Robotic pool cleaner comparison

Dolphin Echo vs Dolphin EON 100

A side-by-side comparison of pool fit, cleaning coverage, filtration, controls and the better Pool Express option.

By Brian Williamson, Pool Express product specialist
Updated November 9, 2026

Better alternative

A stronger Pool Express option

Dolphin Echo and Dolphin 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.

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Echo

Dolphin Echo

Inground and above-ground pools up to 33 ft that need floor and wall cleaning with the least fuss.

Listed price $749

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EON

Dolphin EON 100

Inground and above-ground pools up to 50 ft with steps, benches or tanning ledges that need whole-pool cordless cleaning, with a two-year warranty.

Listed price See product

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A better alternative

What we recommend instead

Pool Express pick

Dolphin Quantum

Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.

$1,649

Buy Dolphin Quantum

Buying guidance

Dolphin Echo or Dolphin EON 100: our take

Dolphin Echo and Dolphin 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 EON 100 is rated up to 50 ft. Dolphin Echo cleans floor and walls; Dolphin EON 100 cleans floor, walls, and waterline. Dolphin Echo lists 1 active brush and CleverClean navigation. Dolphin EON 100 lists 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 EON 100 provides a weekly timer and smartphone control. Dolphin Echo uses continuous corded power, while Dolphin EON 100 uses cordless battery power. Dolphin Echo is listed at 14.8 lb versus 22.1 lb for Dolphin EON 100; that 7.300000000000001 lb difference matters when lifting the robot from the pool.

Price, warranty and the decision

Each lists a 2-year manufacturer warranty. Dolphin Echo and Dolphin 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 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 inground and above-ground pools up to 33 ft that need floor and wall cleaning with the least fuss.

Runs from continuous plug-in power without a recharge between cycles
Weighs 14.8 lb versus 22.1 lb

Where Dolphin EON 100 stands out

Dolphin 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
Can start on a weekly schedule without a manual launch before every cycle
Adds smartphone control
Is rated for pools up to 50 ft