Help me choose
A stronger Pool Express option
Dolphin Nautilus AG and Niya Tracker 25 are compared feature by feature below. For a stronger Pool Express option, consider Dolphin Escape. Inground and above-ground pools up to 30 ft that need floor cleaning.
Nautilus
Dolphin Nautilus AG
Above-ground and small inground pools up to 30 ft that need the floor vacuumed.
Niya Tracker
Niya Tracker 25
Above-ground pools up to 26 ft that need the floor cleaned without a cord.
What we recommend instead
Dolphin Escape
Inground and above-ground pools up to 30 ft that need floor cleaning.
$669
Buy Dolphin EscapeDolphin Nautilus AG or Niya Tracker 25: our take
Dolphin Nautilus AG and Niya Tracker 25 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 above-ground pools. Dolphin Nautilus AG is rated for pools up to 30 ft; Niya Tracker 25 is rated up to 26 ft. Each cleans floor, so coverage alone does not separate them. Dolphin Nautilus AG lists 1 active brush and CleverClean navigation. Niya Tracker 25 lists Sonar navigation and Brushless motors.
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 AG uses continuous corded power, while Niya Tracker 25 uses cordless battery power. Dolphin Nautilus AG is listed at 14.6 lb versus 10 lb for Niya Tracker 25; that 4.6 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Dolphin Nautilus AG is listed at $568 and Niya Tracker 25 at $379; Niya Tracker 25 is $189 less. Dolphin Nautilus AG lists a 1-year warranty compared with 1.5 years for Niya Tracker 25. Dolphin Nautilus AG and Niya Tracker 25 each have a specific fit, but neither is the Pool Express pick for this job. Our better alternative is Dolphin Escape. Inground and above-ground pools up to 30 ft that need floor 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 AG | Niya Tracker 25 |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | No | No |
| 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 | 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 AG stands out
Dolphin Nautilus AG is the better fit for pools up to 30 ft.
- Is rated for pools up to 30 ft
- Runs from continuous plug-in power without a recharge between cycles
Where Niya Tracker 25 stands out
Niya Tracker 25 is the better fit for shoppers prioritizing the lower $379 starting price.
- Carries a 1.5-year warranty instead of 1 years
- Is listed $189 lower
- Weighs 10 lb versus 14.6 lb
Dolphin Nautilus AG vs Niya Tracker 25 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 AG | Niya Tracker 25 |
|---|---|---|
| Best fit | Above-ground and small inground pools up to 30 ft that need the floor vacuumed. | Above-ground pools up to 26 ft that need the floor cleaned without a cord. |
| Starting price | $568 | $379 |
| Pool type | Above-ground | Above-ground |
| Maximum pool length | Up to 30 ft | Up to 26 ft |
| Cleaning coverage | Floor | Floor |
| Power | Corded | Cordless |
| Filtration | Basket | Basket |
| Scheduling | One-touch start | One-touch start |
| App and remote | Power-supply controls | Power-supply controls |
| Cable | Not listed | Cordless |
| Robot weight | 14.6 lb | 10 lb |
| Warranty | 1 years | 1.5 years |
Consider the stronger Pool Express option
Dolphin Nautilus AG and Niya Tracker 25 are compared feature by feature below. For a stronger Pool Express option, consider Dolphin Escape. Inground and above-ground pools up to 30 ft that need floor cleaning.
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