Help me choose
A stronger Pool Express option
Aquabot X4 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.
Aquabot
Aquabot X4
Inground and above-ground pools up to 60 ft that need floor, wall and waterline 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 QuantumAquabot X4 or Niya Tracker 55: our take
Aquabot X4 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. Aquabot X4 is rated for pools up to 60 ft; Niya Tracker 55 is rated up to 40 ft. Each cleans floor, walls, and waterline, so coverage alone does not separate them. Aquabot X4 lists 1 active brush and Intelligent navigation. Niya Tracker 55 lists 2 active brushes, Sonar navigation, and Dual drive motors.
Filtration and debris
Both models include Basket.
Controls and day-to-day ownership
Aquabot X4 provides a weekly timer; Niya Tracker 55 provides one-touch starts and smartphone control. Aquabot X4 uses a 60 ft corded cable with an anti-tangle swivel, while Niya Tracker 55 uses cordless battery power. Aquabot X4 is listed at 40 lb versus 19.8 lb for Niya Tracker 55; that 20.2 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Aquabot X4 is listed at $747 and Niya Tracker 55 at $779; Aquabot X4 is $32 less. Aquabot X4 lists a 2-year warranty compared with 1.5 years for Niya Tracker 55. Aquabot X4 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 | Aquabot X4 | Niya Tracker 55 |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | Yes | Yes |
| Fine-debris filter included | No | No |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | YesEdge | No |
| Smartphone app | Not listed | 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 Aquabot X4 stands out
Aquabot X4 is the better fit for shoppers prioritizing the lower $747 starting price.
- Can start on a weekly schedule without a manual launch before every cycle
- Carries a 2-year warranty instead of 1.5 years
- Is rated for pools up to 60 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 owners who value cordless handling more than automatic scheduling and continuous power.
- Uses 2 active brushes instead of 1
- Has documented smartphone control
- Weighs 19.8 lb versus 40 lb
Aquabot X4 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 | Aquabot X4 | Niya Tracker 55 |
|---|---|---|
| Best fit | Inground and above-ground pools up to 60 ft that need floor, wall and waterline 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 | $747 | $779 |
| Pool type | Inground, Above-ground | Inground, Above-ground |
| Maximum pool length | Up to 60 ft | Up to 40 ft |
| Cleaning coverage | Floor, Walls, Waterline | Floor, Walls, Waterline |
| Power | Corded | Cordless |
| Filtration | Basket | Basket |
| Scheduling | Weekly schedule | One-touch start |
| App and remote | Not listed | App control |
| Cable | 60 ft with anti-tangle swivel | Cordless |
| Robot weight | 40 lb | 19.8 lb |
| Warranty | 2 years | 1.5 years |
Consider the stronger Pool Express option
Aquabot X4 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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