Dolphin Cayman
$1299
$1049
Save $250
2 years manufacturer warranty
Dolphin Cayman vs Dolphin Nautilus EON 120D
A side-by-side comparison of the Dolphin Cayman and Dolphin Nautilus EON 120D — price, filtration, cleaning coverage, brushes and warranty — to help you pick the right Dolphin robotic pool cleaner.
Dolphin Nautilus EON 120D
$1199
1 year manufacturer warranty
| Feature | Cayman | Nautilus EON 120D |
|---|---|---|
| Overview | ||
| Price | $1299$1049 | $1199 |
| Lineup | Max-Series™ | Nautilus™ (cordless) |
| Best for | In-ground or above-ground | Longest cordless runtime |
| Pool size | Up to 33 ft | Up to 50 ft |
| Cleaning coverage | Floor + Walls | Floor + Walls + Waterline + Steps |
| Cleaning cycle | 2 hours | Up to 4.5 hours per charge |
| Suction | 4,000 GPH | Battery powered |
| Scrubbing brushes | 2 (HyperBrush™) | 1 (active) |
| Filtration | MaxBin™ | Multi-layer top-load cartridge |
| Standout features | ||
| Waterline cleaning | No | Included |
| MaxBin™ filtration | Included | No |
| HyperBrush™ scrubbing | Included | No |
| App control | No | Included |
| Corded power | Included | No |
| Navigation & ownership | ||
| Navigation | SmartNav 2.0™ | Smart Navigation with edge return |
| Weekly scheduling | Weekly timer | Scheduling in the app |
| App control | No app control | MaytronicsOne (Wi-Fi) |
| Cable | 50 ft (no swivel) | None (cordless) |
| What is included |
|
|
| Warranty | 2 years | 1 year |
Dolphin Cayman vs Dolphin Nautilus EON 120D: how they compare
The Dolphin Cayman is part of the Max-Series™ lineup — the best-value Max-Series™ performer with a weekly timer, for in-ground or above-ground pools. It cleans pools up to 33 ft with floor + walls coverage and MaxBin™ filtration, backed by a 2-year warranty.
The Dolphin Nautilus EON 120D is part of the Nautilus™ (cordless) lineup — the step-up cordless Nautilus: up to 4.5 hours per charge, five cleaning modes and automatic edge return. It handles pools up to 50 ft with floor + walls + waterline + steps coverage and Multi-layer top-load cartridge filtration, backed by a 1-year warranty.
Our verdict: the Dolphin Cayman wins
The Dolphin Cayman is our pick. As part of the Max-Series™ — one of our two top-recommended lineups — it steps ahead of the Dolphin Nautilus EON 120D with floor + walls coverage, MaxBin™ filtration and a 2-year warranty.
Best of all, it comes in at $1049 — the same or less than the Dolphin Nautilus EON 120D — so it's the clear value winner too.
Not sure yet? We're here to help
Every Dolphin Max-Series™ and ProLine™ robotic pool cleaner ships free and is backed by a full manufacturer warranty — explore our top-recommended robots and find the right fit for your pool.
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