{"id":1932,"date":"2019-03-16T17:12:51","date_gmt":"2019-03-16T22:12:51","guid":{"rendered":"https:\/\/roboticpoolcleanerscompared.com\/?p=1932"},"modified":"2019-12-05T05:38:37","modified_gmt":"2019-12-05T11:38:37","slug":"dolphin-sigma-robotic-pool-cleaner-review","status":"publish","type":"post","link":"https:\/\/roboticpoolcleanerscompared.com\/reviews\/dolphin-sigma-robotic-pool-cleaner-review\/","title":{"rendered":"Dolphin Sigma Robotic Pool Cleaner: My In-Depth Review"},"content":{"rendered":"<h3><strong>Price: <img decoding=\"async\" src=\"https:\/\/ir-na.amazon-adsystem.com\/e\/ir?t=roboticpoolcleaners05-20&l=alb&o=1&a=B07CZ1XVZX\" width=\"1px\" height=\"1px\" alt=\"\" style=\"position: fixed !important; bottom: -1px !important; right: -1px !important; border:none !important; margin:0px !important;\" \/>\u00a0<\/strong>on Amazon<\/h3>\n<ul>\n<li>For <strong>in-ground pools<\/strong> with any type of surface.<\/li>\n<li>Smart mapping and gyroscope-enabled navigation.<\/li>\n<li>Three (3) high-performance energy-efficient DC motors.<\/li>\n<li>Independent tracks.<\/li>\n<li>Dual active scrubbing split brushes.<\/li>\n<li>Bluetooth and WiFi control via a smartphone app.<\/li>\n<li>Programmable weekly timer.<\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.amazon.com\/gp\/product\/B07CZ1XVZX\/?tag=roboticpoolcleaners05-20\" rel=\"nofollow\"><img loading=\"lazy\" decoding=\"async\" class=\"crazy_lazy alignnone wp-image-972 size-full\" src=\"https:\/\/roboticpoolcleanerscompared.com\/wp-content\/uploads\/2014\/08\/see-it-on-Amazon-e1464201433963.png\" width=\"230px\" alt=\"see-it-on-amazon\" width=\"275\" height=\"74\" data-src=\"https:\/\/roboticpoolcleanerscompared.com\/wp-content\/uploads\/2014\/08\/see-it-on-Amazon-e1464201433963.png\" \/><\/a><\/p>\n<hr \/>\n<p>The Dolphin Sigma is the latest addition to the Dolphin lineup of robotic pool cleaners. And it may very well be the best Dolphin pool cleaner ever manufactured by <strong>Maytronics<\/strong>.<\/p>\n<p>The Sigma is designed to clean<strong>\u00a0in-ground pools of all shapes and surfaces.<\/strong> It comes with smarter navigation, more cleaning power and more features than pretty much all other robotic pool cleaners in the market.\u00a0 \u00a0The closest models I can think of to compare this with include the <a href=\"https:\/\/roboticpoolcleanerscompared.com\/robotic-pool-cleaner-reviews\/polaris-f9450-sport-4wd-review\/\"><strong>Polaris 9550<\/strong><\/a> and the <a href=\"https:\/\/roboticpoolcleanerscompared.com\/robotic-pool-cleaner-reviews\/dolphin-premiere\/\"><strong>Dolphin Premier<\/strong><\/a>.<\/p>\n<p>The Sigma one of the few robotic pool cleaners with <strong>Bluetooth connectivity, <\/strong>too. This\u00a0lets you to control the robot from your smartphone no matter how far back from your home your pool lies.<\/p>\n<p>Of course, this is not the least expensive cleaner. Going for well <strong>over $1,000<\/strong>, you\u2019ll have to dig deep for the Dolphin Sigma &#8211; but honestly, I think it\u2019s worth it.<\/p>\n<p>That said, it&#8217;s not perfect &#8211; the Sigma isn&#8217;t the best stair cleaner, for example.<\/p>\n<p>Keep reading for my in-depth review of this excellent new robotic pool cleaner from the world&#8217;s leading manufacturer of robotic pool cleaners.<\/p>\n<p>If you are looking for something less expensive for your in-ground pool, then read about my other favorites in my<a href=\"https:\/\/roboticpoolcleanerscompared.com\/best-robotic-pool-cleaners-for-inground-pools\/\">\u00a0inground pool cleaner buying guide<\/a>.<\/p>\n<p>If you need a pool cleaner for an <strong>above-ground pool<\/strong>, the Sigma is not your best choice (it&#8217;s kinda overkill).\u00a0 Read my <a href=\"https:\/\/roboticpoolcleanerscompared.com\/robotic-pool-cleaners-for-above-ground-pools\/best-robotic-pool-cleaners-for-above-ground-pools-2017\/\">above-ground cleaner buying guide<\/a> to find less expensive options.<\/p>\n<hr \/>\n<h2>Dolphin Sigma Video Introduction<\/h2>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/kbx7LeKTqio?rel=0&amp;showinfo=0\" width=\"280\" height=\"163\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p><a href=\"https:\/\/www.amazon.com\/gp\/product\/B07CZ1XVZX\/?tag=roboticpoolcleaners05-20\" rel=\"nofollow\"><img decoding=\"async\" class=\"crazy_lazy alignnone wp-image-972 size-full\" src=\"https:\/\/roboticpoolcleanerscompared.com\/wp-content\/uploads\/2014\/08\/see-it-on-Amazon-e1464201433963.png\" alt=\"see-it-on-amazon\" width=\"230px\" height=\"74\" data-src=\"https:\/\/roboticpoolcleanerscompared.com\/wp-content\/uploads\/2014\/08\/see-it-on-Amazon-e1464201433963.png\" \/><\/a><\/p>\n<hr \/>\n<h2><strong><b>Cleaning Ability<\/b><\/strong><\/h2>\n<p>Dolphin Sigma\u2019s cleaning ability matches its<strong><b>\u00a0high price tag<\/b><\/strong>. It cleans better, faster and more efficiently than most other robotic pool cleaners thanks to a number of recent innovations.<\/p>\n<p>One of the biggest changes is the use of a triple motor system.\u00a0 That&#8217;s right &#8211; three drive motors.<\/p>\n<p>The motors propel the robot around the pool floor and walls effortlessly\u00a0while powering a high-performance suction system that picks up everything from tiny algae to large chunks of debris.<\/p>\n<p>The<strong><b>\u00a0independent strong-grip tracks<\/b><\/strong>\u00a0and the integrated <strong>gyroscope<\/strong> technology help the Dolphin Sigma robot navigate your pool extremely efficiently. It can <strong>turn on the<\/strong> <strong><b>spot, crawl walls and move over slippery surfaces <\/b><\/strong>without a problem.<\/p>\n<p><strong>Dual split brushes<\/strong> agitate and remove stubborn algae and dirt from your pool&#8217;s surfaces while <strong>dual filters<\/strong> ensure that all debris is picked up, both coarse and fine. The top-access cartridges also hold a lot of debris before you need to empty them.<\/p>\n<p>Whether you are cleaning your pool for the first time in months or just doing routine cleaning, the Dolphin Sigma is up to the job.<\/p>\n<p>The Sigma&#8217;s\u00a0<strong><b>cleaning cycle<\/b><\/strong>\u00a0is a bit longer than most at around 2.5 hours, but this allows it to clean more thoroughly. You&#8217;ll probably only need to clean your pool 2-3 times a week.<\/p>\n<hr \/>\n<h2><strong><b>Best Features<\/b><\/strong><\/h2>\n<h3><strong><b>1. SmartNav\u2122 3.0 Scanning and Mapping With Gyroscopic Navigation<\/b><\/strong><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"240\" class=\"alignnone size-full wp-image-1937\" src=\"https:\/\/roboticpoolcleanerscompared.com\/wp-content\/uploads\/2018\/08\/61j2o7nslxL._SL1500_.jpg\" alt=\"Dolphin Sigma Pool Cleaner\" \/><\/p>\n<p>Most Dolphin pool cleaners use the SmartNav smart scanning and mapping system.<\/p>\n<p>For the Sigma, Dolphin updated to its latest version which provides even <strong>more precise pool scanning for better cleaning.<\/strong><\/p>\n<p>SmartNav 3.0 maps and remembers your pool&#8217;s shape, size and contours and uses this data to<strong><b>\u00a0calculate the best cleaning pattern<\/b><\/strong>.<\/p>\n<p>So instead of wandering randomly like many\u00a0<strong>low-cost pool cleaners<\/strong>, it follows a precise path that covers every square inch of your pool while using as little energy as possible.<\/p>\n<p><strong><b>SmartNav 3.0 <\/b><\/strong>also tells Sigma where it has already cleaned, ensuring it doesn\u2019t waste time and power going over the same areas more than once.<\/p>\n<p>The Dolphin Sigma also comes with a <strong><b>gyroscopic navigation system <\/b><\/strong>that gives it better <strong><b>location awareness. <\/b><\/strong><b><\/b>It is the first robotic pool cleaner to be equipped with a gyroscope, in fact.<\/p>\n<p>The Sigma&#8217;s\u00a0<strong><b>gyroscope sensors<\/b><\/strong>\u00a0\u2013 the same used in planes, some drones and the Mars rover \u2013 also improve the robot\u2019s ability to turn and tilt while moving vertically on the wall and crawling along the floor.<\/p>\n<h3><strong><b>2. Triple Motors<\/b><\/strong><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"240\" class=\"alignnone size-full wp-image-1938\" src=\"https:\/\/roboticpoolcleanerscompared.com\/wp-content\/uploads\/2018\/08\/61TtWi20G3L._SL1500_.jpg\" alt=\"Dolphin Sigma Pool Cleaner\" \/><\/p>\n<p>Another first in the <a href=\"https:\/\/maytronicsus.com\">Dolphin Sigma<\/a> is the use of <strong><b>three motors. <\/b><\/strong><\/p>\n<p>Most robotic pool cleaners have one motor, and a few premium ones spot two. The Sigma uses\u00a0three<strong><b> high RPM commercial-grade DC motors.<\/b><\/strong><\/p>\n<p>This makes the Sigma one of the most powerful robotic pool cleaners sold today.<\/p>\n<p>It moves easily and quickly in the pool, rarely if ever gets stuck and has <strong><b>impressive suction power.<\/b><\/strong><\/p>\n<p>But just because the Sigma&#8217;s 3 motors are powerful doesn\u2019t mean they are power-hungry.<\/p>\n<p>These <strong><b>24V DC motors use 87% less energy<\/b><\/strong>\u00a0<strong>than traditional AC motors<\/strong>.<\/p>\n<p>Overall, the Sigma robot cleaner uses up to 90% less power compared to suction\/pressure side pool cleaners<strong><b>. <\/b><\/strong><\/p>\n<h3><strong><b>3. Independent Rubber Tracks<\/b><\/strong><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"240\" class=\"alignnone size-full wp-image-1941\" src=\"https:\/\/roboticpoolcleanerscompared.com\/wp-content\/uploads\/2018\/08\/515ZNsXKeDL._SL1500_.jpg\" alt=\"Dolphin Sigma Pool Cleaner\" \/><\/p>\n<p>Similar to other premium robot pool cleaners, the <strong>Dolphin Sigma uses tracks<\/strong>\u00a0rather than wheels. Tracks provide better traction and can tackle walls and obstacles better.<\/p>\n<p>But Sigma\u2019s<strong><b>\u00a0HyperGripTM tracks<\/b><\/strong>\u00a0are unique, as they operate independently of each other.<\/p>\n<p>This means that one track can turn in one direction while the other turns in the opposite direction. This allows the robot to turn completely around on the spot.<\/p>\n<h3><strong><b>4. Dual Active Scrubbing Brushes<\/b><\/strong><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"240\" class=\"alignnone size-full wp-image-1939\" src=\"https:\/\/roboticpoolcleanerscompared.com\/wp-content\/uploads\/2018\/08\/71066xZdRnL._SL1500_.jpg\" alt=\"Dolphin Sigma Pool Cleaner\" \/><\/p>\n<p>The Dolphin Sigma uses <strong><b>dual high RPM brushes to gouge stubborn dirt<\/b><\/strong>\u00a0and algae off your pool&#8217;s surfaces.<\/p>\n<p>The brushes are split, meaning there are 4 brushes in total: two at the front and two at the rear.<\/p>\n<h3><strong><b>5. Dual Filtration <\/b><\/strong><\/h3>\n<p>The Sigma comes with <strong><b>two types of filters<\/b><\/strong>.<\/p>\n<p>One is for <strong>large debris<\/strong> like leaves, twigs and small rocks, and the other is for fine and<strong><b>\u00a0ultra-fine stuff like algae, sand and dust.<\/b><\/strong><\/p>\n<h3><strong><b>6. Oversized Top-Load Filter Cartridges<\/b><\/strong><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"240\" class=\"alignnone size-full wp-image-1940\" src=\"https:\/\/roboticpoolcleanerscompared.com\/wp-content\/uploads\/2018\/08\/71QXspT50IL._SL1500_.jpg\" alt=\"Dolphin Sigma Pool Cleaner\" \/><\/p>\n<p>Dirt and debris is collected into <strong><b>two extra-large cartridges<\/b><\/strong>.<\/p>\n<p>These are <strong>top-load<\/strong> style cartridges, so removing them does not require lifting and turning this rather heavy unit over.<\/p>\n<h3><strong><b>7. Programmable Weekly Timer &amp; Bluetooth Control <\/b><\/strong><\/h3>\n<p>You don\u2019t have to be home to clean the pool with the Dolphin Sigma. Just select an auto-cleaning schedule from the three options available \u2013 <strong><b>daily, 2X a week, 3X a week<\/b><\/strong>\u00a0\u2013 and let the robot do its thing.<\/p>\n<p>Just make sure to leave it in the water for it to start cleaning automatically.<\/p>\n<p>The Dolphin Sigma doesn\u2019t come with a remote control &#8211; but you don\u2019t need one. You can use your smartphone courtesy of the\u00a0MyDolphin app which you need to download and install.<\/p>\n<p>The Sigma pool robot also has Bluetooth connectivity, which is really important for homes that have pools set back from their back door where WiFi might be spotty. Once you connect your phone, you use it as a remote control. Note: you need to download the MyDolphin app to use Bluetooth control.<\/p>\n<hr \/>\n<div class=\"one_half\">\n<h2><strong><b>Pros <\/b><\/strong><\/h2>\n<ul>\n<li>Triple motors = one of the most powerful and capable robotic pool cleaners around.<\/li>\n<li>Smart mapping \/ navigation reduces cycle times and saves energy.<\/li>\n<li>Easy to use and clean top-access cartridges<\/li>\n<li>Bluetooth connectivity (important for pools set away from the home).<\/li>\n<li>Oversized cartridges that don\u2019t need to be emptied midway through the cleaning.<\/li>\n<li>Dual filters for improved cleaning.<\/li>\n<li>No-frustration 360 degree swivel cable.<\/li>\n<li>Weekly timer with lots of flexibility.<\/li>\n<\/ul>\n<p><\/div><div class=\"one_half last\"><\/p>\n<h2><strong><b>Cons <\/b><\/strong><\/h2>\n<ul>\n<li><strong><b>Pricey.\u00a0<\/b><\/strong>But considering all the features you get, I think it\u2019s worth it.<\/li>\n<li>Has a bit of trouble cleaning steps.<\/li>\n<li>Not a lightweight.<\/li>\n<\/ul>\n<p><\/div><div class=\"clearboth\"><\/div><\/p>\n<hr \/>\n<h2><strong><b>Specifications<\/b><\/strong><\/h2>\n<ul>\n<li><strong>Cleaning Cycle: <\/strong>2.5 hr<\/li>\n<li><strong><b>Dry weight: <\/b><\/strong>22 lbs<\/li>\n<li><strong><b>Dimensions:<\/b><\/strong>\u00a023.4 x 19.7 x 14.3 inches<\/li>\n<li><strong>Cable Length:<\/strong> 60 feet<\/li>\n<li><strong><b>Suction rate:<\/b><\/strong>\u00a075 gallons per minute<\/li>\n<li><strong>Plug and Play installation<\/strong><\/li>\n<\/ul>\n<hr \/>\n<h2><strong><b>Conclusion <\/b><\/strong><\/h2>\n<p>If you are looking for a capable robotic pool cleaner for your in-ground pool, the Dolphin Sigma is one of my top recommendations. It has pretty much every feature I like to see &#8211; top loading dual filters, multiple motors, tangle free cable, great cleaning, stair-cleaning and flexible programmability.<\/p>\n<p>The new Dolphin Sigma will set you back more than most pool cleaners, but it&#8217;s probably the best premium cleaner sold on the market today. That, or the <a href=\"https:\/\/roboticpoolcleanerscompared.com\/robotic-pool-cleaner-reviews\/dolphin-premiere\/\">Dolphin Premier<\/a>.<\/p>\n<p><a href=\"https:\/\/www.amazon.com\/gp\/product\/B07CZ1XVZX\/?tag=roboticpoolcleaners05-20\" rel=\"nofollow\"><img decoding=\"async\" class=\"crazy_lazy alignnone wp-image-972 size-full\" src=\"https:\/\/roboticpoolcleanerscompared.com\/wp-content\/uploads\/2014\/08\/see-it-on-Amazon-e1464201433963.png\" alt=\"see-it-on-amazon\" width=\"230px\" height=\"74\" data-src=\"https:\/\/roboticpoolcleanerscompared.com\/wp-content\/uploads\/2014\/08\/see-it-on-Amazon-e1464201433963.png\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Price: \u00a0on Amazon For in-ground pools with any type of surface. Smart mapping and gyroscope-enabled navigation. Three (3) high-performance energy-efficient DC motors. Independent tracks. Dual active scrubbing split brushes. Bluetooth and WiFi control via a smartphone app. Programmable weekly timer. The Dolphin Sigma is the latest addition to the Dolphin lineup of robotic pool cleaners. [&#038;hellip<\/p>\n","protected":false},"author":1,"featured_media":1936,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16,3],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Dolphin Sigma Robotic Pool Cleaner: My In-Depth Review<\/title>\n<meta name=\"description\" content=\"The new Dolphin Sigma robot pool cleaner is one of the best cleaners for inground pools sold today. But it&#039;s not perfect - and it&#039;s certainly not cheap. 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