Help me choose
A stronger Pool Express option
Dolphin Liberty 200 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.
Liberty
Dolphin Liberty 200
Inground and above-ground pools that need floor and wall cleaning, without a power cord.
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 Liberty 200 or Niya Sonar 10: our take
Dolphin Liberty 200 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. Niya Sonar 10 has a published maximum pool length of 20 ft; the other model does not have a verified length in our source material. Dolphin Liberty 200 cleans floor and walls; Niya Sonar 10 cleans floor. Dolphin Liberty 200 lists Dual DC motors. Niya Sonar 10 lists Dual drive motors.
Filtration and debris
Both models include Basket.
Controls and day-to-day ownership
Dolphin Liberty 200 provides no fully published timer, app or remote specification; Niya Sonar 10 provides one-touch starts and power-supply controls. Both use cordless battery power.
Price, warranty and the decision
Dolphin Liberty 200 is listed at $999 and Niya Sonar 10 at $149; Niya Sonar 10 is $850 less. Dolphin Liberty 200 lists a 2-year warranty compared with 1 years for Niya Sonar 10. Dolphin Liberty 200 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 Liberty 200 | 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 | Not listed | No |
| Smartphone app | Not listed | No |
| Anti-tangle swivel | Not listed | Not listed |
| 3-year warranty | No | No |
| No recharging between cycles | No | 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 Liberty 200 stands out
Dolphin Liberty 200 is the better fit for inground and above-ground pools that need floor and wall cleaning, without a power cord.
- Adds wall climbing and scrubbing
- Carries a 2-year warranty instead of 1 years
Where Niya Sonar 10 stands out
Niya Sonar 10 is the better fit for shoppers prioritizing the lower $149 starting price.
- Is listed $850 lower
- Cleans the pool floor
Dolphin Liberty 200 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 Liberty 200 | Niya Sonar 10 |
|---|---|---|
| Best fit | Inground and above-ground pools that need floor and wall cleaning, without a power cord. | Above-ground pools up to 20 ft that need the floor vacuumed without a cord. |
| Starting price | $999 | $149 |
| Pool type | Inground, Above-ground | Inground, Above-ground |
| Maximum pool length | Not listed | Up to 20 ft |
| Cleaning coverage | Floor, Walls | Floor |
| Power | Cordless | Cordless |
| Filtration | Basket | Basket |
| Scheduling | Not listed | One-touch start |
| App and remote | Not listed | Power-supply controls |
| Cable | Cordless | Cordless |
| Robot weight | Not listed | 7.1 lb |
| Warranty | 2 years | 1 years |
Consider the stronger Pool Express option
Dolphin Liberty 200 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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