Help me choose
A stronger Pool Express option
Dolphin EON 120d and Dolphin Nautilus CC Pro 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.
Nautilus
Dolphin Nautilus CC Pro
Inground pools up to 50 ft that need floor, wall and waterline cleaning.
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 Nautilus CC Pro: our take
Dolphin EON 120d and Dolphin Nautilus CC Pro 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
Dolphin EON 120d is intended for inground and above-ground pools, while Dolphin Nautilus CC Pro is intended for inground pools. Both are rated for pools up to 50 ft. Each cleans floor, walls, and waterline, so coverage alone does not separate them. Dolphin EON 120d lists SmartMap navigation. Dolphin Nautilus CC Pro lists CleverClean navigation.
Filtration and debris
Dolphin EON 120d includes Basket and UltraFilter; Dolphin Nautilus CC Pro includes Basket. That gives Dolphin EON 120d the clearer documented edge for fine silt, pollen and sand.
Controls and day-to-day ownership
Both models provide a weekly timer and smartphone control. Dolphin EON 120d uses cordless battery power, while Dolphin Nautilus CC Pro uses a 60 ft corded cable with an anti-tangle swivel.
Price, warranty and the decision
Dolphin EON 120d lists a 3-year warranty compared with 2 years for Dolphin Nautilus CC Pro. Dolphin EON 120d and Dolphin Nautilus CC Pro 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 Nautilus CC Pro |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | Yes | Yes |
| Fine-debris filter included | YesEdge | No |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | Yes | Yes |
| Smartphone app | Yes | Yes |
| Anti-tangle swivel | Not listed | Yes |
| 3-year warranty | YesEdge | No |
| No recharging between cycles | No | YesEdge |
| 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 owners who value cordless handling more than automatic scheduling and continuous power.
- Includes filtration for sand, pollen and other fine debris
- Carries a 3-year warranty instead of 2 years
Where Dolphin Nautilus CC Pro stands out
Dolphin Nautilus CC Pro is the better fit for inground pools up to 50 ft that need floor, wall and waterline cleaning.
- Runs from continuous plug-in power without a recharge between cycles
- Cleans floor, walls and waterline
Dolphin EON 120d vs Dolphin Nautilus CC Pro 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 Nautilus CC Pro |
|---|---|---|
| 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 pools up to 50 ft that need floor, wall and waterline cleaning. |
| Starting price | See product | $1,199 |
| Pool type | Inground, Above-ground | Inground |
| Maximum pool length | Up to 50 ft | Up to 50 ft |
| Cleaning coverage | Floor, Walls, Waterline | Floor, Walls, Waterline |
| Power | Cordless | Corded |
| Filtration | Basket, UltraFilter | Basket |
| Scheduling | Weekly schedule + app | Weekly schedule + app |
| App and remote | App control | App control |
| Cable | Cordless | 60 ft with anti-tangle swivel |
| Robot weight | 24.3 lb | Not listed |
| Warranty | 3 years | 2 years |
Consider the stronger Pool Express option
Dolphin EON 120d and Dolphin Nautilus CC Pro 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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