Help me choose
A stronger Pool Express option
Dolphin Nautilus CC Plus and Niya Tracker 55 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 Plus
Inground and above-ground pools up to 50 ft that need floor and wall cleaning.
Niya Tracker
Niya Tracker 55
Inground and above-ground pools up to 40 ft that need floor, wall and waterline cleaning without a cord, with app-selected modes.
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 Plus or Niya Tracker 55: our take
Dolphin Nautilus CC Plus and Niya Tracker 55 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 CC Plus is rated for pools up to 50 ft; Niya Tracker 55 is rated up to 40 ft. Dolphin Nautilus CC Plus cleans floor and walls; Niya Tracker 55 cleans floor, walls, and waterline. Dolphin Nautilus CC Plus lists 2 active brushes and CleverClean navigation. Niya Tracker 55 lists 2 active brushes, Sonar navigation, and Dual drive motors.
Filtration and debris
Dolphin Nautilus CC Plus includes Standard filter; Niya Tracker 55 includes Basket. Niya Tracker 55 has the better documented path for bulky leaves and larger debris.
Controls and day-to-day ownership
Dolphin Nautilus CC Plus provides a weekly timer and smartphone control; Niya Tracker 55 provides one-touch starts and smartphone control. Dolphin Nautilus CC Plus uses a 60 ft corded cable with an anti-tangle swivel, while Niya Tracker 55 uses cordless battery power. Dolphin Nautilus CC Plus is listed at 20 lb versus 19.8 lb for Niya Tracker 55; that 0.1999999999999993 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Dolphin Nautilus CC Plus is listed at $949 and Niya Tracker 55 at $779; Niya Tracker 55 is $170 less. Dolphin Nautilus CC Plus lists a 2.5-year warranty compared with 1.5 years for Niya Tracker 55. Dolphin Nautilus CC Plus and Niya Tracker 55 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 Plus | Niya Tracker 55 |
|---|---|---|
| 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 | No | YesEdge |
| Automatic scheduling | YesEdge | No |
| Smartphone app | Yes | Yes |
| Anti-tangle swivel | Yes | 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 CC Plus stands out
Dolphin Nautilus CC Plus is the better fit for pools up to 50 ft.
- Can start on a weekly schedule without a manual launch before every cycle
- Carries a 2.5-year warranty instead of 1.5 years
- Is rated for pools up to 50 ft
- Runs from continuous plug-in power without a recharge between cycles
Where Niya Tracker 55 stands out
Niya Tracker 55 is the better fit for shoppers prioritizing the lower $779 starting price.
- Cleans the floor, walls and waterline instead of stopping below the tile line
- Includes a large-debris bin or bag for leaves
- Is listed $170 lower
- Weighs 19.8 lb versus 20 lb
Dolphin Nautilus CC Plus vs Niya Tracker 55 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 Plus | Niya Tracker 55 |
|---|---|---|
| Best fit | Inground and above-ground pools up to 50 ft that need floor and wall cleaning. | Inground and above-ground pools up to 40 ft that need floor, wall and waterline cleaning without a cord, with app-selected modes. |
| Starting price | $949 | $779 |
| Pool type | Inground, Above-ground | Inground, Above-ground |
| Maximum pool length | Up to 50 ft | Up to 40 ft |
| Cleaning coverage | Floor, Walls | Floor, Walls, Waterline |
| Power | Corded | Cordless |
| Filtration | Standard filter | Basket |
| Scheduling | Weekly schedule + app | One-touch start |
| App and remote | App control | App control |
| Cable | 60 ft with anti-tangle swivel | Cordless |
| Robot weight | 20 lb | 19.8 lb |
| Warranty | 2.5 years | 1.5 years |
Consider the stronger Pool Express option
Dolphin Nautilus CC Plus and Niya Tracker 55 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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