Head-to-Head Comparison
Dolphin Nautilus Pool Up vs Dolphin W20
Our pool experts compare features, filtration, specs, and value to help you pick the right robotic pool cleaner.
Dolphin W20 or Dolphin Nautilus Pool Up — which wins?
Our Recommendations
Neither the Dolphin Nautilus Pool Up nor the Dolphin W20 is one of the cleaners our pool experts promote. Consider a proven ProLine, Max-Series, or Clear model instead — each is backed by its full manufacturer warranty and our 30-day in-pool trial.
Dolphin Quantum
Open Box $1529Refurbished $1419
- myDolphin Plus App with Weekly Timer
- XXL MaxBin™ with NanoFilters
- 2 Year Warranty
- Built for Inground & Above Ground Pools up to 50ft
Dolphin Cayman
Open Box $1059Refurbished $999
- Free NanoFilter Panels with Purchase
- Active Brush - Scrubs 2X Faster
- 2 Year Warranty
- Built for Above Ground and Inground Pools Up to 33ft
More ways to save on the Quantum
Certified & warranty-backedMore ways to save on the Cayman
Certified & warranty-backedMore ways to save on the Escape
Certified & warranty-backedSide by Side
Feature Comparison
The features that matter most when comparing the Dolphin Nautilus Pool Up and Dolphin W20.
| Feature | Nautilus Pool Up | W20 |
|---|---|---|
| Standard Filter | ||
| NanoFilters™ | ||
| Multi-Media™ | ||
| Oversized Leaf Bag | ||
| Wall Climbing | ||
| Waterline Cleaning | ||
| Hands-Off Weekly Timer | ||
| Hands-Off Daily Cleaning | ✓ No manual recharge | ✓ No manual recharge |
| Smartphone App Control | ||
| Full Filter Indicator | ||
| Gyroscope Navigation | ||
| Dual Stabilizer | ||
| Anti-Tangle Swivel | ||
| 3-Year Warranty |
Explained
Compare Features in Detail
Dual Stabilizer
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.
Anti-Tangle Cable Swivel
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 ›
Warranty Coverage
A robot is only as good as its warranty. The Dolphin Nautilus Pool Up is backed by a 1-year warranty, while the Dolphin W20 carries a 3-year warranty. Buying through an Authorized Dealer like Poolbots gets you the full manufacturer warranty — never pro-rated or limited by cleaning cycles — plus a 30-day in-pool trial with no restocking fees. Learn more ›
The Details
Specifications
| Nautilus Pool Up | W20 | |
|---|---|---|
| Part Number | 99996003-US | 99996904-US |
| Waterline Cleaning | No | No |
| Multi-Media® | No | No |
| Filters Included | 1 | 1 |
| Filter Cleaning | Filter Bag | Bottom Access |
| Cleaning Coverage | Floor, Walls | Floor |
| Cleaning Cycle | 2 hours | 3 hours |
| Number of Brushes | 2 | 2 |
| Cable Length | 40 ft | 80 ft |
| Anti-Tangle Swivel | No | Yes |
| Pool Types | In Ground & Above Ground | In Ground |
| Maximum Pool Size | 33 ft | 68 ft |
| Pool Shape | Rectangle, Oval, or Freeform | Rectangular, Free Shape, Hopper, Kidney, Zero (beach) entry |
| 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 |
| Hands-Off Weekly Timer | No | No |
| Daily Recharging Required | No | No |
| Smartphone App | No | No |
| Remote Operation | No | Yes |
| Restocking Fee | No | No |
| Warranty | 1 Years | 3 Years |
Go Deeper
Read Our Expert Reviews
Our in-depth reviews are written by pool experts to help you make an informed decision.
Dolphin Nautilus Pool Up
Read Dolphin Nautilus Pool Up ReviewDolphin W20
Read Dolphin W20 ReviewKeep Comparing
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What’s Next?
Still narrowing it down? These expert guides and tools make it easy to find the right pool robot for your pool — most ship free, same day.

Pool Robot Buying Guide
Everything to know before you buy your first robot.
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Robot Selector
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Videos
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Pool Volume Calculator
Calculate your exact pool volume to find the right robot.
Read more →Try It in Your Own Pool for 30 Days
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