Robotic pool cleaner comparison

Aquabot Rapids 2500 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

Aquabot Rapids 2500 and Dolphin Proteus DX4 are compared feature by feature below. For a stronger Pool Express option, consider Clear S. Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.

Buy Clear S Compare every robot

Aquabot

Aquabot Rapids 2500

Inground and above-ground pools up to 50 ft that need floor, wall and waterline cleaning.

Listed price $999

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

Clear S

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

$1,749

Buy Clear S

Buying guidance

Aquabot Rapids 2500 or Dolphin Proteus DX4: our take

Aquabot Rapids 2500 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

Aquabot Rapids 2500 is intended for inground and above-ground pools, while Dolphin Proteus DX4 is intended for inground pools. Aquabot Rapids 2500 has a published maximum pool length of 50 ft; the other model does not have a verified length in our source material. Each cleans floor, walls, and waterline, so coverage alone does not separate them. Aquabot Rapids 2500 lists Gyroscope navigation. Dolphin Proteus DX4 lists 1 active brush.

Filtration and debris

Dolphin Proteus DX4 has documented included filtration—Basket—while the other model's included media is not fully published. Dolphin Proteus DX4 has the better documented path for bulky leaves and larger debris.

Controls and day-to-day ownership

Aquabot Rapids 2500 provides smartphone control; Dolphin Proteus DX4 provides a weekly timer and power-supply controls.

Price, warranty and the decision

Aquabot Rapids 2500 is listed at $999 and Dolphin Proteus DX4 at $1,199; Aquabot Rapids 2500 is $200 less. Each lists a 2-year manufacturer warranty. Aquabot Rapids 2500 and Dolphin Proteus DX4 each have a specific fit, but neither is the Pool Express pick for this job. Our better alternative is Clear S. 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	Aquabot Rapids 2500	Dolphin Proteus DX4
Cleans the pool floor	Yes	Yes
Climbs and cleans walls	Yes	Yes
Scrubs the waterline	Yes	Yes
Fine-debris filter included	No	No
Large-debris filter	No	YesEdge
Automatic scheduling	Not listed	Yes
Smartphone app	YesEdge	No
Anti-tangle swivel	Not listed	Yes
3-year warranty	No	No
No recharging between cycles	Not listed	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 Aquabot Rapids 2500 stands out

Aquabot Rapids 2500 is the better fit for shoppers prioritizing the lower $999 starting price.

Adds smartphone control
Is listed $200 lower

Where Dolphin Proteus DX4 stands out

Dolphin Proteus DX4 is the better fit for inground pools that need floor, wall and waterline cleaning.

Includes a large-debris bin or bag for leaves
60 ft cable with anti-tangle swivel

Aquabot Rapids 2500 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	Aquabot Rapids 2500	Dolphin Proteus DX4
Best fit	Inground and above-ground pools up to 50 ft that need floor, wall and waterline cleaning.	Inground pools that need floor, wall and waterline cleaning.
Starting price	$999	$1,199
Pool type	Inground, Above-ground	Inground
Maximum pool length	Up to 50 ft	Not listed
Cleaning coverage	Floor, Walls, Waterline	Floor, Walls, Waterline
Power	Not listed	Corded
Filtration	Not listed	Basket
Scheduling	Not listed	Weekly schedule
App and remote	App control	Power-supply controls
Cable	Not listed	60 ft with anti-tangle swivel
Robot weight	Not listed	Not listed
Warranty	2 years	2 years

Final call

Consider the stronger Pool Express option