Help me choose
A stronger Pool Express option
Dolphin Echo and Niya Tracker 35 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.
Echo
Dolphin Echo
Inground and above-ground pools up to 33 ft that need floor and wall cleaning with the least fuss.
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 Quantum
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
$1,649
Buy Dolphin QuantumDolphin Echo or Niya Tracker 35: our take
Dolphin Echo 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
Both robots are intended for inground and above-ground pools. Dolphin Echo is rated for pools up to 33 ft; Niya Tracker 35 is rated up to 40 ft. Dolphin Echo cleans floor and walls; Niya Tracker 35 cleans floor, walls, and waterline. Dolphin Echo lists 1 active brush and CleverClean navigation. 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 Echo provides one-touch starts and power-supply controls; Niya Tracker 35 provides one-touch starts. Dolphin Echo uses continuous corded power, while Niya Tracker 35 uses cordless battery power. Dolphin Echo is listed at 14.8 lb versus 19.2 lb for Niya Tracker 35; that 4.399999999999999 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Dolphin Echo is listed at $749 and Niya Tracker 35 at $539; Niya Tracker 35 is $210 less. Dolphin Echo lists a 2-year warranty compared with 1.5 years for Niya Tracker 35. Dolphin Echo and Niya Tracker 35 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 Echo | Niya Tracker 35 |
|---|---|---|
| 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 | Not listed |
| 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 Echo stands out
Dolphin Echo is the better fit for inground and above-ground pools up to 33 ft that need floor and wall cleaning with the least fuss.
- Carries a 2-year warranty instead of 1.5 years
- Runs from continuous plug-in power without a recharge between cycles
- Weighs 14.8 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 $210 lower
Dolphin Echo 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 Echo | Niya Tracker 35 |
|---|---|---|
| Best fit | Inground and above-ground pools up to 33 ft that need floor and wall cleaning with the least fuss. | Inground and above-ground pools up to 40 ft that need floor, wall and waterline cleaning without a cord. |
| Starting price | $749 | $539 |
| Pool type | Inground, Above-ground | Inground, Above-ground |
| Maximum pool length | Up to 33 ft | Up to 40 ft |
| Cleaning coverage | Floor, Walls | 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 | Not listed | Cordless |
| Robot weight | 14.8 lb | 19.2 lb |
| Warranty | 2 years | 1.5 years |
Consider the stronger Pool Express option
Dolphin Echo and Niya Tracker 35 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.
More robotic pool cleaner comparisons
Keep comparing without rebuilding the same specification table yourself.
Clear UV vs Clear S
Pool Express pick: Clear UV
Dolphin Quantum vs Clear S
Pool Express pick: Dolphin Quantum
Dolphin Premier vs Dolphin Sigma
Pool Express pick: Dolphin Premier
Dolphin Premier vs Dolphin Quantum
Pool Express pick: Dolphin Quantum
Dolphin Sigma vs Dolphin Quantum
Pool Express pick: Dolphin Quantum
Dolphin Cayman vs Dolphin Escape
Pool Express pick: Dolphin Cayman