Help me choose
A stronger Pool Express option
Dolphin Nautilus CC and Dolphin Premium 20 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.
Nautilus
Dolphin Nautilus CC
Inground and above-ground pools up to 33 ft that need floor and wall cleaning.
Premium
Dolphin Premium 20
Inground and above-ground pools up to 33 ft that need floor and wall cleaning.
What we recommend instead
Dolphin Cayman
Inground and above-ground pools up to 40 ft that need floor and wall cleaning.
$1,079
Buy Dolphin CaymanDolphin Nautilus CC or Dolphin Premium 20: our take
Dolphin Nautilus CC and Dolphin Premium 20 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 Nautilus CC lists 1 active brush. Dolphin Premium 20 lists 1 active brush and CleverClean navigation.
Filtration and debris
Both models include Basket.
Controls and day-to-day ownership
Both models provide one-touch starts and power-supply controls. Dolphin Nautilus CC uses a 50 ft corded cable, while Dolphin Premium 20 uses continuous corded power.
Price, warranty and the decision
Dolphin Nautilus CC is listed at $699 and Dolphin Premium 20 at $899; Dolphin Nautilus CC is $200 less. Each lists a 2-year manufacturer warranty. Dolphin Nautilus CC and Dolphin Premium 20 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 Nautilus CC | Dolphin Premium 20 |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | No | No |
| Fine-debris filter included | No | No |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | No | No |
| Smartphone app | No | No |
| Anti-tangle swivel | No | No |
| 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 stands out
Dolphin Nautilus CC is the better fit for shoppers prioritizing the lower $699 starting price.
- Is listed $200 lower
- 50 ft cable, no swivel
Where Dolphin Premium 20 stands out
Dolphin Premium 20 is the better fit for inground and above-ground pools up to 33 ft that need floor and wall cleaning.
- 2-hour cycle, pools up to 33 ft
- Active brush, 4,000 GPH suction
Dolphin Nautilus CC vs Dolphin Premium 20 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 | Dolphin Premium 20 |
|---|---|---|
| Best fit | Inground and above-ground pools up to 33 ft that need floor and wall cleaning. | Inground and above-ground pools up to 33 ft that need floor and wall cleaning. |
| Starting price | $699 | $899 |
| 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 | Basket |
| Scheduling | One-touch start | One-touch start |
| App and remote | Power-supply controls | Power-supply controls |
| Cable | 50 ft | Not listed |
| Robot weight | Not listed | 14.6 lb |
| Warranty | 2 years | 2 years |
Consider the stronger Pool Express option
Dolphin Nautilus CC and Dolphin Premium 20 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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