Help me choose
A stronger Pool Express option
Dolphin Echo and Dolphin Nautilus EON 100 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.
Echo
Dolphin Echo
Inground and above-ground pools up to 33 ft that need floor and wall cleaning with the least fuss.
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.
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 Echo or Dolphin Nautilus EON 100: our take
Dolphin Echo and Dolphin Nautilus EON 100 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 Echo is rated for pools up to 33 ft; Dolphin Nautilus EON 100 is rated up to 50 ft. Dolphin Echo cleans floor and walls; Dolphin Nautilus EON 100 cleans floor, walls, and waterline. Dolphin Echo lists 1 active brush and CleverClean navigation. Dolphin Nautilus EON 100 lists 2 active brushes and SmartMap navigation.
Filtration and debris
Both models include Basket.
Controls and day-to-day ownership
Dolphin Echo provides one-touch starts and power-supply controls; Dolphin Nautilus EON 100 provides a weekly timer and smartphone control. Dolphin Echo uses continuous corded power, while Dolphin Nautilus EON 100 uses cordless battery power. Dolphin Echo is listed at 14.8 lb versus 22.1 lb for Dolphin Nautilus EON 100; that 7.300000000000001 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Dolphin Echo is listed at $749 and Dolphin Nautilus EON 100 at $899; Dolphin Echo is $150 less. Dolphin Echo lists a 2-year warranty compared with 1 years for Dolphin Nautilus EON 100. Dolphin Echo and Dolphin Nautilus EON 100 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 Echo | Dolphin Nautilus EON 100 |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | No | YesEdge |
| Fine-debris filter included | No | No |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | No | YesEdge |
| Smartphone app | No | YesEdge |
| Anti-tangle swivel | No | 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 Echo stands out
Dolphin Echo is the better fit for shoppers prioritizing the lower $749 starting price.
- Carries a 2-year warranty instead of 1 years
- Runs from continuous plug-in power without a recharge between cycles
- Is listed $150 lower
- Weighs 14.8 lb versus 22.1 lb
Where Dolphin Nautilus EON 100 stands out
Dolphin Nautilus EON 100 is the better fit for owners who value cordless handling more than automatic scheduling and continuous power.
- Cleans the floor, walls and waterline instead of stopping below the tile line
- Uses 2 active brushes instead of 1
- Can start on a weekly schedule without a manual launch before every cycle
- Adds smartphone control
Dolphin Echo vs Dolphin Nautilus EON 100 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 Echo | Dolphin Nautilus EON 100 |
|---|---|---|
| Best fit | Inground and above-ground pools up to 33 ft that need floor and wall cleaning with the least fuss. | Inground and above-ground pools up to 50 ft with steps, benches or tanning ledges that need whole-pool cordless cleaning. |
| Starting price | $749 | $899 |
| Pool type | Inground, Above-ground | Inground, Above-ground |
| Maximum pool length | Up to 33 ft | Up to 50 ft |
| Cleaning coverage | Floor, Walls | Floor, Walls, Waterline |
| Power | Corded | Cordless |
| Filtration | Basket | Basket |
| Scheduling | One-touch start | Weekly schedule + app |
| App and remote | Power-supply controls | App control |
| Cable | Not listed | Cordless |
| Robot weight | 14.8 lb | 22.1 lb |
| Warranty | 2 years | 1 years |
Consider the stronger Pool Express option
Dolphin Echo and Dolphin Nautilus EON 100 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