Robotic pool cleaner comparison

Dolphin Nautilus CC Pro vs Dolphin Proteus DX3

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 Nautilus CC Pro and Dolphin Proteus DX3 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.

Buy Dolphin Quantum Compare every robot

Nautilus

Dolphin Nautilus CC Pro

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

Listed price $1,199

View better alternatives

Proteus

Dolphin Proteus DX3

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 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 Nautilus CC Pro or Dolphin Proteus DX3: our take

Dolphin Nautilus CC Pro 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

Dolphin Nautilus CC Pro is intended for inground pools, while Dolphin Proteus DX3 is intended for inground and above-ground pools. Dolphin Nautilus CC Pro is rated for pools up to 50 ft; Dolphin Proteus DX3 is rated up to 33 ft. Dolphin Nautilus CC Pro cleans floor, walls, and waterline; Dolphin Proteus DX3 cleans floor and walls. Dolphin Nautilus CC Pro lists CleverClean navigation. Dolphin Proteus DX3 lists 1 active brush.

Filtration and debris

Both models include Basket.

Controls and day-to-day ownership

Dolphin Nautilus CC Pro provides a weekly timer and smartphone control; Dolphin Proteus DX3 provides a weekly timer and power-supply controls. Dolphin Nautilus CC Pro uses a 60 ft corded cable with an anti-tangle swivel, while Dolphin Proteus DX3 uses a 50 ft corded cable.

Price, warranty and the decision

Dolphin Nautilus CC Pro is listed at $1,199 and Dolphin Proteus DX3 at $699; Dolphin Proteus DX3 is $500 less. Each lists a 2-year manufacturer warranty. Dolphin Nautilus CC Pro and Dolphin Proteus DX3 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 Nautilus CC Pro	Dolphin Proteus DX3
Cleans the pool floor	Yes	Yes
Climbs and cleans walls	Yes	Yes
Scrubs the waterline	YesEdge	No
Fine-debris filter included	No	No
Large-debris filter	Yes	Yes
Automatic scheduling	Yes	Yes
Smartphone app	YesEdge	No
Anti-tangle swivel	Yes	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 Nautilus CC Pro stands out

Dolphin Nautilus CC Pro is the better fit for pools up to 50 ft.

Cleans the floor, walls and waterline instead of stopping below the tile line
Adds smartphone control
Is rated for pools up to 50 ft

Where Dolphin Proteus DX3 stands out

Dolphin Proteus DX3 is the better fit for shoppers prioritizing the lower $699 starting price.

Is listed $500 lower
Cleans floor and walls

Dolphin Nautilus CC Pro 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 Nautilus CC Pro	Dolphin Proteus DX3
Best fit	Inground pools up to 50 ft that need floor, wall and waterline cleaning.	Inground and above-ground pools up to 33 ft that need floor and wall cleaning.
Starting price	$1,199	$699
Pool type	Inground	Inground, Above-ground
Maximum pool length	Up to 50 ft	Up to 33 ft
Cleaning coverage	Floor, Walls, Waterline	Floor, Walls
Power	Corded	Corded
Filtration	Basket	Basket
Scheduling	Weekly schedule + app	Weekly schedule
App and remote	App control	Power-supply controls
Cable	60 ft with anti-tangle swivel	50 ft
Robot weight	Not listed	14 lb
Warranty	2 years	2 years

Final call

Consider the stronger Pool Express option