
Dolphin Cayman
Best for: Best value wall-climber
CoverageFloor, walls & waterline
Pool sizeUp to 50 ft
Warranty2 years
Part of the Dolphin Proteus lineup · compare all 5 models
Last confirmed price.
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Three in-stock cleaners at a similar price, with free shipping and expert support from Pool Robots.

Best for: Best value wall-climber
CoverageFloor, walls & waterline
Pool sizeUp to 50 ft
Warranty2 years

Best for: Best all-around inground pick
CoverageFloor, walls & waterline
Pool sizeUp to 50 ft
Warranty2 years

Best for: Premium clean without the UV price
CoverageFloor, walls & waterline
Pool sizeUp to 50 ft
Warranty3 years
Schedule your week, choose cycle modes, and steer manually from anywhere.
Lateral water jets keep dual brushes locked along the tile scum line.
Includes app-assisted waterline retrieval and rapid bottom water release.
Top-access basket captures both spring leaves and fine summer silt.
Run fast floor touch-ups or full 2–2.5 hr floor/wall/waterline cleans.
Covers inground pools up to 50 ft efficiently.
The Proteus DX5i has a strong review record — four stars across several hundred reviews. It pairs Wi-Fi scheduling with real waterline scrubbing at 17.4 lb, which is a genuinely good combination.
Maytronics is specific here: the DX5i maintains constant grip on the wall, which is what gives the brush sustained contact with the tile band. A robot that loses traction near the top gets a fraction of a second on the waterline and leaves the grey line intact.
MyDolphin Plus handles recurring schedules and remote start. Set it overnight and the pool is ready in the morning without you touching anything.
17.4 lb puts it among the lightest corded robots with this feature set. That matters every single time you take it out.
The Dolphin Quantum covers similar ground at a comparable size and is worth comparing with the DX5i.
Compare our available from Pool Robots Dolphin Explorer E50 Wi-Fi or ProLine™ Dolphin Quantum (roomy XXL MaxBin™ + 360° swivel).
| Model Name | Proteus DX5i |
|---|---|
| Material | Plastic |
| Color | multi-colored |
| Power Source | Corded Electric |
| Other Special Features of the Product | Set |
| Control Method | App |
| Voltage | 120 volts |
| Battery Description | Lithium-Ion |
| Engine Type | Electric (Battery Powered) |
| Item Dimensions L x W x H | 22.2"L x 17.6"W x 12.8"H |
| Item Weight | 17.4 pounds |
| Hose Length | 60 feet |
| Installation Type | Portable |
| Number of Items | 1 |
| Manufacturer Warranty Description | Two Year Limited Warranty |
| Model Number | 99996212-LSWIF |
| Manufacturer Part Number | 99996212-LSWIF |
| Product Care Instructions | Rinse filter, clean brushes, and store properly |
| GTIN | 724131499969 |
Specifications come from the manufacturer or Amazon listing.
This model next to the three ProLine™, Max-Series™ and Clear™ robots closest to its price. Use the dropdowns to put any robot in a column: every Dolphin line, the Clear™ Series, and the other brands we carry.
| Model |
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Dolphin Proteus DX5i
$1299
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Top pick
![]() $1079
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Top pick
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Top pick
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|
|---|---|---|---|---|
| Price | $1299 | $1079 | $1649 | $1749 |
| Power | Corded | Corded (low-voltage) | Corded (low-voltage) | Corded (59-ft swivel cable) |
| Pool size | In-ground | Up to 50 ft | Up to 50 ft | Up to 50 ft |
| Coverage | Floor, walls & waterline | Floor, walls & waterline | Floor, walls & waterline | Floor, walls & waterline |
| Control | MyDolphin Plus app | Weekly timer (power supply) | Weekly timer (power supply) | CLEAR app (Wi-Fi) |
| Filtration | Top-load filter basket | MaxBin™ top-load basket (NanoFilter™-ready) | XXL MaxBin™ top-load + NanoFilters™ | UltraFilter™ (1μm / 180μm) |
| Cycle / runtime | Scheduled or on demand | 2 hours | 2 hours | — |
| Warranty | Two Year Limited Warranty | 2 years | 2 years | 3 years |
| Owner rating | 3.9 (258 reviews) | — | — | — |
| Best for | The best-reviewed Dolphin on this page | Best value wall-climber | Best all-around inground pick | Premium clean without the UV price |
Prices are current as of our latest check. Every column links to that model's own page.
No — it's outside our catalog, so this page links to Amazon.
Yes. Constant wall grip keeps the brush in contact with the tile band throughout the climb.
MyDolphin Plus, for scheduling, remote start and monitoring.
The Proteus DX5i uses our genuine Maytronics 120W Wi-Fi Power Supply (99956085-ASSYV4).

ICO tests your water every hour and tells you exactly what to add—before cloudy water or algae ruins the weekend.