Help me choose
A stronger Pool Express option
Dolphin T15 and Niya Tracker 35 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.
Niya Tracker
Niya Tracker 35
Inground and above-ground pools up to 40 ft that need floor, wall and waterline cleaning without a cord.
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 T15 or Niya Tracker 35: our take
Dolphin T15 and Niya Tracker 35 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 T15 is intended for above-ground pools, while Niya Tracker 35 is intended for inground and above-ground pools. Dolphin T15 is rated for pools up to 30 ft; Niya Tracker 35 is rated up to 40 ft. Dolphin T15 cleans floor; Niya Tracker 35 cleans floor, walls, and waterline. Dolphin T15 lists 1 active brush. Niya Tracker 35 lists 2 active brushes, Sonar navigation, and Dual drive motors.
Filtration and debris
Both models include Basket.
Controls and day-to-day ownership
Dolphin T15 provides one-touch starts and power-supply controls; Niya Tracker 35 provides one-touch starts. Dolphin T15 uses a 40 ft corded cable, while Niya Tracker 35 uses cordless battery power. Dolphin T15 is listed at 14 lb versus 19.2 lb for Niya Tracker 35; that 5.199999999999999 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Dolphin T15 is listed at $649 and Niya Tracker 35 at $539; Niya Tracker 35 is $110 less. Dolphin T15 lists a 2-year warranty compared with 1.5 years for Niya Tracker 35. Dolphin T15 and Niya Tracker 35 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 T15 | Niya Tracker 35 |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | No | YesEdge |
| Scrubs the waterline | No | YesEdge |
| Fine-debris filter included | No | No |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | No | No |
| Smartphone app | No | Not listed |
| 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 T15 stands out
Dolphin T15 is the better fit for above-ground pools up to 30 ft that need floor cleaning.
- Carries a 2-year warranty instead of 1.5 years
- Runs from continuous plug-in power without a recharge between cycles
- Weighs 14 lb versus 19.2 lb
Where Niya Tracker 35 stands out
Niya Tracker 35 is the better fit for shoppers prioritizing the lower $539 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 40 ft
- Is listed $110 lower
Dolphin T15 vs Niya Tracker 35 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 T15 | Niya Tracker 35 |
|---|---|---|
| Best fit | Above-ground pools up to 30 ft that need floor cleaning. | Inground and above-ground pools up to 40 ft that need floor, wall and waterline cleaning without a cord. |
| Starting price | $649 | $539 |
| Pool type | Above-ground | Inground, Above-ground |
| Maximum pool length | Up to 30 ft | Up to 40 ft |
| Cleaning coverage | Floor | Floor, Walls, Waterline |
| Power | Corded | Cordless |
| Filtration | Basket | Basket |
| Scheduling | One-touch start | One-touch start |
| App and remote | Power-supply controls | Not listed |
| Cable | 40 ft | Cordless |
| Robot weight | 14 lb | 19.2 lb |
| Warranty | 2 years | 1.5 years |
Consider the stronger Pool Express option
Dolphin T15 and Niya Tracker 35 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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