Help me choose
A stronger Pool Express option
Dolphin Nautilus CC Supreme and Niya Sonar 30 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.
Nautilus
Dolphin Nautilus CC Supreme
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
Niya Sonar
Niya Sonar 30
Inground and above-ground pools up to 33 ft that need floor, wall and waterline cleaning without a cord.
What we recommend instead
Clear S
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
$1,749
Buy Clear SDolphin Nautilus CC Supreme or Niya Sonar 30: our take
Dolphin Nautilus CC Supreme and Niya Sonar 30 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 Supreme is intended for inground pools, while Niya Sonar 30 is intended for inground and above-ground pools. Dolphin Nautilus CC Supreme is rated for pools up to 50 ft; Niya Sonar 30 is rated up to 33 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. Niya Sonar 30 lists 2 active brushes, Sonar navigation, and Three brushless motors.
Filtration and debris
Dolphin Nautilus CC Supreme includes Standard filter and UltraFilter; Niya Sonar 30 includes Basket. That gives Dolphin Nautilus CC Supreme the clearer documented edge for fine silt, pollen and sand. Niya Sonar 30 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; Niya Sonar 30 provides one-touch starts and power-supply controls. Dolphin Nautilus CC Supreme uses a 60 ft corded cable with an anti-tangle swivel, while Niya Sonar 30 uses cordless battery power.
Price, warranty and the decision
Dolphin Nautilus CC Supreme is listed at $1,599 and Niya Sonar 30 at $379; Niya Sonar 30 is $1,220 less. Dolphin Nautilus CC Supreme lists a 3-year warranty compared with 1 years for Niya Sonar 30. Dolphin Nautilus CC Supreme and Niya Sonar 30 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 | Dolphin Nautilus CC Supreme | Niya Sonar 30 |
|---|---|---|
| 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 | YesEdge | No |
| Smartphone app | YesEdge | No |
| Anti-tangle swivel | Yes | Not listed |
| 3-year warranty | YesEdge | No |
| No recharging between cycles | YesEdge | No |
| 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 pools up to 50 ft.
- Includes filtration for sand, pollen and other fine debris
- Can start on a weekly schedule without a manual launch before every cycle
- Adds smartphone control
- Carries a 3-year warranty instead of 1 years
Where Niya Sonar 30 stands out
Niya Sonar 30 is the better fit for shoppers prioritizing the lower $379 starting price.
- Includes a large-debris bin or bag for leaves
- Is listed $1,220 lower
Dolphin Nautilus CC Supreme vs Niya Sonar 30 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 | Niya Sonar 30 |
|---|---|---|
| Best fit | Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris. | Inground and above-ground pools up to 33 ft that need floor, wall and waterline cleaning without a cord. |
| Starting price | $1,599 | $379 |
| Pool type | Inground | Inground, Above-ground |
| Maximum pool length | Up to 50 ft | Up to 33 ft |
| Cleaning coverage | Floor, Walls, Waterline | Floor, Walls, Waterline |
| Power | Corded | Cordless |
| Filtration | Standard filter, UltraFilter | Basket |
| Scheduling | Weekly schedule + app | One-touch start |
| App and remote | App + included remote | Power-supply controls |
| Cable | 60 ft with anti-tangle swivel | Cordless |
| Robot weight | Not listed | 19.2 lb |
| Warranty | 3 years | 1 years |
Consider the stronger Pool Express option
Dolphin Nautilus CC Supreme and Niya Sonar 30 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.
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