Help me choose
A stronger Pool Express option
Dolphin Nautilus CC Supreme and Dolphin Proteus DX5i 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.
Nautilus
Dolphin Nautilus CC Supreme
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
Proteus
Dolphin Proteus DX5i
Inground pools up to 50 ft that need floor, wall and waterline cleaning.
What we recommend instead
Dolphin Quantum
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
$1,649
Buy Dolphin QuantumDolphin Nautilus CC Supreme or Dolphin Proteus DX5i: our take
Dolphin Nautilus CC Supreme and Dolphin Proteus DX5i 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. Both are rated for pools up to 50 ft. Each cleans floor, walls, and waterline, so coverage alone does not separate them. Dolphin Nautilus CC Supreme lists 2 active brushes and CleverClean navigation. Dolphin Proteus DX5i lists 1 active brush.
Filtration and debris
Dolphin Nautilus CC Supreme includes Standard filter and UltraFilter; Dolphin Proteus DX5i includes Basket. That gives Dolphin Nautilus CC Supreme the clearer documented edge for fine silt, pollen and sand. Dolphin Proteus DX5i has the better documented path for bulky leaves and larger debris.
Controls and day-to-day ownership
Dolphin Nautilus CC Supreme provides a weekly timer, smartphone control, and included remote control; Dolphin Proteus DX5i provides smartphone control. Both use a 60 ft corded cable with an anti-tangle swivel.
Price, warranty and the decision
Dolphin Nautilus CC Supreme is listed at $1,599 and Dolphin Proteus DX5i at $1,299; Dolphin Proteus DX5i is $300 less. Dolphin Nautilus CC Supreme lists a 3-year warranty compared with 2 years for Dolphin Proteus DX5i. Dolphin Nautilus CC Supreme and Dolphin Proteus DX5i 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 Supreme | Dolphin Proteus DX5i |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | Yes | Yes |
| Fine-debris filter included | YesEdge | No |
| Large-debris filter | No | YesEdge |
| Automatic scheduling | Yes | Not listed |
| Smartphone app | Yes | Yes |
| Anti-tangle swivel | Yes | Yes |
| 3-year warranty | YesEdge | 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 Supreme stands out
Dolphin Nautilus CC Supreme is the better fit for inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
- Includes filtration for sand, pollen and other fine debris
- Uses 2 active brushes instead of 1
- Carries a 3-year warranty instead of 2 years
Where Dolphin Proteus DX5i stands out
Dolphin Proteus DX5i is the better fit for shoppers prioritizing the lower $1,299 starting price.
- Includes a large-debris bin or bag for leaves
- Is listed $300 lower
Dolphin Nautilus CC Supreme vs Dolphin Proteus DX5i 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 Supreme | Dolphin Proteus DX5i |
|---|---|---|
| Best fit | Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris. | Inground pools up to 50 ft that need floor, wall and waterline cleaning. |
| Starting price | $1,599 | $1,299 |
| Pool type | Inground | Inground |
| Maximum pool length | Up to 50 ft | Up to 50 ft |
| Cleaning coverage | Floor, Walls, Waterline | Floor, Walls, Waterline |
| Power | Corded | Corded |
| Filtration | Standard filter, UltraFilter | Basket |
| Scheduling | Weekly schedule + app | Not listed |
| App and remote | App + included remote | App control |
| Cable | 60 ft with anti-tangle swivel | 60 ft with anti-tangle swivel |
| Robot weight | Not listed | Not listed |
| Warranty | 3 years | 2 years |
Consider the stronger Pool Express option
Dolphin Nautilus CC Supreme and Dolphin Proteus DX5i 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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