Help me choose
A stronger Pool Express option
Dolphin Nautilus Pool Up and Niya Sonar 30 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 Pool Up
Inground and above-ground pools up to 30 ft that need floor and wall cleaning, with heavy leaves.
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
Dolphin Quantum
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
$1,649
Buy Dolphin QuantumDolphin Nautilus Pool Up or Niya Sonar 30: our take
Dolphin Nautilus Pool Up 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
Both robots are intended for inground and above-ground pools. Dolphin Nautilus Pool Up is rated for pools up to 30 ft; Niya Sonar 30 is rated up to 33 ft. Dolphin Nautilus Pool Up cleans floor and walls; Niya Sonar 30 cleans floor, walls, and waterline. Dolphin Nautilus Pool Up lists 1 active brush. Niya Sonar 30 lists 2 active brushes, Sonar navigation, and Three brushless motors.
Filtration and debris
Dolphin Nautilus Pool Up includes Oversized leaf bag; Niya Sonar 30 includes Basket.
Controls and day-to-day ownership
Both models provide one-touch starts and power-supply controls. Dolphin Nautilus Pool Up uses a 40 ft corded cable, while Niya Sonar 30 uses cordless battery power. Dolphin Nautilus Pool Up is listed at 18 lb versus 19.2 lb for Niya Sonar 30; that 1.1999999999999993 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Dolphin Nautilus Pool Up is listed at $499 and Niya Sonar 30 at $379; Niya Sonar 30 is $120 less. Dolphin Nautilus Pool Up lists a 2-year warranty compared with 1 years for Niya Sonar 30. Dolphin Nautilus Pool Up and Niya Sonar 30 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 Pool Up | Niya Sonar 30 |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | No | YesEdge |
| Fine-debris filter included | No | No |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | No | No |
| Smartphone app | No | No |
| Anti-tangle swivel | Not listed | Not listed |
| 3-year warranty | No | 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 Pool Up stands out
Dolphin Nautilus Pool Up is the better fit for inground and above-ground pools up to 30 ft that need floor and wall cleaning, with heavy leaves.
- Includes an oversized leaf bag for bulky seasonal debris
- Carries a 2-year warranty instead of 1 years
- Runs from continuous plug-in power without a recharge between cycles
- Weighs 18 lb versus 19.2 lb
Where Niya Sonar 30 stands out
Niya Sonar 30 is the better fit for shoppers prioritizing the lower $379 starting price.
- Cleans the floor, walls and waterline instead of stopping below the tile line
- Uses 2 active brushes instead of 1
- Is rated for pools up to 33 ft
- Is listed $120 lower
Dolphin Nautilus Pool Up 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 Pool Up | Niya Sonar 30 |
|---|---|---|
| Best fit | Inground and above-ground pools up to 30 ft that need floor and wall cleaning, with heavy leaves. | Inground and above-ground pools up to 33 ft that need floor, wall and waterline cleaning without a cord. |
| Starting price | $499 | $379 |
| Pool type | Inground, Above-ground | Inground, Above-ground |
| Maximum pool length | Up to 30 ft | Up to 33 ft |
| Cleaning coverage | Floor, Walls | Floor, Walls, Waterline |
| Power | Corded | Cordless |
| Filtration | Oversized leaf bag | Basket |
| Scheduling | One-touch start | One-touch start |
| App and remote | Power-supply controls | Power-supply controls |
| Cable | 40 ft | Cordless |
| Robot weight | 18 lb | 19.2 lb |
| Warranty | 2 years | 1 years |
Consider the stronger Pool Express option
Dolphin Nautilus Pool Up and Niya Sonar 30 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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