool length	Up to 33 ft	Not listed
Cleaning coverage	Floor, Walls	Floor, Walls, Waterline
Power	Corded	Corded
Filtration	Basket	Basket
Scheduling	Weekly schedule	Weekly schedule
App and remote	Power-supply controls	Power-supply controls
Cable	50 ft	60 ft with anti-tangle swivel
Robot weight	14 lb	Not listed
Warranty	2 years	2 years

Final call

Consider the stronger Pool Express option