Head-to-Head

Dolphin Nautilus EON 120D vs Dolphin Explorer E40

A side-by-side comparison of the Dolphin Nautilus EON 120D and Dolphin Explorer E40 — price, filtration, cleaning coverage, brushes and warranty — to help you pick the right Dolphin robotic pool cleaner.

Feature Nautilus EON 120D Explorer E40
Overview
Price $1199 MSRP $1499
LineupNautilus™ (cordless)Explorer™
Best forLongest cordless runtimeRetailer edition
Pool sizeUp to 50 ftUp to 50 ft
Cleaning coverageFloor + Walls + Waterline + StepsFloor + Walls + Waterline
Cleaning cycleUp to 4.5 hours per charge2.5 hours
SuctionBattery powered4,500 GPH
Scrubbing brushes1 (active)3 (active)
FiltrationMulti-layer top-load cartridgeFine filter basket
Standout features
Waterline cleaning Included Included
3-year warranty No Included
NanoFilters™ included No No
MultiMedia™ filtration No No
Media-Alert™ No No
Oversized leaf bag No No
MaxBin™ filtration No No
HyperBrush™ scrubbing No No
App control Included Included
Anti-tangle swivel No Included
Corded power No Included
Navigation & ownership
NavigationSmart Navigation with edge returnNot published
Weekly schedulingScheduling in the appWeekly timer
App controlMaytronicsOne (Wi-Fi)myDolphin™ Plus app
CableNone (cordless)Anti-tangle swivel cable
What is included
  • Multi-layer filter cartridges
  • Battery charger
  • Fine filter basket
  • App-connected power supply
Warranty1 year3 years
Cleaning coverage

Waterline cleaning

Why it matters

Dolphin Nautilus EON 120D vs Dolphin Explorer E40: how they compare

The Dolphin Nautilus EON 120D is part of the Nautilus™ (cordless) lineup — the step-up cordless Nautilus: up to 4.5 hours per charge, five cleaning modes and automatic edge return. It cleans pools up to 50 ft with floor + walls + waterline + steps coverage and Multi-layer top-load cartridge filtration, backed by a 1-year warranty.

The Dolphin Explorer E40 is part of the Explorer™ lineup — a retailer edition of the Explorer line with myDolphin™ Plus app control and a 3-year warranty. It handles pools up to 50 ft with floor + walls + waterline coverage and Fine filter basket filtration, backed by a 3-year warranty.

Our verdict: the Dolphin Nautilus EON 120D wins

Between these two, the Dolphin Nautilus EON 120D is the better buy — the step-up cordless Nautilus: up to 4.5 hours per charge, five cleaning modes and automatic edge return. It cleans with floor + walls + waterline + steps coverage and Multi-layer top-load cartridge filtration, backed by a 1-year warranty.

Our top recommendation: neither of these is in our two best lineups. For the best clean in this price range, step up to the Dolphin Quantum Pro from our ProLine™ — our top pick, highlighted at the top of this comparison.

Not sure yet? We're here to help

Every Dolphin Max-Series™ and ProLine™ robotic pool cleaner ships free and is backed by a full manufacturer warranty — explore our top-recommended robots and find the right fit for your pool.

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