Dolphin Cayman
The stronger value choice for floor-and-wall cleaning, with faster scrubbing, a larger filter bin and automatic weekly scheduling.
Free shipping & 30-day trial on every order.
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M‑Series robotic pool cleaners
Our top picks
Max‑Series™ & ProLine™
Side by side
Compare the Dolphin M400, M550 and M600 by pool size, floor-to-waterline coverage, filtration, app control and warranty.
| Model |
M400
|
M550
|
M600
|
|---|---|---|---|
| Availability | Authorized dealers | Authorized dealers | Authorized dealers |
| Pool size | 50 ft | 50 ft | 50 ft |
| Cleans | Floor, Walls and Waterline | Floor, Walls and Waterline | Floor, Walls and Waterline |
| Filtration | Fine Filter Kit; Ultra-Fine Filter Kit | Combine Filter Kit; Ultra-Fine Filter Kit | Multi-Layer; Ultra-Fine Filter Kit |
| Cleaning cycle | 2.5 hours | 2 hours | 2 hours |
| Navigation | Maytronics navigation | Maytronics navigation | Maytronics navigation |
| Weekly timer | Yes | Yes | Yes |
| App control | MyDolphin™ Plus | MyDolphin™ Plus | MyDolphin™ Plus |
| Warranty | 3 years | 3 years | 3 years |
| Details | View model | View model | View model |
Recommended before you buy
Shopping the Dolphin M‑Series lineup? Before visiting a dealer, compare our Max‑Series™ and ProLine™ favorites. The Cayman, Quantum and Premier cover three levels of cleaning performance and are available to buy online with live pricing, free shipping, a 30-day in-pool trial and no restocking fee.
The stronger value choice for floor-and-wall cleaning, with faster scrubbing, a larger filter bin and automatic weekly scheduling.
Our recommended step up for complete pool coverage, pairing dual HyperBrushes with the XXL MaxBin and included NanoFilters.
The premium choice for leaves and fine debris, with commercial-grade motors and four interchangeable filtration options.
Every model
Choose a model to review pool size, cleaning coverage, filtration, cycle time, app control and warranty.
Contact a dealer for pricing
Dolphin M400 robotic pool cleaner for pools up to 50 ft. Compare floor, wall and waterline cleaning, filtration, warranty and availability.
View Model
Contact a dealer for pricing
Dolphin M550 robotic pool cleaner for pools up to 50 ft. Compare floor, wall and waterline cleaning, filtration, warranty and availability.
View Model
Contact a dealer for pricing
Dolphin M600 robotic pool cleaner for pools up to 50 ft. Compare floor, wall and waterline cleaning, filtration, warranty and availability.
View Model
Dealer model or direct purchase?
A dealer-exclusive Dolphin M‑Series model may be right when you want local service or a specific configuration. If you prefer to see price and inventory up front, buy online and test the cleaner in your own pool, compare Max‑Series™ or ProLine™ first.
Buy direct with confidence
Shop Max‑Series™ and ProLine™ online with free shipping, a 30-day in-pool trial and no restocking fee, so you can make sure the cleaner fits your pool before keeping it.
