Dolphin Sigma versus Dolphin Nautilus CC Plus
Compare Features, Filters, and Warranty
Nautilus CC Plus or Sigma. Which wins?
The Dolphin Sigma is the better pool robot when compared to the Dolphin Nautilus CC Plus, thanks to Sigma's myDolphin Plus App, Triple Commercial-Grade Motors, Gyroscope, longer warranty, and included NanoFilters – giving it the edge over the Dolphin Nautilus CC Plus. Sigma’s powerful motors clean the whole pool, including the waterline, and deliver top-notch performance, making the Sigma one of the best pool robots available.
Sigma's top features...
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 →
Includes NanoFilters™
The included Gen 2 NanoFilters capture smaller debris other cleaners miss.
Why NanoFilters are essential →Nautilus CC Plus is missing...
Missing MaxBin™
The Dolphin Nautilus CC Plus is missing the MaxBin™, an oversized filter basket that is easier to clean and up to 225% larger.
Read About MaxBin™ →No Waterline Cleaning
Without waterline cleaning, the Dolphin Nautilus CC Plus won't clean the dirtest part of your pool. The Nautilus CC Plus only has partial wall climbing.
Why Waterline Cleaning is Needed →
No NanoFilters™
Without these Gen 2 filters, the Nautilus CC Plus cannot clean smaller particles, such as algae, sand, and other debris.
Why NanoFilters are essential →Compare essential features...
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|---|---|---|
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Sigma | Nautilus CC Plus |
| Cleans Waterline | Yes | No |
| NanoFiltration | 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 Plus
- No Waterline Cleaning - Won't clean the dirtest part of your pool
- Utilizes the smaller Gen 1 filter cartridges, rather than utilizing the newer NanoFiltration™ or MaxBin™
- No NanoFilters™ - Nautilus CC Plus cannot clean smaller debris and algae
- Standard Brush - No HyperBrush like on similarly priced models such as Dolphin Cayman
- Overshadowed by the newer Gen 2 models with more features - such as the ProLine and Max-Series
Compare Dolphin Sigma vs Dolphin Nautilus CC Plus
| Features | Sigma | Nautilus CC Plus |
|---|---|---|
| Standard Filter |  |
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| NanoFilters™ | |
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| Wall Climbing | |
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| Waterline Cleaning | |
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| Programmable Timer | |
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| Gyroscope | |
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| Dual Stabilizer | |
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| Anti-Tangle Swivel | |
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| 3 Year Warranty | |
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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.
The Dolphin Sigma includes NanoFilters™
The Dolphin Nautilus CC Plus 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™.
The Dolphin Sigma includes a standard filter.
The Dolphin Nautilus CC Plus 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.
The Dolphin Sigma includes a weekly timer.
The Dolphin Nautilus CC Plus 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.
The Dolphin Sigma includes a dual stabilizer.
The Dolphin Nautilus CC Plus 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.
The Dolphin Sigma includes an anti-tangle swivel.
The Dolphin Nautilus CC Plus 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.
The Dolphin Sigma includes a 3 year warranty.
The Dolphin Nautilus CC Plus includes a 2.5 year warranty.
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Compare Specifications
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| Part Number | 99991036-SPLI | 99996403-PCF |
|---|---|---|
| ASIN | B07CZ1XVZX | B00Q8M0NWE |
| Waterline Cleaning | Yes | No |
| Multi-Media® | No | No |
| # of Filters Included: | 2 | 1 |
| Filter Cleaning | Ultra-fine NanoFilters and Standard Filter Cartridge sets | Top Access |
| Cleaning Coverage | Floor, Walls, Waterline | Floor and Walls |
| 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 | 40 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 | 2.5 Years |
| Read Reviews | Dolphin Sigma Review | Dolphin Nautilus CC Plus Review |
View Other Top Comparisons
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Read Our Reviews
Learn more about the Dolphin Sigma and Dolphin Nautilus CC Plus 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 Plus Review, Dolphin Sigma Review, or browser other top robotic pool cleaner reviews.
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WHAT'S NEXT?
Try 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.
