Gyroscope Mobility System
With Gyroscope Mobility, quad independent brushes and triple motors, Sigma was designed from the ground up for best in class performance. For the first time ever, a consumer robot knows exactly where it is.
Gyro AdvantageGet the highlights.
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Onboard gyroscope. For the first time ever, a consumer robot knows exactly where it is.
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Triple 3,000 RPM DC motors. The most powerful suction and flow rate ever in a robot.
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Quad scrubbing brushes. Attacking the bacteria, algae and biofilm other cleaners pass over.
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NanoFilter™ cartridges. Capturing even the smallest particles, down to 2 microns.
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myDolphin Plus app. Schedule, steer and track every clean from anywhere.
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The pinnacle of the Dolphin ProLine™. Commercial grade. Prosumer price.
Explore the new Dolphin Sigma
The Laws of Physics. Reinterpreted.
Take whatever preconceived notions you may have about pool robots and throw them out. The 2026 Sigma sets the new standard with unparalleled technology - onboard gyroscope, powerful triple motors, a quad brush design, and the myDolphin Plus Smartphone App.
Our Largest Cartridges Ever
Leaves? Algae? No problem. The Dolphin Sigma includes not one, but two, Oversized Filter Cartridges. Sigma's Ultra-Fine NanoFilter™ even enables it to clean down to 2 microns.
Explore NanoFilters
Triple High RPM Motor Power
Sigma features not one, not two, but 3 onboard high-output DC motors to deliver a flow rate 500 gallons per hour higher for the most powerful suction and flow rate ever in a robot.
3 Motor Advantage
SmartNav 3.0 Navigation
Gyroscope guided SmartNav 3.0 Robotic Scanning calculates the optimal pattern for your pool, so every inch is reached without aimless wandering or overlapping paths.
Smarter Navigation
Weekly Timer & myDolphin Plus App
Control your Dolphin from anywhere. Sigma can be scheduled, programmed, and operated from the myDolphin Plus app, and its built-in weekly timer keeps your pool clean even when you're out of town.
Explore the App
Quad Scrubbing Brushes
Four separately controlled brushes spin independently for the most precise navigation ever. Sigma has the unique ability to spin one side forward and one back, for maximum agility.
4 Brush AdvantagePerformance
The best Dolphin ever made.
The new flagship of Dolphin pool cleaners
Performance. Redefined.
It's the best Dolphin pool robot ever made. And it's easy to see why the new Dolphin Sigma is the answer to the changing demands of pool owners everywhere. With groundbreaking gyroscope technology, commercial grade motors, and a level of efficiency never seen before, the future has already begun. The newest Dolphin features not one, not two, but three highly efficient, commercial grade DC motors for the most powerful suction and navigation ever in a robot.
Commercial grade. Prosumer price.
Our Tribute to the Beauty of Ideas
So what exactly makes the Dolphin Sigma the most progressive pool cleaner in the world? It's rather simple. The Sigma provides visionary mobility, inspiring design and a whole new focus on sustainability. The result is a technologically superior robotic pool cleaner. The absolute best warranty available and legendary Dolphin pool cleaner performance are standard. Discover new groundbreaking features that represent the current state of pool cleaner technology.
Gyroscope
Knows exactly where it is.
Another Dolphin first
Gyroscopic Stabilization & Movement
It's natural to want to keep things under control. It's natural, that is, if you're the new Sigma. Long suggested to be part of the ultimate in pool robot mobility, Gyroscopic technology is game changing. It's been called one of the greatest engineering accomplishments in the pool cleaner industry. Not surprisingly, Dolphin engineers introduced it. But you don't need to be an engineer to understand the benefits of gyroscopic control.
For many years the random pattern of turning made even the best engineered robots inefficient. Random patterns destroy both performance and efficiency. Instead of wandering aimlessly around the pool, the new Sigma employs gyroscopic sensors and triple motors to precisely control and monitor every movement.
Our inventory of what's technically possible
The Gyro Advantage
In Sigma lives the will to break with standards. And to inspire conviction. In the past, pool robots could not resolve orientation or tilt during movement. But when you add a 3-axis gyroscope, everything changes. These high tech sensors detect and measure the rate of rotation of an object around an axis. If the robot rolls, electrical sensors send data to the microprocessor. Gyroscopic sensors provide the magnitude of the angular velocity around the 3 axis of rotation - roll, pitch and yaw.
Gyros are essential components of airplanes, aircraft and even the Mars rover. First used for expensive military applications, Gyros detect the orientation of the robot by measuring linear acceleration and the angular rotational velocity. The advanced sensors monitor and control position, orientation, direction, and rotation. Sigma gyroscopes provide constant, precise information to the microprocessor for more effective cleaning coverage, superior climbing and wall/waterline cleaning.
Pushes energy efficiency even further
Creating More by Consuming Less
There's a new mandate that guides the engineering principles of Dolphin. Conserving resources while maximizing output. That's why the gyroscope enabled Sigma operates on nearly 90% less power than old fashioned pressure side and suction side cleaners. While other pool cleaners can expend a massive 1800 watts of power, the Sigma requires about 90% less energy.
Sigma's triple 24-volt, 3000 RPM DC motors propel its quad scrubbing brushes over every square inch of the pool effortlessly, and with a huge leap ahead in efficiency. This economical balance of power and efficiency is what keeps the Sigma ahead of traditional, power-hungry robots. Even weight distribution between front and rear promotes better balance and allows electrical energy to be converted into propulsion more efficiently. But that's not the whole efficiency story. Sigma's 2.5 hour cleaning cycle means it cleans quickly and thoroughly so it's also faster.
Superior surface, wall & waterline cleaning
Powerful in All Conditions
In a radical departure from ordinary cleaners, the Sigma pool cleaner was designed to clean all pool surfaces including the tile and waterline with pinpoint precision. For the first time ever, a consumer robot is equipped with an advanced Gyroscope to deliver precise control and positioning of the robot. When other cleaners fall from the wall, the all-new gyroscope and triple 3,000 RPM DC motors allow Sigma to remain firmly planted against the wall all the way to the top. Sigma Dolphin pool cleaners reach every square inch of the pool as four high speed spinning brushes handle difficult colonies of bacteria, algae, and biofilm. Sigma reaches deep inside pool corners, so you don't have to.
Design & power
Commercial grade. Prosumer price.
You can only reach new peaks if you're willing to push your limits.
Designed from Scratch. Pushed to the Limit.
Yet again, everything comes back into play. It's about a new benchmark. We're always looking forward. Not sideways, never back. We started from scratch, and we gave everything we've got to make the newest Dolphin even better. Our goal was simple. To create the next Dolphin that can do more, deliver more and consume less power than ever before. The Sigma represents the future of the Dolphin brand. A fascinating future that shows what's possible. Its design is completely new, but like that of every Dolphin that came before, it's based on years of research and engineering. The all-new Sigma takes its place at the top of the Dolphin line and in the top echelon of its class.
"Maytronics engineers have done it again, designing a new line of Dolphin pool cleaners that do the improbable."
Patented by Maytronics
Tangle-Free Swivel
The underwater robotic cable swivel is one of the greatest engineering accomplishments in the pool cleaner industry. But you don't need to be an engineer to understand the benefits of tangle-free operation. Without a swivel, every cable will eventually become a tangled hassle. This game changing swivel system, developed and patented by Dolphin, provides unlimited 360 degree rotation without wear or degradation. What other robotic pool cleaner company offers a swivel? Only Dolphin Sigma pool cleaners.
Ultra-efficient using 87% less energy
Triple High RPM DC Motors
There was an opportunity to get more from less. To optimize the work input to work output. Famous for a high ratio of torque to inertia, the DC motor can provide up to five times its rated torque without stalling. The Sigma Dolphin pool cleaner utilizes not one, not two, but three onboard DC motors. The result is the most powerful suction on any pool cleaner. With an increase of 500 gallons per hour, Sigma picks up debris that other robots leave behind. 24-volt DC motors require 87% less energy than the AC motors that power old fashioned pool cleaners. Enter the era of gyroscope enabled robotic pool cleaners.
Groundbreaking list of patented features
A Sum Far Greater Than the Parts
Everything we do day in, day out is geared toward maintaining and enhancing your pool ownership experience. From triple DC motors and microprocessors to gyroscopic systems, we're constantly working to get the most out of every electron. But we aren't satisfied with just using less energy. The demands of pool owners everywhere are changing and we're listening. With new gyroscopic control and a level of efficiency never seen before, the new benchmark is set. Triple DC motors and gravity defying suction deliver an exceptional user experience while reducing energy use up to 90%. In a class by itself, the Dolphin Sigma was designed from the ground up to be easier to buy, own and operate.
The largest cartridge ever in a pool robot
Massive Top-Loading Cartridge Filtration
The new Sigma's filtration system is so large, easy and convenient, you'll never consider messy, cumbersome debris bags again. Cartridge filters have been around for years, but pool owners found them small and difficult to clean. Previous generation cartridges made debris removal nearly impossible with small cavities that trapped small debris and fine dirt. Consider this problem solved. With the new Sigma, Dolphin introduces a new massive cartridge with the highest capacity ever recorded on a pool robot. The new Dolphin SnapLoc™ Filters make robot cleaning easier than ever. Each side simply snaps apart for quick and easy cleaning.
Capture more
Next-Gen NanoFiltration
Adding Sigma's top-loading NanoFilter™ cartridges to your pool's cleaning team forever changes what a clean pool is. Rated down to 2 microns, NanoFiltration picks up where other robots leave off, capturing even the smallest particles like pollen and fine algae. Standard filters are included too, so you can swap cartridges in seconds for heavy leaf days.
Scrubbing & navigation
Every square inch.
Attacks tough contaminants
PowerClean Quad Scrubbing Brushes
Virtually any pool cleaner can vacuum loose debris, but it takes a special type of robot to remove contaminants that adhere to the pool surface. Traditional cleaners merely pass over difficult to remove pathogens, leaving them fully intact. The Sigma robot was engineered from the ground up to deep clean.
Engineers gave Sigma quad scrubbing brushes that attack the bacteria, algae and biofilm that is firmly attached to the pool wall. PowerClean™ is especially effective against biofilm, a structured community of microorganisms that increases chlorine demand, destroys water quality, and frustrates pool owners. Guided by SmartNav™ 3.0, Sigma's quad high RPM brush power scrubs every square inch of any pool with remarkable efficiency.
Leaves wheeled cleaners in its wake
HyperGrip Continuous Tracks
Water between the wheels and pool surface make it difficult for the robot to maintain traction. Continual slippage results in lost energy efficiency and reduced performance. The Sigma takes a radical departure from the conventional wheel with continuous rubber tracks. Sigma maintains constant contact even when climbing slippery surfaces. No more slipping. No more wasted energy.
The rubber track also improves directional control and provides greater force than wheels. Tracked robots also glide smoothly over obstacles like drains and are capable of climbing straight up vertical walls. The Sigma's traction is further improved with a high grip, water-optimized tread and geometric shape, which minimizes rolling resistance providing superior weight distribution, traction, and wall climbing.
Programmable frequency & duration
Just Say When
Sigma is equipped with programmable run frequency and cleaning duration so you're always in full control. With programmable modes, you can set Sigma to automatically run when you need it - daily, 2x per week or 3x per week. Sigma comes with a built-in, programmable weekly timer to ensure that even if you are out of town, your pool stays clean and ready to enjoy.
Sigma is engineered to clean quickly and thoroughly. This means you can schedule your robot to run less often. Sigma will complete a cleaning cycle in pools up to 60 feet long in just two hours. The new advanced controls allow you to run Sigma only as needed instead of every day, saving even more energy.
Gyroscope enabled navigation
New SmartNav 3.0
Gone are the days of watching your robot aimlessly wander around your pool, wondering if it will ever pick up the leaves it has skipped day after day. The new Sigma is equipped with SmartNav 3.0 Robotic Scanning to ensure that every inch of your pool surface is reached. SmartNav software delivers highly optimized scanning and coverage for a new level of clean. Sigma calculates the optimal pattern for faster cleaning and improved efficiency. With its remarkable gyroscopic control system, the Sigma knows where it has and hasn't been to avoid overlapping cleaning paths and minimize cleaning time. With the ability to sense ladders and drains, Sigma won't get hung up like ordinary cleaners. Gyroscopic controlled Pool Scanning ensures complete, efficient pool surface coverage.
Why Sigma?
3 Motors Commercial-Grade 3,000 RPM DC
4 Brushes Independent PowerClean Scrubbing
90% Less Energy Than AC Cleaners
Best-in-class warranty & value
Peace of Mind
Adding the commercial grade Sigma to your pool's cleaning team will forever change your pool. The Sigma picks up where other pool robots leave off with ground-breaking new features that make owning a pool as easy and carefree as it should be. Experience peace of mind with the 3-year warranty backed by the world leader in robotic pool cleaners. It's time to try Sigma in your own pool for 30 days. If you're not 100% satisfied, simply return it. Let Sigma challenge everything you know about robotic pool cleaners.
The #1 Rated Pool Robot.
Read hundreds of reviews and testimonials. See why so many pool owners make the switch to the Dolphin Sigma.
★★★★★ Verified Purchase
“Purchased this unit at the beginning of the year for our new pool. Pool was filled before sod was put down. Lots of windy days with fine sand getting blown into the pool. This little guy with the fine filters went to work and on...”— Patrick L., “It’s a beast!”
★★★★★ Verified Purchase
“Have had robotic pool cleaners in the past but were underwhelmed. But, we recently re-ran the math and decided to try again. Soooo well worth it! We've been using 'Bob' for over a month and he's the best! Our pool is ~35+' and...”— Anna, “Thrilled To Have Replaced Our $200/Month Pool Guy With Bob!”
★★★★★ Verified Purchase
“The robot is a solid A, it cleaned my algae-riiden pool, picks up large objects such as acorns with ease, and could not be more simple to use and clean. The remote control from the app is adequate but lags the inputs a little,...”— Patrick, “Easy to use, great little cleaner, cleaned up my algae-riiden pool in no time!”
NEXT STEPS
Try Sigma in Your Pool for 30 Days
Every pool deserves an intelligent robot.
Take Sigma home and try in your own pool for 30 days. If you're not 100% satisfied, simply return it.
