Help me choose
A stronger Pool Express option
Dolphin Nautilus EON 100 and Dolphin Premium 30 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 Nautilus EON 100
Inground and above-ground pools up to 50 ft with steps, benches or tanning ledges that need whole-pool cordless cleaning.
Premium
Dolphin Premium 30
Inground and above-ground pools up to 50 ft that need floor, wall and waterline cleaning on a weekly timer.
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 Nautilus EON 100 or Dolphin Premium 30: our take
Dolphin Nautilus EON 100 and Dolphin Premium 30 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. Both are rated for pools up to 50 ft. Each cleans floor, walls, and waterline, so coverage alone does not separate them. Dolphin Nautilus EON 100 lists 2 active brushes and SmartMap navigation. Dolphin Premium 30 lists 2 active brushes and CleverClean navigation.
Filtration and debris
Dolphin Nautilus EON 100 includes Basket; Dolphin Premium 30 includes Basket and UltraFilter. Dolphin Premium 30 has the clearer documented edge for fine silt, pollen and sand.
Controls and day-to-day ownership
Dolphin Nautilus EON 100 provides a weekly timer and smartphone control; Dolphin Premium 30 provides a weekly timer and power-supply controls. Dolphin Nautilus EON 100 uses cordless battery power, while Dolphin Premium 30 uses continuous corded power. Dolphin Nautilus EON 100 is listed at 22.1 lb versus 18.4 lb for Dolphin Premium 30; that 3.700000000000003 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Dolphin Nautilus EON 100 is listed at $899 and Dolphin Premium 30 at $1,279; Dolphin Nautilus EON 100 is $380 less. Dolphin Nautilus EON 100 lists a 1-year warranty compared with 2 years for Dolphin Premium 30. Dolphin Nautilus EON 100 and Dolphin Premium 30 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 Nautilus EON 100 | Dolphin Premium 30 |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | Yes | Yes |
| Fine-debris filter included | No | YesEdge |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | Yes | Yes |
| Smartphone app | YesEdge | No |
| Anti-tangle swivel | Not listed | Yes |
| 3-year warranty | No | 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 Nautilus EON 100 stands out
Dolphin Nautilus EON 100 is the better fit for shoppers prioritizing the lower $899 starting price.
- Adds smartphone control
- Is listed $380 lower
Where Dolphin Premium 30 stands out
Dolphin Premium 30 is the better fit for inground and above-ground pools up to 50 ft that need floor, wall and waterline cleaning on a weekly timer.
- Includes filtration for sand, pollen and other fine debris
- Carries a 2-year warranty instead of 1 years
- Runs from continuous plug-in power without a recharge between cycles
- Weighs 18.4 lb versus 22.1 lb
Dolphin Nautilus EON 100 vs Dolphin Premium 30 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 Nautilus EON 100 | Dolphin Premium 30 |
|---|---|---|
| Best fit | Inground and above-ground pools up to 50 ft with steps, benches or tanning ledges that need whole-pool cordless cleaning. | Inground and above-ground pools up to 50 ft that need floor, wall and waterline cleaning on a weekly timer. |
| Starting price | $899 | $1,279 |
| Pool type | Inground, Above-ground | Inground, Above-ground |
| Maximum pool length | Up to 50 ft | Up to 50 ft |
| Cleaning coverage | Floor, Walls, Waterline | Floor, Walls, Waterline |
| Power | Cordless | Corded |
| Filtration | Basket | Basket, UltraFilter |
| Scheduling | Weekly schedule + app | Weekly schedule |
| App and remote | App control | Power-supply controls |
| Cable | Cordless | Not listed |
| Robot weight | 22.1 lb | 18.4 lb |
| Warranty | 1 years | 2 years |
Consider the stronger Pool Express option
Dolphin Nautilus EON 100 and Dolphin Premium 30 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.
More robotic pool cleaner comparisons
Keep comparing without rebuilding the same specification table yourself.
Clear UV vs Clear S
Pool Express pick: Clear UV
Dolphin Quantum vs Clear S
Pool Express pick: Dolphin Quantum
Dolphin Premier vs Dolphin Sigma
Pool Express pick: Dolphin Premier
Dolphin Premier vs Dolphin Quantum
Pool Express pick: Dolphin Quantum
Dolphin Sigma vs Dolphin Quantum
Pool Express pick: Dolphin Quantum
Dolphin Cayman vs Dolphin Escape
Pool Express pick: Dolphin Cayman