Dolphin Liberty 400 vs Dolphin Nautilus EON 120D

Both clean the same surfaces. At about $1,429 and $1,199, the table below is where the difference in price has to be found.

Dolphin Liberty 400 robotic pool cleaner

Dolphin

Dolphin Liberty 400

~$1,429

Pool fit
~49 ft150 min on floor and walls at 13 sq ft/min
Filtration
No micron figure published
Retrieval
You fish out 17.9 lb

A cordless Dolphin that scrubs the waterline and talks to the MyDolphin Plus app.

Best for: Small pools where a three-year warranty matters more than range

Dolphin Nautilus EON 120D robotic pool cleaner

Dolphin

Dolphin Nautilus EON 120D

~$1,199

Pool fit
~49 ft150 min on floor and walls at 13 sq ft/min
Filtration
No micron figure published
Retrieval
You fish out 24.3 lb

Maytronics' EON 120D adds two things to the EON 100: real waterline scrubbing and a backwash filter, which rinses itself rather than needing to be hosed out by hand.

Best for: Owners who hate rinsing filters more than they hate lifting 24 lb

Specification comparison of the Dolphin Liberty 400 and the Dolphin Nautilus EON 120D
SpecificationDolphin Liberty 400Dolphin Nautilus EON 120D
Approx. price~$1,429~$1,199
TypeCordless floor+wall+waterlineCordless floor+wall+waterline
PowerCordlessCordless
CleansFloor, walls, waterlineFloor, walls, waterline
Pool fit~49 ft~49 ft
Maker's pool claim33 ft50 ft
Runtime, floor + walls150 min150 min
FilterCombined filter kit, plus an ultra-fine kit in the boxBackwash filter, top access
Weight17.9 lb24.3 lb
RetrievalYou fish out 17.9 lbYou fish out 24.3 lb
App controlYesYes
Caddy or docknot publishedIncluded
Pool typesin-ground, above-groundin-ground, above-ground
Surfacesvinyl, concrete, fiberglassnot published
Warranty3 years1 year
Cost per swim season$476 floor$1,199 floor

Dolphin Liberty 400: what it gives up

  • Rated to only 33 ft at $1,429
  • No battery capacity or charge time published
  • No auto-surfacing listed, so retrieval is by hook

Dolphin Nautilus EON 120D: what it gives up

  • One-year warranty on the Nautilus version, against three on the dealer EON 120D
  • 24.3 lb, 2.2 lb heavier than the EON 100
  • No micron rating published for the backwash filter

Full specifications: Dolphin Liberty 400 · Dolphin Nautilus EON 120D