Dolphin Sigma versus Dolphin Premier®

Compare the Dolphin Sigma to the Dolphin Premier

Both the Dolphin Premier and Dolphin Sigma are designed to clean your pool's floor, walls, and waterline. Breaking down their filters, the Dolphin Premier® includes 3 filter options (with a 4th optional). The Dolphin Sigma includes 2 filter options: Standard and Ultra-Fine Filters, but won't include the Oversized Leaf Bag. The Dolphin Premier and Dolphin Sigma have the same 3-year manufacturer's warranty.

Cleaning Performance

In terms of cleaning performance, the Dolphin Premier® is capable of cleaning pool floors, walls, and waterline (also called the scum line), which is the most vulnerable part of the pool to dirt, grime, and algae buildup. This is especially important for robotic pool cleaners because if the bot doesn't clean the scum line, you'll still need to manually brush the pool afterwards. The Dolphin Sigma also covers your entire pool, including the pool floor, walls, and waterline.

Filter Options

The Dolphin Premier® includes Multi-Media®, which offers four different filter media options. This gives you the ability to customize your cleaning based on your pool's needs. If you need to pick up leaves, you can use the oversized leaf bag or disposable leaf bag. If you need to clean up regular debris, you can use the fine filter cartridge. Finally, if you need to pick up fine dust and other micro particles, you can use the ultra-fine cartridge. The Dolphin Sigma includes the Ultra-Fine and Standard Cartridge Filter, but won't be able to use or include a leaf bag.

The Dolphin Premier includes:

• Oversized Leaf Bag
• Standard Cartridge Filter Set
• Ultra-Fine Cartridge Filter Set
• Optional Disposable Debris Bag (sold separately)

The Dolphin Sigma includes:

• Standard Cartridge Filter
• Ultra-Fine Cartridge Filter

Ease of Use

Both robots have a similar setup process and weigh about the same. To set up either one, simply plug the power supply into an outdoor outlet, plug the unit into the power supply, drop the unit into the water, and press start. Both robots have a weekly timer with options for daily, every other day, and every three-day cycles.

Full Filter Indicator

A Full Filter Indicator will let you know when the filter bag is full and needs to be cleaned, as well as when it is partially blocked and needs to be cleared out. This full filter indicator is on the Dolphin Premier and Dolphin Sigma to help you know when it is time to clean.

Anti-Tangle Swivel

Both models come with an anti-tangle swivel to minimize cord tangling. This helps both robots clean with power and precision in your swimming pool. The Patented Tangle Free Swivel from Maytronics allows the robot to rotate 360 degrees without your cord getting tangled.

Warranty

The Dolphin Premier and Dolphin Sigma have the same 3-year manufacturer's warranty.

Which is the better pool robot?

Overall, the Dolphin Premier offers more customizable filter options, an Oversized Leaf Bag, and the same 3-year warranty when compared to the Dolphin Sigma.