Dolphin Sigma Robotic Pool Cleaner Review

The Dolphin Sigma is the latest of Maytronic’s line of robotic pool cleaners to hit the market. Although it may be too early to tell, the Dolphin Sigma may be the best robotic pool cleaner out there, thanks to its numerous additional features not available in many of its predecessors. Let’s take a closer look at what the Dolphin Sigma is packing.

Dolphin Sigma Robotic Pool Cleaner Review

SmartNav 3.0 Scanning and Mapping

Most Dolphin brand pool cleaners rely on the SmartNav navigations system to scan and map the layout of a pool. The Sigma is no different, but it uses the latest and most prominent version – SmartNav 3.0 – to create an almost-perfect digital layout of your swimming pool, which the robot uses for the most efficient cleaning pattern.

Combined with a built-in gyroscopic navigation system, the robot gives greater awareness of its surroundings and allows the robot to move more freely to better tilt, turn, and crawl along all surfaces of your pool.


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Triple 24V DC Motors

The Sigma is the first robotic pool cleaner to use not one, not two, but three 24V DC motors. By packing such power underneath its stylish hood, the Sigma is arguably the most powerful pool cleaner on the market.

Dolphin Sigma Robotic Pool Cleaner

The triple-motor setup allows the Sigma to move quicker and proceed over several obstacles without getting stuck in its tracks. The motors working in tandem increase their suction power, thereby improving cleaning performance far beyond what you can expect from other Dolphin models.

HyperGrip Rubber Tracks

If you’re wondering where the Sigma wheels are, you can forget about it. The Sigma, like so many other premium robotic pool cleaners, relies on tracks to travel on slippery pool surfaces.

But the HyperGrip Rubber Tracks are unique – the tracks operate independently of one another. The Sigma can turn around on the spot without backing up by directing each track to turn in opposite directions simultaneously.

Dual Active Brushes

Although the Sigma notes to have “dual” brushes, it has four – two in the front and two in the rear. Each brush, like the rubber tracks, works independently of each other for better cleaning performance in every direction.

Dolphin Sigma Review

The high-RPM rate of the brushes pulls in dirt and algae from the walls and base of your pools, leaving them squeaky clean after 2-1/2 hours of cleaning.

Dual Oversized Filter Cartridges

The Sigma seems to have everything in multiples, including oversized filters. On top of the Sigma are two large filter cartridges that separate large from small debris. Their extra-large size allows the robot to carry more algae, dead leaves, and grains of sand than any other Dolphin-made robot.

Since the cartridges are on top of the robot rather than on its belly, accessing them to remove pool gunk is easier than ever.

Programmable Timer

If you’re not at home, you won’t need to worry about coming to an algae-filled pool. The Sigma has a programmable timer that lets you set up your cleaning schedules. The schedule is limited to daily, biweekly, and triweekly, but it’s better than nothing!

Dolphin Sigma

360° Swivel Cord

Maytronics has perfected their robots’ maneuverability by including a 360° swivel cord. As you can imagine, the cord can twist in a full circle without fraying the inner wires, giving the robot the ability you twist and turn as it likes.

Now, that’s not to say the technology doesn’t have its faults – the cord isn’t 100% foolproof, and the Sigma can end up turning around in one spot endlessly. However, these occurrences are rarer than a solar eclipse.

Bluetooth Connectivity

Most robotic pool cleaners come with a basic remote control but not Sigma. Instead, you have two options; the first is using the downloadable smartphone app, MyDolphin.

The other way of managing cleaning schedules and manually controlling the Sigma is connecting it via Bluetooth to your gadget. Bluetooth connectivity is excellent for those pool areas not covered by Wi-Fi.

Dolphin Sigma Robotic Pool Cleaner

Spotty Stair Cleaning

The biggest issue most pool owners have is their robot’s inability to clean stairs. It is also true with the Dolphin Sigma. It can clean other areas of a 50-foot pool without a hitch, but as soon as it sees pool steps, its navigation system goes haywire.

Lack of Caddy

Not having a caddy may not be the end of the world, especially for those who plan on leaving the Sigma in the pool 24/7 for scheduled cleaning purposes, but it’s worth mentioning.

The caddy is used to simplify the task of transporting and storing the unit when not in use. There is a silver lining: Sigma is compatible with most of Maytronics’ caddies (sold separately).

Related Dolphin Robotic Pool Cleaner Articles
Single Reviews
Dolphin Nautilus CC Plus Robotic Pool Cleaner
Dolphin Premier Robotic Pool Cleaner
Dolphin Oasis Z5i Robotic Pool Cleaner
Dolphin Proteus DX3 Robotic Pool Cleaner
Dolphin Sigma Robotic Pool Cleaner

Comparison Articles
Dolphin vs. Polaris
Dolphin Premier vs Oasis Z5i
Dolphin Sigma vs. Dolphin Premier

Dolphin Sigma Video


Verdict

From our review, it’s clear that we are head-over-heels in love with Dolphin Sigma. What’s not to love? The navigation system is smarter than ever, and it creates an almost picture-perfect digital map of your pool, so it never misses a spot or makes repeated passes over the spot in the same cleaning cycle.

The Sigma, however, doesn’t perform all that well on stairs, but no robot is perfect. So if you have a 50-foot pool that needs regular cleaning, think of the Dolphin Sigma.

Dolphin Sigma Robotic Pool Cleaner Review

Our Recommended Robotic Pool Cleaners

"Budget" Pick
Best of the Best!
Also Great
Dolphin Nautilus CC Plus Robotic Pool [Vacuum] Cleaner - Ideal for In Ground Swimming...
Dolphin Nautilus CC Supreme WiFi Operated Robotic Pool [Vacuum] Cleaner - Ideal for...
Dolphin Premier Robotic Pool Cleaner with Powerful Dual Scrubbing Brushes and...
Dolphin Nautilus CC Plus
Dolphin Nautilus CC Supreme
Dolphin Premier
• In-ground Swimming Pools
• In-ground Swimming Pools
• In-ground Swimming Pools
• Pool Size: Up to 50 ft.
• Pool Size: Up to 50 ft.
• Pool Size: Up to 50 ft.
• 2h Cleaning Time
• 1,5 | 2,5 | 3,5 hrs Cleaning Time
• 3 hr Cleaning Time
The Nautilus CC Plus is perfect for all pool types. From gunite to tile, and everything in between; you name it and Dolphin will clean it.
Equipped with a center scrubbing brush, this cleaner pushes the limits for wall and waterline cleaning.
Smart Nav software delivers highly optimized scanning and coverage for a new level of clean. Advanced algorithms clean 100% of the pool floor, wall & tile/waterline and pool floor.
"Budget" Pick
Dolphin Nautilus CC Plus Robotic Pool [Vacuum] Cleaner - Ideal for In Ground Swimming...
Dolphin Nautilus CC Plus
• In-ground Swimming Pools
• Pool Size: Up to 50 ft.
• 2h Cleaning Time
The Nautilus CC Plus is perfect for all pool types. From gunite to tile, and everything in between; you name it and Dolphin will clean it.
Best of the Best!
Dolphin Nautilus CC Supreme WiFi Operated Robotic Pool [Vacuum] Cleaner - Ideal for...
Dolphin Nautilus CC Supreme
• In-ground Swimming Pools
• Pool Size: Up to 50 ft.
• 1,5 | 2,5 | 3,5 hrs Cleaning Time
Equipped with a center scrubbing brush, this cleaner pushes the limits for wall and waterline cleaning.
Also Great
Dolphin Premier Robotic Pool Cleaner with Powerful Dual Scrubbing Brushes and...
Dolphin Premier
• In-ground Swimming Pools
• Pool Size: Up to 50 ft.
• 3 hr Cleaning Time
Smart Nav software delivers highly optimized scanning and coverage for a new level of clean. Advanced algorithms clean 100% of the pool floor, wall & tile/waterline and pool floor.

Last update on 2022-08-17 / Affiliate links / Images from Amazon Product Advertising API



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