Help me choose
A stronger Pool Express option
Dolphin Explorer E20 and Niya Sonar 10 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.
Explorer
Dolphin Explorer E20
Inground and above-ground pools up to 33 ft that need floor and wall cleaning.
Niya Sonar
Niya Sonar 10
Above-ground pools up to 20 ft that need the floor vacuumed 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 Explorer E20 or Niya Sonar 10: our take
Dolphin Explorer E20 and Niya Sonar 10 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 Explorer E20 is rated for pools up to 33 ft; Niya Sonar 10 is rated up to 20 ft. Dolphin Explorer E20 cleans floor and walls; Niya Sonar 10 cleans floor. Dolphin Explorer E20 lists 1 active brush and Dual DC motors. Niya Sonar 10 lists Dual drive 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 Explorer E20 uses a 40 ft corded cable, while Niya Sonar 10 uses cordless battery power. Dolphin Explorer E20 is listed at 14.5 lb versus 7.1 lb for Niya Sonar 10; that 7.4 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Dolphin Explorer E20 is listed at $699 and Niya Sonar 10 at $149; Niya Sonar 10 is $550 less. Dolphin Explorer E20 lists a 2-year warranty compared with 1 years for Niya Sonar 10. Dolphin Explorer E20 and Niya Sonar 10 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 Explorer E20 | Niya Sonar 10 |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | YesEdge | 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 | 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 Explorer E20 stands out
Dolphin Explorer E20 is the better fit for pools up to 33 ft.
- Adds wall climbing and scrubbing
- Carries a 2-year warranty instead of 1 years
- Is rated for pools up to 33 ft
- Runs from continuous plug-in power without a recharge between cycles
Where Niya Sonar 10 stands out
Niya Sonar 10 is the better fit for shoppers prioritizing the lower $149 starting price.
- Is listed $550 lower
- Weighs 7.1 lb versus 14.5 lb
Dolphin Explorer E20 vs Niya Sonar 10 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 Explorer E20 | Niya Sonar 10 |
|---|---|---|
| Best fit | Inground and above-ground pools up to 33 ft that need floor and wall cleaning. | Above-ground pools up to 20 ft that need the floor vacuumed without a cord. |
| Starting price | $699 | $149 |
| Pool type | Inground, Above-ground | Inground, Above-ground |
| Maximum pool length | Up to 33 ft | Up to 20 ft |
| Cleaning coverage | Floor, Walls | Floor |
| Power | Corded | Cordless |
| Filtration | Basket | Basket |
| Scheduling | One-touch start | One-touch start |
| App and remote | Power-supply controls | Power-supply controls |
| Cable | 40 ft | Cordless |
| Robot weight | 14.5 lb | 7.1 lb |
| Warranty | 2 years | 1 years |
Consider the stronger Pool Express option
Dolphin Explorer E20 and Niya Sonar 10 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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