Dolphin Liberty 400 vs Dolphin Liberty 600

On the published numbers, the Dolphin Liberty 600’s battery covers a pool of about 55 ft against about 49 ft for the Dolphin Liberty 400. Neither maker's rating goes beyond the arithmetic by more than the margin allowed. Every other published specification is in the table, with the rows where they differ tinted.

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 Liberty 600 robotic pool cleaner

Dolphin

Dolphin Liberty 600

~$1,729

Pool fit
~55 ft180 min on floor and walls at 13 sq ft/min
Filtration
No micron figure published
Retrieval
You fish out 25.8 lb

Maytronics' big cordless robot runs a three-hour cycle over floor, walls and waterline and is rated for pools up to 50 feet.

Best for: A full-size in-ground pool whose owner wants a cordless Dolphin with a long warranty

Specification comparison of the Dolphin Liberty 400 and the Dolphin Liberty 600
SpecificationDolphin Liberty 400Dolphin Liberty 600
Approx. price~$1,429~$1,729
TypeCordless floor+wall+waterlineCordless floor+wall+waterline
PowerCordlessCordless
CleansFloor, walls, waterlineFloor, walls, waterline
Pool fit~49 ft~55 ft
Maker's pool claim33 ft50 ft
Runtime, floor + walls150 min180 min
FilterCombined filter kit, plus an ultra-fine kit in the boxMulti-layer filter, plus an ultra-fine kit in the box
Weight17.9 lb25.8 lb
RetrievalYou fish out 17.9 lbYou fish out 25.8 lb
App controlYesYes
Pool typesin-ground, above-groundin-ground, above-ground
Surfacesvinyl, concrete, fiberglassnot published
Warranty3 years3 years
Cost per swim season$476 floor$576 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 Liberty 600: what it gives up

  • 25.8 lb with no auto-surfacing listed
  • $1,729, the most expensive cordless Dolphin here
  • No battery or charge-time figures published
  • Beatbot and Aiper robots at half the price publish runtimes of four hours or more
  • It uses the Maytronics One app where the Liberty 400 uses MyDolphin Plus, so owners of both run two apps

Full specifications: Dolphin Liberty 400 · Dolphin Liberty 600