Dolphin Sigma versus Dolphin Active 20

Compare Features, Filters, and Warranty

Active 20 or Sigma. Which wins?

Diving into the Active 20 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 Active 20.

Read Dolphin Sigma Review >

Read Dolphin Active 20 Review >

Compare essential features...


	Sigma	Active 20
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

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Dolphin Premier

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

Premier vs Sigma Premier vs Active 20

Dolphin Quantum

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

Quantum vs Sigma Quantum vs Active 20

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

Active 20

No NanoFilters™ - Cannot clean smaller debris and algae
Overshadowed by the newer Gen 2 models with more features - such as the ProLine and Max-Series
Shorter Warranty - Shorter warranty compared to the Dolphin ProLine

Compare Dolphin Sigma vs Dolphin Active 20

Features	Sigma	Active 20
Standard Filter
NanoFilters™
Wall Climbing
Waterline Cleaning
Programmable Timer
Gyroscope
Dual Stabilizer
Anti-Tangle Swivel
3 Year Warranty

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

The Dolphin Sigma includes NanoFilters™

The Dolphin Active 20 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)

The Dolphin Sigma includes a standard filter.

The Dolphin Active 20 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 Active 20 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 Active 20 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 Active 20 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 Active 20 includes a 2 year warranty.

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Compare Specifications

Part Number	99991036-SPLI	99996203-USW
ASIN	B07CZ1XVZX
Waterline Cleaning	Yes	Yes
Multi-Media®	No	No
# of Filters Included:	2	Ultra-Fine Filter Kit
Filter Cleaning	Ultra-fine NanoFilters and Standard Filter Cartridge sets	Top Access
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	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	No
Warranty	3 Years	2 Years
Read Reviews	Dolphin Sigma Review	Dolphin Active 20 Review

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.

Read Our Reviews

Learn more about the Dolphin Sigma and Dolphin Active 20 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 Active 20 Review, Dolphin Sigma Review, or browser other top robotic pool cleaner reviews.

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