Help me choose
A stronger Pool Express option
Dolphin EON 120d and Dolphin Liberty 200 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.
EON
Dolphin EON 120d
Inground and above-ground pools up to 50 ft that need whole-pool cordless cleaning with minimal filter maintenance and a three-year warranty.
Liberty
Dolphin Liberty 200
Inground and above-ground pools that need floor and wall cleaning, without a power 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 EON 120d or Dolphin Liberty 200: our take
Dolphin EON 120d and Dolphin Liberty 200 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 EON 120d has a published maximum pool length of 50 ft; the other model does not have a verified length in our source material. Dolphin EON 120d cleans floor, walls, and waterline; Dolphin Liberty 200 cleans floor and walls. Dolphin EON 120d lists SmartMap navigation. Dolphin Liberty 200 lists Dual DC motors.
Filtration and debris
Dolphin EON 120d includes Basket and UltraFilter; Dolphin Liberty 200 includes Basket. That gives Dolphin EON 120d the clearer documented edge for fine silt, pollen and sand.
Controls and day-to-day ownership
Dolphin EON 120d provides a weekly timer and smartphone control; Dolphin Liberty 200 provides no fully published timer, app or remote specification. Both use cordless battery power.
Price, warranty and the decision
Dolphin EON 120d lists a 3-year warranty compared with 2 years for Dolphin Liberty 200. Dolphin EON 120d and Dolphin Liberty 200 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 EON 120d | Dolphin Liberty 200 |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | YesEdge | No |
| Fine-debris filter included | YesEdge | No |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | Yes | Not listed |
| Smartphone app | Yes | Not listed |
| Anti-tangle swivel | Not listed | Not listed |
| 3-year warranty | YesEdge | 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 EON 120d stands out
Dolphin EON 120d is the better fit for inground and above-ground pools up to 50 ft that need whole-pool cordless cleaning with minimal filter maintenance and a three-year warranty.
- Cleans the floor, walls and waterline instead of stopping below the tile line
- Includes filtration for sand, pollen and other fine debris
- Has documented smartphone control
- Carries a 3-year warranty instead of 2 years
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.
- Cleans floor and walls
- Cordless, battery powered
Dolphin EON 120d vs Dolphin Liberty 200 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 EON 120d | Dolphin Liberty 200 |
|---|---|---|
| Best fit | Inground and above-ground pools up to 50 ft that need whole-pool cordless cleaning with minimal filter maintenance and a three-year warranty. | Inground and above-ground pools that need floor and wall cleaning, without a power cord. |
| Starting price | See product | $999 |
| Pool type | Inground, Above-ground | Inground, Above-ground |
| Maximum pool length | Up to 50 ft | Not listed |
| Cleaning coverage | Floor, Walls, Waterline | Floor, Walls |
| Power | Cordless | Cordless |
| Filtration | Basket, UltraFilter | Basket |
| Scheduling | Weekly schedule + app | Not listed |
| App and remote | App control | Not listed |
| Cable | Cordless | Cordless |
| Robot weight | 24.3 lb | Not listed |
| Warranty | 3 years | 2 years |
Consider the stronger Pool Express option
Dolphin EON 120d and Dolphin Liberty 200 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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