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Head-to-Head Comparison
Our pool experts compare features, filtration, specs, and value to help you pick the right robotic pool cleaner.
Dolphin Proteus DX3 or Dolphin Sigma — which wins?
Diving into the Dolphin Sigma vs Dolphin Proteus DX3, our pool experts weigh filtration, cleaning coverage, smart features, and value. For most pools, the Dolphin Sigma is the robot we recommend — and right now you save $500.
What Sets Them Apart
Side by Side
The features that matter most when comparing the Dolphin Sigma and Dolphin Proteus DX3.
| Feature | SigmaOur Pick | Proteus DX3 |
|---|---|---|
| Standard Filter | ||
| NanoFilters™ | ||
| Wall Climbing | ||
| Waterline Cleaning | ||
| Programmable Timer | ||
| Gyroscope Navigation | ||
| Dual Stabilizer | ||
| Anti-Tangle Swivel | ||
| 3 Year Warranty |
Explained
Often overlooked, a NanoFilter™ can be the most important part of a pool robot. Without it, microscopic particulate passes right through the standard filters found on most robots. These advanced filters capture more debris, leaving you with a cleaner, healthier pool. Learn more ›
An automatic pool cleaner should be automatic. A programmable weekly timer sets the robot to clean at different intervals — cleaning for you every day of the week without manually turning it on and off.
Essential for waterline cleaning, dual stabilizers let the unit cling to the walls for a more precise, deeper clean at the waterline — with increased agility and an easy pickup handle.
Say goodbye to tangled cords. An anti-tangle swivel lets the robot move 360° around your pool without the cord getting tangled, so you can sit back while it cleans. Learn more ›
A robot is only as good as its warranty. Buying through an Authorized Maytronics Dealer like Poolbots gets you the full warranty — plus a 30-day in-pool trial with no restocking fees. Learn more ›
Watch
The Details
| Sigma | Proteus DX3 | |
|---|---|---|
| Part Number | 99991036-SPLI | 99996114-LES |
| Waterline Cleaning | Yes | No |
| Multi-Media® | No | No |
| Filters Included | 2 | 1 |
| Filter Cleaning | Ultra-fine NanoFilters and Standard Filter Cartridge sets | Top Access |
| Cleaning Coverage | Floor, Walls, Waterline | Floor and Walls |
| Cleaning Cycle | 2.5 hours | 2 hours |
| Number of Brushes | 4 | 1 |
| Cable Length | 60 ft | 50 ft |
| Anti-Tangle Swivel | Yes | No |
| Pool Types | In Ground | In Ground |
| Maximum Pool Size | 50 ft | 33 ft |
| Pool Shape | Rectangle, Oval, or Freeform | Rectangle, Oval, or Freeform |
| Obstacles | Steps, Ladder, Drain Cover, Ledges, Pop-Ups | Steps, Ladder, Drain Cover, Ledges, Pop-Ups |
| Surface | Concrete, Plaster, Gunite, Pebble, Tile, Vinyl Liner, Fiberglass | Gunite, Fiberglass, Vinyl, Liner |
| Media-Alert® | No | No |
| Automated Weekly Timer | Yes | Yes |
| Remote Operation | Yes - Through App | No |
| Restocking Fee | No | No |
| Warranty | 3 Years | 2 Years |
Go Deeper
Our in-depth reviews are written by pool experts to help you make an informed decision.
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Every pool deserves an intelligent robot. If you don't love it, simply return it — we never charge a restocking fee. Free shipping on every order.
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