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Our tested shortlist for inground, above-ground, cordless and small pools, with what each robot does and does not include.
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Niya is the value brand from Maytronics, the company that builds Dolphin robots. Every Niya cleaner is cordless: drop it in, press one button and lift it out when it parks itself at the wall. The Sonar and Tracker robots cover above-ground and inground pools from 20 to 40 ft, from floor-only cleaners under $200 to models that scrub the walls and waterline, and the Aquasweep handheld vacuums handle steps, corners and spas. Pool Express is an authorized Maytronics dealer.
$149
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$199
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$379
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$199
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$199
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$379
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$539
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$779
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$169
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$249
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The robots our Pool Pros recommend most, sold new with free shipping and a 30-day trial.
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$1,079
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$669
Regular price $899
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$2,399
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$1,649
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$1,749
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What changes from one line to the next, so you can shortlist before comparing individual models.
| Series | Models | Price Range | Cleaning Coverage | Included Filtration | Timer | Warranty |
|---|---|---|---|---|---|---|
| Niya Sonar | Niya Sonar 10, Niya Sonar 20, Niya Sonar 30, Niya Sonar Ray | $149–$379 | Floor, Walls, Waterline | Top-Load Basket | No Built-In Timer | 1 years |
| Niya Tracker | Niya Tracker 15, Niya Tracker 25, Niya Tracker 35, Niya Tracker 55 | $199–$779 | Floor, Walls, Waterline | Top-Load Basket | No Built-In Timer | 1–1.5 years |
| Niya Aquasweep | Niya Aquasweep S1, Niya Aquasweep S10 | $169–$249 | — | Top-Load Basket | No Built-In Timer | 1 years |
Niya robots come in two families that share the same platform. Sonar is the purple line sold through pool stores and online; Tracker is the teal line sold through select dealers. Within each family the number tells you the size of the job: the 10 and 15 clean the floor of pools up to 20 ft, the 20, 25 and the Sonar Ray handle floors up to 26 ft, the Sonar 30 and Tracker 35 climb walls and scrub the waterline in pools up to 33 and 40 ft, and the Tracker 55 adds Bluetooth app control.
What Niya leaves out is what keeps the price down: there is no weekly timer, no Wi-Fi and no caddy, filtration is a single coarse top-load basket, and warranties run one to one and a half years instead of the two or three on a Dolphin. If you want scheduled cleaning, ultra-fine filtration or a longer warranty, the Dolphin range is the step up; if you want a simple cordless cleaner at the lowest price from a manufacturer with a real service network, Niya is the right shelf.
No cable to manage. Every robot parks at the pool wall when the cycle ends or the battery runs low.
From the Sonar 20 and Tracker 25 up, sonar maps the pool so the robot cleans in efficient passes instead of bouncing off walls.
Seven to twenty pounds. The small models come out of the water with one hand or a hook on your pool pole.
Replacement filters, wheels, batteries and chargers are stocked part numbers, and service runs through the Maytronics network.
Floor, walls and waterline in pools up to 33 ft, three brushless motors and a two-hour run time, for less than most floor-only robots.
View the Niya Sonar 30Full coverage in pools up to 40 ft, a 2.5-hour cycle and Bluetooth app control with a 1.5-year warranty.
View the Niya Tracker 55A seven-pound floor cleaner for above-ground pools up to 20 ft that runs an hour per charge.
View the Niya Sonar 10A cordless handheld with a turbo mode, a 180-degree rotating brush and a 120-micron filter for the spots robots miss.
View the Niya Aquasweep S10Yes. Niya is a Maytronics brand, built by the same company as Dolphin. It is positioned below Dolphin: simpler, cordless, lower priced, with shorter warranties and fewer features.
Measure the longest side of your pool. Up to 20 ft, the Sonar 10 or Tracker 15; up to 26 ft, the Sonar 20, Sonar Ray or Tracker 25; up to 33 ft with wall and waterline cleaning, the Sonar 30; up to 40 ft, the Tracker 35 or Tracker 55. Only the Sonar 30, Tracker 35 and Tracker 55 climb walls.
Dolphin robots add longer warranties, weekly timers, Wi-Fi apps, fine and ultra-fine filtration and more cleaning modes. Niya robots are cordless, lighter and cheaper, with one coarse filter basket and manual starts. If you have fine debris or want scheduled cleaning, choose a Dolphin.
One year on the Sonar 10, 20, 30 and Sonar Ray, the Tracker 15 and both Aquasweep vacuums, and 1.5 years on the Tracker 25, 35 and 55. Pool Express is an authorized dealer, so the full Maytronics warranty applies and our Pool Pros handle any claim.
No. Maytronics lists the Sonar and Tracker robots as not available in Canada. Pool Express ships to the 48 contiguous United States.
With free shipping, a 30-day trial, and low price guarantee, we're proud to be one of the largest online retailers of all the top pool brands.
Free shipping on every order to the contiguous United States. Estimated delivery: 1–5 business days after you order.
Try it in your pool for 30 days. If it is not right for you, return it within 30 days of delivery for a full refund of the purchase price.
Find an identical, in-stock item advertised for less by an authorized U.S. dealer and we match the price before you buy.
Talk to our in-house pool professionals before and after the sale: 512-961-3881, Monday–Friday, 8:00 am–5:30 pm Central Time.
