DOLPHIN Sigma vs Premier, Which is Better?

The Dolphin Sigma and Dolphin Premier are top-notch in-ground robotic pool cleaners produced by Dolphin, which is arguably one of the most recognizable robotic pool cleaner brands on the market today.

The Premier and Sigma models share several similarities, such as a warranty period of 3 years, a suction rate of 4500 gph, a cable length of 60 ft, and both are suitable for pool sizes up to 50 ft. Both models has a cord with anti tangling swivel and can clean rectangular, round, free shape, and kidney-shaped pools, which provides good flexibility for various pool owners.
Both models clean the floor, walls, and waterline and have two combined-type brushes.

Dolphin Sigma

Dolphin Premier

DOLPHIN Sigma robotic pool cleaner DOLPHIN Premier robotic pool cleaner

DOLPHIN Sigma, equipped with a fine filter kit and an ultra-fine filter kit, offers top access to the filter. The filters are accessed from the top, which might be easier for some users. However, it lacks a full filter indicator. The most significant difference is that the Dolphin Sigma features WiFi connectivity. This allows users to use the Smartphone App for scheduling cleaning routines and manually directing the robot for targeted spot cleaning.

On the other hand, the Dolphin Premier has a full filter indicator and multi-layer filtration system with a fine filter kit included. The Premier is lighter than the Sigma and the filter can be accessed from the bottom. The Premier excels in effectively removing algae from the pool with its advance filtration system.
Filter comparison of DOLPHIN Sigma and DOLPHIN Premier

Differences

Here are the key differences between these model:

  • The Dolphin Sigma has Wifi so that you can use Smartphone App for setting the cleaning schedule and manually steering the robot for spot cleaning. The Dolphin Premier does not have such control, you can buy the optional remote control if you need manual steering.
  • The Dolphin Sigma comes with an onboard gyroscope sensor for better navigation and performance.
  • The Sigma has a 2.5 hours cleaning cycle versus Premier’s 3-hours cleaning cycle.
  • The Premier is lighter than the Sigma, with a weight of 20.28 lb compared to Sigma’s 24.6 lb.
  • The Premier has a full filter indicator, which is not available in the Sigma.
  • The Sigma uses a fine filter kit with an additional ultra-fine filter kit, while the Premier employs a multi-layer filter with an additional fine filter kit. The Sigma’s filters are top accessed, while the Premier’s filters are accessed from the bottom.
  • The Sigma includes an automation mode, which the Premier lacks.

For those that are looking for a simpler device and aren’t so concerned with the Smartphone App, the Dolphin Premier may be the way to go. If you want a robot with more efficient navigation, more detailed cycle settings, and easier control with Smartphone App, then we think the Dolphin Sigma is a better alternative.

DOLPHIN Sigma vs DOLPHIN Premier Specs Table

Brand Dolphin Dolphin
Model Sigma Premier
Type Robotic Pool Cleaner Robotic Pool Cleaner
Suitable Pool Types In Ground In Ground
Power Type Corded Corded
Control Method On off and Weekly Scheduler, Smartphone App as Remote Control On off and Weekly Scheduler
Cord Length
60 ft.
60 ft.
Battery Capacity N/A N/A
Charging Time N/A N/A
Cleaning Cycle
2.5 hours
3 hours
Waterline Cleaning
Wall Climb
Navigation CleverClean CleverClean
Sensors Gyroscope
Filter Top-Load Fine and Ultra Fine filters Multi-Layer Filter, micro-cartridges, standard cartridges and oversized leaf/debris bag
Pool Surfaces/Type All pool surface types All pool surface types
Smart Phone Connected (WiFi)
Schedule Timer Weekly Scheduler, Cycle Selector, Remote Steering with smartphone app, Spot Cleaning Weekly Scheduler, Remote Control (optional)
Suction Rate
4500 GPH
4500 GPH
Pool Size Ideal for up to 50 feet Ideal for up to 50 feet
What’s in the package
  • DOLPHIN Sigma Robotic Pool Cleaner
  • Power Supply Unit
  • User Manual
  • Quick Start Guide
  • Registration Card
  • DOLPHIN Premier Robotic Pool Cleaner
  • Power Supply Unit
  • User Manual
  • Quick Start Guide
  • Registration Card
Weight 24.6 lbs. 22 lbs.
Warranty 36-months limited warranty 36-months limited warranty
Manufacturer Website Link Link
See Price at Amazon See Price at Amazon

Side by side photos of DOLPHIN Sigma and DOLPHIN Premier pool cleaners.

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