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Open Box Dolphin Sigma Robotic Pool Cleaner

Open Box

Open Box Dolphin Sigma Robotic Pool Cleaner

$1329

Save hundreds on a Certified Open Box Dolphin Sigma robotic pool cleaner. With gyroscope, NanoFilters, and 3 year warranty, try risk-free for 30 days.

  • Certified Open Box Dolphin Pool Cleaner
  • Includes all parts and accessories
  • Fully tested and inspected with Maytronics testing software
  • Full 3 Year Warranty + 30 Day Risk-Free Trial
Find a Dealer
Shipping Icon Free 1-3 Day FedEx Shipping Support Icon 3 Year Warranty Included Shop Bag Icon 30 Day Risk-Free Trial & No Restocking Fees Shop Tag Icon Price Match Guarantee Need help? Speak to a Dolphin Pool Cleaner Specialist →

SAVE BIG ON CERTIFIED OPEN BOX

What is Certified Open Box?

It's a way to enjoy top-quality Dolphin robotic pool cleaners at a fraction of the original cost. Each item has been carefully inspected and tested to ensure it meets the highest standards, offering you the same performance and reliability as a new Dolphin Sigma. Certified Open Box items are fully functional, in like-new condition, and come with full warranties for peace of mind.

Why Dolphin Sigma?

Dolphin Sigma Robotic Pool Cleaner Motors

Three Commercial Motors

The Dolphin Sigma utilizes three commercial motors that are more powerful and more reliable. These ProLine™ exclusive motors take the pool cleaning to a new level.

Dolphin Sigma NanoFilters

NanoFilters™

Take your pool water to the next level with NanoFiltration™. These filters are able to capture what other robots miss. With included an NanoFilter™ set, experience the increased performance of the ProLine™.

Dolphin Sigma Gyroscope and WiFi

Gyroscope & Wi‑Fi

The Dolphin Sigma uses advanced technology with gyroscope sensors and Wi-Fi, enabling precise cleaning with SmartNav 3.0™. Connect and control your Sigma from anywhere via the app to schedule and manage your pool cleaning.

Dolphin Sigma Robotic Pool Cleaner

No Restocking Fee & 30 Day Risk‑Free Trial

Experience the Dolphin Sigma in your own pool for 30 days risk‑free. With no restocking fees and a 50% longer 3 year warranty, feel confident in buying the Dolphin Sigma. Try our most advanced robotic pool cleaner yet in your own pool today.

INTRODUCING THE NEW 2024 SIGMA

Our Most High-Tech Robot Yet.

Experience ProLine™ performance combined with unparalleled technology. With an onboard gyroscope, three powerful commercial-grade motors, quad brush design, and the myDolphin Plus app, experience the most advanced Dolphin pool robot ever made.

Dolphin Sigma Product Video

What's Included

With a plug and play design, all you need to get started is a standard outlet. Simply plug the Dolphin Cayman in and it gets to work. Everything you need to get started is included in the box.

Dolphin Sigma Robotic Pool Cleaner

Dolphin Premier

Dolphin Premier NanoFilters

NanoFilters™

Dolphin Premier Standard Filters

Standard Filters

Dolphin Premier Weekly Timer

Power Supply with myDolphinPlus

Dolphin Premier Robotic Pool Cleaner 60ft cord with Swivel

60ft Cord with Anti‑Tangle Swivel

Dolphin Premier Manual + Warranty

Manual + 3‑Year Warranty

TOP OF THE LINE

The Top ProLine™ Robot

The ultimate Dolphin pool robot. The Dolphin Sigma is our best robotic pool cleaner yet. Sigma combines all the advanced features you expect from a Dolphin ProLine™ pool robot and so much more.

Meet Sigma, the pinnacle of ProLine™ innovation. Experience the Dolphin Sigma in your pool for 30 days, risk-free. Enjoy no restocking fees and free shipping. Discover the ProLine™ difference today.

Dolphin Sigma Robotic Pool Cleaner
Dolphin Sigma Robotic Pool Cleaner Gyroscope

MORE ADVANCED.

Gyroscope Precision

Experience unparalleled precision with Dolphin Sigma's gyroscope technology. This innovative feature allows the Sigma to navigate your pool with pinpoint accuracy, ensuring every corner is covered. The gyroscope maintains balance and direction, preventing any missed spots and delivering a thorough clean every time.

GEN-2 FILTERS

NanoFiltration™

Embrace crystal-clear water with Dolphin Sigma’s NanoFilters. These high-tech NanoFilters capture the smallest debris and particles, ensuring your pool water is as clean as it is inviting. Say goodbye to cloudy water and hello to a pristine swimming experience with the power of NanoFilters.

Dolphin Sigma Robotic Pool Cleaner NanoFilters

THE ULTIMATE POOL FILTER

NanoFiltration

Experience a new level of clean. Crystal-clear water has never been easier. Powered by three commercial-grade motors and NanoFiltration™, the Dolphin Sigma unlocks a deeper clean. Through a process called sieving, these high-spun polyester filters are engineered to clean deeper than standard Dolphin mesh filters. Allowing you to get back to what is important, enjoying your pool.

Dolphin Premier NanoFilter Panel
Dolphin Sigma Robotic Pool Cleaner

FROM THE FLOORS TO THE WATERLINE

Waterline Cleaning Pro

Enjoy spotless pool edges with Dolphin Sigma's waterline cleaning feature. This innovative function targets the waterline, scrubbing away dirt and oils that accumulate at the surface. Maintain a pristine pool from top to bottom with effective waterline cleaning.

Dolphin Sigma’s HyperGrip tracks provide superior traction on all pool surfaces, ensuring efficient cleaning and excellent climbing ability. These tracks grip firmly, allowing the Sigma to maneuver easily and clean thoroughly, even on vertical surfaces.

THREE MOTORS. ONE ROBOT.

Triple Commercial-Grade Motors

The Dolphin Sigma uses three commercial-grade motors for enhanced power and efficiency. Taken from the Dolphin Wave Commercial lineup, the Dolphin Sigma brings commercial power at a lower cost with more features for residential pools. These powerful motors work in harmony to provide superior suction and maneuverability, tackling even the most stubborn dirt and debris. Enjoy a spotless pool with the unmatched cleaning performance of triple motors.

Benefit from continuous cleaning with Dolphin Sigma's efficient power management. Spend more time enjoying your pool and less time worrying about recharging, thanks to the Sigma’s enduring performance and reliable energy use.

Dolphin Sigma Robotic Pool Cleaner Triple Commercial-Grade Motors
Dolphin Sigma Robotic Pool Cleaner Quad Brushes

SCRUB AND VACUUM LIKE NEVER BEFORE

Quad Scrubbing Brushes

Achieve a deeper clean with Dolphin Sigma's quad brushes. Designed to scrub and agitate dirt and algae from every surface, these four powerful brushes ensure no grime is left behind. Your pool walls and floor will shine with the comprehensive cleaning action of quad brushes.

A STEP ABOVE

SmartNav 3.0™ Scanning

Unlock intelligent pool cleaning with SmartNav 3.0. This advanced navigation system scans and maps your pool, optimizing the cleaning path for maximum efficiency. Ensure every inch of your pool is covered with the smart, precise cleaning of SmartNav 3.0™.

Dolphin Sigma SmartNav

WITH A PRESS OF A BUTTON

Always Connected with Wi-Fi

Stay connected with Dolphin Sigma’s Wi-Fi capability. Effortlessly control and monitor your pool cleaner from anywhere using your smartphone or tablet. Schedule cleanings, check status, and receive updates with the convenience of Wi-Fi connectivity.

Dolphin Sigma Robotic Pool Cleaner Power Supply
Dolphin Sigma Robotic Pool Cleaner Siri

MYDOLPHIN PLUS APP

"Hey Siri, Clean my Pool"

Take pool maintenance to the next level with the MyDolphin Plus app. This intuitive app allows you to customize cleaning schedules, choose cleaning modes, and receive real-time notifications. Manage your Dolphin Sigma with ease and precision through the MyDolphin Plus app.

With voice command, tell Siri "Hey Siri, Clean my pool" and your Sigma gets to work. With cusotmizable scheduler, manual control, cleaning history, and more, the Dolphin Sigma unlocks a plethora of features not seen before in any other pool robot.

PATENTED TECHNOLOGY

360 Anti-Tangle Swivel

Experience seamless cleaning with Dolphin Sigma’s Anti-Tangle Swivel. This innovative feature prevents the cable from tangling, ensuring uninterrupted operation and ease of use. Enjoy hassle-free pool cleaning with the reliable anti-tangle swivel.

Dolphin Sigma Robotic Pool Cleaner Anti-Tangle Swivel
Dolphin Sigma Robotic Pool Cleaner on Rock

TRY RISK-FREE FOR 30 DAYS

3 Year Warranty & 30 Day Risk-Free Trial

With a longer 3-year warranty and risk-free 30 day trial, try the Dolphin Sigma in your own pool. Our commitment to quality ensures your robotic pool cleaner is built to last. If you're not completely satisfied, return it hassle-free. Enjoy full peace of mind with a 50% longer 3 year warranty and risk-free trial.

Where to Buy

Buy from us or shop all Authorized Dolphin Dealers and buy your Open Box Dolphin Sigma Robotic Pool Cleaner today.

Open Box Dolphin Sigma Robotic Pool Cleaner

NEW

Open Box Dolphin Sigma Robotic Pool Cleaner

$1329

Save hundreds on a Certified Open Box Dolphin Sigma robotic pool cleaner. With gyroscope, NanoFilters, and 3 year warranty, try risk-free for 30 days.

Find a Dealer
Poolbots Logo

With over 5,000 Dolphin robots in stock, Poolbots carries all the top Dolphin robotic pool cleaners.

Pool Express Logo

From ProLine to Max-Series, Pool Express sells all the top Maytronics pool robots.

Pool Robots Logo

Carrying all the top Dolphin lineups, PoolRobots paves the way in the pool industry.