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ROBOVATIONS/CLASSIFICATION RECORD/ROBOT POOL CLEANERSRELEASED 2019.06REASSESSED 2026.06.11
Maytronics

Maytronics Dolphin Nautilus CC Plus

Fine-debris specialist with wall-climbing proven in thousands of residential pools. No new features, steady performance baseline for pool owners managing leaf and sand, which keeps the weekly routine predictable for pools up to 50 feet.

Maytronics Dolphin Nautilus CC Plus
FIT CHECK

Will the Maytronics Dolphin Nautilus CC Plus work in your pool?

Describe your pool using the controls. Each choice reads the spec sheet for you, flagging where the Maytronics Dolphin Nautilus CC Plus is built for your space and where it isn’t.

Pool type

Pool size

Debris load

Coverage you want

A classification of fit for the conditions you set — not a recommendation. Verdicts describe engineering design intent, not test results.

SPECIFICATION

The full spec sheet.

Priced below the category median, with every figure charted against the category below.

16.4 in16.8 inTOP10.4 in16.8 inSIDEDimensional drawing
Key specificationsManufacturer-published
Footprint
16.4 × 16.8 in · 10.4 in tall✓
Weight
20.8 lbs✓
Mapping & navigation

Fixed wall-climbing with brush-driven floor contact; no mapping or sensors.

Where it lands · ranked across 61 robot pool cleanersThis robotMedianTypical range
Runtime120min
90 min1,200 min
Bottom of range
Price$899
$290$4,250
Near median
Noise65dB
52 dB82 dB
Near median
Weight20.8lbs
7.9 lbs34.5 lbs
Near median

Position shows where the figure sits across the tracked category — not a quality judgment.

OWNERSHIP

Living with it.

Mature corded platform with a stable multi-year owner record; cable tangle is the chronic friction point.

Owner reports across 5+ years document consistent motor and brush durability. No firmware regression risk on an AC-powered unit. Cable tangle and impeller hair wrap are the recurring maintenance triggers, not component failure.

Owner effort~45 minhands-on per month
Consumables$80replaceable parts / yr
Reliability trend Stableowner-reported arc
What goes wrong · 5 documented · 0 self-recover
Common
Floating cable tangleReduced coverage, manual retrieval needed
Owner fixUnwind cord after each cycle; store on a caddy
Common
Filter basket cloggingReduced pickup, shorter effective run
Owner fixRinse top-load baskets after every use
Occasional
Impeller hair wrapReduced suction, motor strain
Owner fixClear impeller by hand after debris-heavy runs
Occasional
Brush bristle wearReduced scrubbing on walls and floor
Owner fixReplace brushes annually; roughly $45 per set
Rare
Drive track slippageStalls on steep wall sections
Owner fixInspect tracks seasonally; replace if worn
Upkeep routine
Weekly52×/yr
Emptying debris basket as needed depending on pool load (no cost).
Monthly12×/yr
Fine-debris brush cleaning or replacement (~$45 per replacement brush). · Filter cartridge rinsing; replacement every 4-6 months (~$28-35 per cartridge). · 50-foot cord inspection for tears or kinks; untangling as needed (no cost).
Yearly1×/yr
Impeller seal check and replacement if needed (~$35-50); motor bearings rarely require service.
Cost over time · past the sticker
PurchaseRunning cost
Year 1
$979
Year 3
$1,139
Year 5
$1,299

$899 to buy, then about $80 a year for the replaceable parts below. Over three years that is roughly $240 past the sticker price. Excludes electricity and any repairs.

What you replace
  • BrushMonthly$45
  • CartridgeMonthly$28–35

Replacement cadence from the maintenance schedule; prices shown where the source documents them.

Safety notes

CautionCorded power near water: Always inspect cord insulation before each use; never operate with a damaged or frayed cable.

CautionRemove before swimmers enter: Corded operation requires retrieval before anyone enters the pool; cord presents entanglement risk.

NoteDry storage between seasons: Prolonged submersion outside active season degrades cord jacket and impeller seals over time.

RECORD

How the assessment has moved.

Every announcement, release and reassessment behind the current classification.

Coming soon
Just launched
Active updates
Settled
Discontinued
  1. Apr 2024 · NewsNautilus CC Plus retail price drops to $599 across major US channels
  2. Jul 2025 · NewsNautilus CC Plus sustains uninterrupted US retail availability through sixth season
  3. Jul 2026 · AssessmentRobovations Score recorded at 67 of 100
  4. Jul 2026 · AssessmentRobovations Score revised 67 → 71
Common questions

What people actually ask.

5 answered
OperationDoes the Nautilus Plus handle above-ground pools?
No. The wall-climbing design and weight are engineered for in-ground pools only. Above-ground owners should use suction or pressure-side robots.
OperationWhat is the runtime before the battery drains?
The Nautilus Plus does not use a battery. It is powered by a 50-foot cord and AC plug. Runtime is unlimited as long as the cord reaches.
OwnershipHow often do I need to clean or replace the filter?
Owner reports document filter cleaning every 2-4 weeks depending on debris load. Fine-debris environments require more frequent maintenance than sand-heavy pools.
OperationCan the Nautilus Plus climb vinyl pool walls?
Yes. Thousands of vinyl-pool owners report successful wall coverage. Suction cups grip vinyl reliably; tiling is equally effective.
OperationWhat pool size range does the 50-foot cord cover?
Maytronics documents up to 33 feet in length. Larger pools require repositioning the cord or dual units for full coverage.

Analysis

Maytronics Dolphin Nautilus CC Plus in the analysis archive.

More in this category

Other robot pool cleaners we have classified.

Polaris 9450 SportII
Robot Pool Cleaners

Polaris 9450 Sport

In-ground pools to 50 ft, offline timer schedule, waterline scrub
Verified$999
72/100Capable
Maytronics Dolphin E10II
Robot Pool Cleaners

Maytronics Dolphin E10

Above-ground pools 5K-12K gallons, small in-ground, floor-only coverage, manual scheduling.
Verified$549
69/100Capable
Hayward TigerShark QCII
Robot Pool Cleaners

Hayward TigerShark QC

Small to medium in-ground pools with consistent pump schedules and light to moderate debris.
Verified$1,489
67/100Capable
Aquabot Breeze IQII
Robot Pool Cleaners

Aquabot Breeze IQ

Compact pools under 20k gallons, floor-only maintenance, budget-first operations
Discontinued$799
61/100Capable
Availability

Where it's sold

We may earn commission from qualifying purchases. This does not influence classification.

Amazon Checked Jul 31, 2026 $898In stock
Cite / Embed

Reference the Maytronics Dolphin Nautilus CC Plus classification.

Embed the Autonomy Ladder™ mark or copy the citation. The mark links back to this assessment and updates if the classification changes.

RobovationsAutonomy Ladder™Level IIAssisted AutonomyIndependent classification
Citation
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By RobovationsUpdated: Jun 22, 2026
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