by Robert Knight
Head-to-Head Review and Comparison
Compare the pros and cons of each robot
Highs
Lows
A side-by-side look at the key features and which robot includes each.
High-tech, plated filters are able to capture microscopic algae, debris, sand, and more in your pool water - all while increasing water clarity. To use, just simply snap them in and your robot is ready. NanoFilters are a must have for any pool robot.
90% of the bacteria in your pool is on the waterline. Don't get confused with robots that are "Wall Climbing". There is a big difference. Waterline cleaning means the robot actively scrubs and sticks to the waterline scrubbing away this problem area in the pool. It is a feature you don't want to miss.
Wall climbing allows the robot to clean and climb the walls of your pool. However, don't get this confused with waterline cleaning. A robot without waterline cleaning will only clean the walls of your pool. It will miss the dirtiest part of your pool, the waterline, where 90% of all algae and bacteria is in your pool.
With its SmartPhone App, you can schedule cleanings, manually control, and fine tune your pool robot. The app makes managing your pool cleaning effortless and convenient.
With an Anti-tangle Swivel, the robot can fully explore and clean your pool without ever getting stuck. The innovative design allows the robot to move freely 360 degrees around your pool, without ever knotting the cord.
A robotic pool cleaner saves hundreds of dollars a year in energy when compared to pressure-side or suction-side cleaners. Powered by energy efficient DC motors, a robotic pool cleaner can be 90% more efficient than its counterparts.
Set up has never been easier. No installation needed. Your robot is ready to go right out of the box. No extra pumps, plumbing, or anything else needed. Simply plug it in and start cleaning!
This technology ensures that the most efficient route is used to clean your pool floor. So smart, the system automatically navigates around obstacles and quickly returns to its route. You'll want to look for SmartNav, as we found it performed best in our testing.
Watch reviews and tutorials
Compare the Cayman and T55i spec-for-spec across every category
| Robot | Dolphin Cayman
|
Dolphin T55i
|
|---|
| Pool Types | In Ground | In Ground |
|---|---|---|
| Pool Size | 33 ft | 50 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 |
| Waterline Cleaning | No | Yes |
|---|---|---|
| Number of Filters Included | 1 | 1 |
| Filter Cleaning | Filter Basket | Top Access |
| Cleaning Coverage | Floor, Walls | Floor, Walls and Waterline |
| Cleaning Cycle(s) | 1.5 hrs | 1.5, 2 hrs |
| Number of Brushes | 1 | 2 |
| Remote operation | No | No |
|---|---|---|
| WiFi / Bluetooth | WiFi: No Bluetooth: No |
WiFi: Yes Bluetooth: Yes |
| Smartphone App | No | Yes |
| Automated Weekly Timer | Yes | Yes |
| Full Bag Indicator | No | No |
|---|---|---|
| Cable Length | 50 ft | 60 ft |
| Anti-Tangling Swivel | No | Yes |
| Restocking Fee | No No Restocking Fee Ever. |
No No Restocking Fee Ever. |
| Warranty | 2 Years | 2 Years |
| Caddy Included | Optional Caddies Available | Optional Caddies Available |
| Official Website | Cayman Official Site | |
| Part Number | 99996135-SPL | 99996245-WINI |
| ASIN | B07TMRFS4H |
Compare prices for Cayman and T55i — get the best deal from trusted retailers
| Seller | Buy From | Robot | Shop Online |
|---|---|---|---|
 |
$799 | Cayman | Shop At Amazon |
 |
$709 | Cayman | Shop At Poolbots |
 |
$747 | Cayman | Shop At PoolRobots |
|
T55i | Shop At Poolbots | In-Store Exclusive | $1699 | T55i | Similar Robots |
Essential add-ons for your pool robot
Weather and UV-resistant storage solution. Premium resin coating protects against scratches, weathering, and UV damage. The ultimate protection for your investment.
A robotic pool cleaner is an investment, so make sure to protect it. The Dolphin Universal Caddy is a solid option for easy storage and transport.
Need extra filters, replacement power supply, or new climbing rings? Shop all replacement parts for Dolphin and Dolphin models.
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