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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 Nautilus CC Plus WiFi or Dolphin Sigma — which wins?
What Sets Them Apart
Side by Side
The features that matter most when comparing the Dolphin Sigma and Dolphin Nautilus CC Plus WiFi.
| Feature | SigmaOur Pick | Nautilus CC Plus WiFi |
|---|---|---|
| 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 | Nautilus CC Plus WiFi | |
|---|---|---|
| Part Number | 99991036-SPLI | 99996406-PCI |
| 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 | 2 |
| Cable Length | 60 ft | 60 ft |
| Anti-Tangle Swivel | Yes | Yes |
| Pool Types | In Ground | In Ground |
| Maximum Pool Size | 50 ft | 40 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 | Yes |
| Warranty | 3 Years | 2.5 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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