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Choose from top models from the top brands.

Dolphin Sigma versus Dolphin Nautilus CC Pro

Compare Features, Filters, and Warranty

Nautilus CC Pro or Sigma. Which wins?

Diving into the Nautilus CC Pro vs Sigma, our pool experts distinguish the key features you'll want to look for when choosing a pool robot. That way, you can decide between the Dolphin Sigma or Dolphin Nautilus CC Pro.

Sigma's top features...

Dolphin Gyroscope

Includes a Gyroscope

The Most Advanced Robot Ever - Sigma's gyroscopic sensors allow Sigma to clean deeper than any robot before.

Cleans the Waterline

The Dolphin Sigma cleans your entire pool - including the floor, wall, and waterline.

Why Waterline Cleaning is Needed →
Dolphin NanoFilter Cartridges

Includes NanoFilters™

The included Gen 2 NanoFilters capture smaller debris other cleaners miss.

Why NanoFilters are essential →

Nautilus CC Pro is missing...

Dolphin NanoFilter Cartridges

No NanoFilters™

Without these Gen 2 filters, the Nautilus CC Pro cannot clean smaller particles, such as algae, sand, and other debris.

Why NanoFilters are essential →
Dolphin Dual Motors

Lower Suction Power

Without the more powerful, commercial-grade motors found on the ProLine™, the Nautilus CC Pro has less suction power than other robots.

Restocking Fee

Restocking Fee

Sellers of the Nautilus CC Pro charge up to a 20% Restocking Fee. You'll want to avoid these units and look for a robot with a 30 Day Free Trial

Dolphin Robots with 30-Day Risk-Free Trials →

Compare essential features...

Dolphin ProLine
Dolphin Logo Sigma Nautilus CC Pro
Cleans Waterline Yes Yes
Nano
Filtration
Yes
No
MultiMedia
No
No
Leaf Bag
No
No
Dual Stabilizer Yes
No
Gyroscope Yes
No
3 Year Warranty Yes
No
No Restocking Fee Yes
No
30 Day Trial Yes
No
Shop Now Buy Buy

Shoppers also looked at... Compare Vs.

Dolphin Premier

Premier adds waterline cleaning, commercial grade motors, MultiMedia™, NanoFilters™, 3 year warranty + 30 Day Free Trial.

Dolphin Quantum

Features waterline cleaning, smart weekly timer, MaxBin™, NanoFilters™, and a 2 year warranty.

Key Differences - Why Sigma Wins

Sigma

  • Includes NanoFilters™ - Captures small debris other cleaners miss
  • Waterline Cleaning - Cleans the pool floor, wall, & waterline
  • Triple Commercial Grade Motors - 3 ProLine Motors filter 4500 GPH+
  • myDolphin Plus App - Schedule and clean the Sigma from anywhere
  • Gyroscope - Gyroscopic sensors control and monitor every movement
  • 3 Year Warranty - Longest warranty available

Nautilus CC Pro

  • No NanoFilters™ - Nautilus CC Pro cannot clean smaller debris and algae
  • Lower Suction Power - The Nautilus CC Pro has smaller motors when compared to the ProLine Commercial-Grade Motors
  • Restocking Fee - Unlike Poolbot's 30 Day Free Trial, sellers of the Nautilus CC Pro charge a 20% or more to return it
  • No Full Filter Indicator - Unlike other Premium robots, the Nautilus CC Pro doesn't alert you when the filters are full
  • Shorter Warranty - Nautilus CC Pro only has 2 year warranty, compared to a longer 3 year warranty available

Compare Dolphin Sigma vs Dolphin Nautilus CC Pro

Features Sigma Nautilus CC Pro
Standard Filter yes yes
NanoFilters™ yes no
Wall Climbing yes yes
Waterline Cleaning yes yes
Programmable Timer yes yes
Gyroscope yes no
Dual Stabilizer yes no
Anti-Tangle Swivel yes yes
3 Year Warranty yes no

Compare Features

NanoFilters™

Often overlooked, having a NanoFilter™ can be the most important part of a pool robot. Without it, small microscopic particulate will pass right through the standard filters found on most robots. These highly advanced filters capture more debris than any other filter on the market, leaving you with a cleaner, happier, and healthier pool.

NanoFilters™ capture fine dirt and debris that passes through the standard filters
yes
The Dolphin Sigma includes NanoFilters™
yes
The Dolphin Nautilus CC Pro does not include NanoFilters™

Standard Fine Filter

These standard filters help capture larger items such as small leaves and other debris, while maximizing flow rate. However, if your pool struggles with cloudy pool water, small algae, or sand. You many want to consider a unit with NanoFilters™.

NanoFilter™ vs Standard Filters
NanoFilter™ (left) vs Standard Filters (right)
yes
The Dolphin Sigma includes a standard filter.
yes
The Dolphin Nautilus CC Pro includes a standard filter.

Programmable Weekly Timer

An automatic pool cleaner should be automatic, right? With a programmable weekly timer, you can set the robot to clean at different intervals. So your pool robot can clean for you everyday of the week while you sit back and relax - without the need to manually turn it on and off everyday.

yes
The Dolphin Sigma includes a weekly timer.
yes
The Dolphin Nautilus CC Pro includes a weekly timer.

Dual Stabilizer

This essential piece to waterline cleaning allows the unit to cling to the walls of your pool - allowing a more precise and deeper clean at the waterline. Units with dual stabilizers have increased performance and agility while cleaning. It also doubles as an easy handle to pickup your robot from.

yes
The Dolphin Sigma includes a dual stabilizer.
yes
The Dolphin Nautilus CC Pro does not include a dual stabilizer.

Anti-Tangle Cable Swivel

Say goodbye to pesky tangled cords. An anti-tangle swivel allows the robot to move 360 degrees around your pool without the cord getting tangled. So you can sit back and enjoy while your pool robot vacuums and cleans for you.

yes
The Dolphin Sigma includes an anti-tangle swivel.
yes
The Dolphin Nautilus CC Pro includes an anti-tangle swivel.

3 Year Warranty

A robot is only as important as its warranty. By purchasing through an Authorized Maytronics Dealer such as Poolbots, you'll get the full warranty on all robotic pool cleaners available on Poolbots.com. Try any robotic pool cleaner risk-free for 30 days in your pool without any restocking fees.

yes
The Dolphin Sigma includes a 3 year warranty.
yes
The Dolphin Nautilus CC Pro includes a 2 year warranty.

All Videos

  • Top 3 Cleaners for 2023
  • Dolphin Sigma Review
  • Why You Need a Programmable Timer
  • Which Robotic Cleaner is Best For You?
  • Dolphin Premier vs Sigma
  • Open Box vs Refurbished Pool Robots
  • Waterline Cleaning: The Feature You Need
  • Why Hypergrip Tracks Are Necessary
  • A Gamechanger: Robotic Cleaners with a Gyroscope
  • Why You Need an Anti-Tangle Swivel
  • Pool Cleaning EasyRobotic Pool Cleaner
  • Don't Buy Without Waterline Cleaning
  • How To Clean Your Robot's Filters
  • The Importance of Waterline Cleaning
  • Why You Need Stabilizers
  • Dolphin Nautilus CC Supreme vs Sigma
  • Dolphin Nautilus CC Plus vs Nautilus CC Supreme
  • Three Problems with the Nautilus CC Plus
  • Budget vs Premium Dolphin Robotic Cleaners
  • Dolphin's Commercial Motors
  • Pressure Side Cleaner vs Automatic Robotic Pool Cleaner
  • Aquabot Elite Pro vs Dolphin Sigma
  • Waterline Cleaning vs Wall Climbing
  • The Benefits of an Anti-Tangle Swivel
  • 6 Must Have Features

Compare Specifications

Dolphin Sigma Dolphin Nautilus CC Pro

Part Number 99991036-SPLI 99996207-PCI
ASIN B07CZ1XVZX B0BP8G6T4Z
Waterline Cleaning Yes Yes
Multi-Media® No No
# of Filters Included: 2 1
Filter Cleaning Ultra-fine NanoFilters and Standard Filter Cartridge sets Top Access Filter Basket
Cleaning Coverage Floor, Walls, Waterline Floor, Walls and Waterline
Cleaning Cycle 2.5 hours 2 hours
Number of Brushes 4 2
Cable Length 60 ft 60 ft
Anti-Tangle Swivel Yes Yes
Pool Types In Ground In Ground
Maximum Pool Size 50 ft 50 ft
Pool Shape Rectangle, Oval, or Freeform Rectangle, Oval, or Freeform
Obstacles Steps, Ladder, Drain Cover, Ledges, Pop-Ups Steps, Ladder, Drain Cover, Ledges, Pop-Ups
Surface Concrete, Plaster, Gunite, Pebble, Tile, Vinyl Liner, Fiberglass Gunite, Fiberglass, Vinyl, Liner
Media-Alert® No No
Automated Weekly Timer Yes Yes
Remote operation Yes - Through App No
Restocking Fee No
Yes
Warranty 3 Years 2 Years
Read Reviews Dolphin Sigma Review Dolphin Nautilus CC Pro Review

View Other Top Comparisons

Compare all of the top robotic pool cleaners from Maytronics' Dolphin, Aquabot, & More.

Read Our Reviews

Learn more about the Dolphin Sigma and Dolphin Nautilus CC Pro in our reviews. Our in-depth pool robot reviews are written by our pool experts and will help you make an informed decision when purchasing a robotic pool cleaner for your pool. Read the Dolphin Nautilus CC Pro Review, Dolphin Sigma Review, or browser other top robotic pool cleaner reviews.

WHAT'S NEXT?

Try any in your own pool for 30 days.

Every pool deserves an intelligent robot. If you don't love it, simply return the robot. Unlike the other guys, we never charge a restocking fee or any other fees - meaning no restocking fee ever.

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