When evaluating reliable pool cleaning solutions for residential pools, the Dolphin Cayman vs Dolphin Explorer E20 consistently appear at the top of the shortlist. Designed for small to medium-sized in-ground and above-ground pools, both models deliver automated cleaning performance with varying degrees of efficiency, technology, and coverage.
In this in-depth comparison, we break down every meaningful specification and feature that separates these two robotic cleaners, helping you make the most informed decision.
Contents
Differences Between Dolphin Cayman vs Dolphin Explorer E20
Below is a summary of the specifications:
Design Comparison
Both the Dolphin Cayman and the Dolphin Explorer E20 feature compact, low-profile designs that allow for easy placement and retrieval from pools. The Cayman is lighter at 14 pounds, making it more convenient for users who want effortless lifting and minimal storage space. It includes an ergonomically integrated handle and a streamlined frame designed to reduce water drag during operation.
The Explorer E20 is slightly bulkier at 16.5 pounds, giving it a sturdier presence in the pool but also making it slightly more cumbersome to lift out when wet. However, its larger design supports broader cleaning contact with surfaces, giving it an edge in larger in-ground installations.
Both models use a 50-foot floating cable without a swivel mechanism, which requires occasional manual untangling. Neither cleaner includes a transport caddy, but their weight and shape allow for relatively easy portability without assistance.
Winner: Dolphin Cayman
The Cayman’s lighter weight and sleeker frame make it more portable and easier to manage for average pool owners, especially those prioritizing lightweight handling.
Cleaning Performance Comparison
In terms of pure cleaning capability, the Dolphin Cayman leverages its HyperBrush™ active scrubber, which rotates twice as fast as traditional brushes. This aggressive action enables the Cayman to lift and dislodge stubborn grime and algae with greater effectiveness, especially on vinyl, gunite, or fiberglass surfaces. The unit is designed to clean both floors and walls, though it doesn’t provide full waterline scrubbing.
The Dolphin Explorer E20 also supports floor and wall cleaning, but it uses a standard active brush with a slower rotation speed. While it still provides reliable cleaning, its contact intensity is slightly lower than the Cayman, meaning more passes may be required for tougher debris.
Both models use efficient DC motors, consuming minimal electricity while producing a robust suction rate of 4,000 gallons per hour. The cycle time of 2 hours ensures timely cleaning of pools up to 33 feet long.
When comparing filtration systems, the Cayman is equipped with a fine filter basket that captures dirt, sand, and even smaller particulate debris. The Explorer E20 features a top-load filtration basket as well, with similar fine-mesh construction that ensures high capture efficiency. While both perform exceptionally with small and medium debris, the Cayman’s basket has a slightly more accessible design for faster rinse-and-replace routines.
Neither model provides full waterline scrubbing, but both climb high enough on the walls to keep vertical surfaces visibly clean.
Winner: Dolphin Cayman
With more aggressive brushing, similar suction power, and a user-friendly filter design, the Cayman delivers slightly stronger cleaning efficiency across the board.
Feature Comparison
Both the Cayman and Explorer E20 operate without Wi-Fi, app integration, or scheduling features. Their interface is simple: plug them in, drop them in the water, and let the internal software do the rest.
The Cayman uses SmartNav 2.0 scanning technology to optimize its cleaning pattern. This algorithm maps the pool’s layout to avoid unnecessary overlap, maximizing efficiency during each 2-hour session. It also adapts slightly over time for recurring cleaning needs.
The Explorer E20 incorporates CleverClean™ navigation, which serves a similar purpose. It enables the robot to scan and calculate the most effective route across the floor and walls. Both systems eliminate random wandering and ensure full coverage without wasting time or power.
In terms of ease of use, both models are intuitive. They feature top-loading filter access, which is more convenient than bottom-access designs. The Cayman’s handle is easier to grip and lift, especially during post-cleaning retrieval, whereas the E20 may require a bit more effort due to its extra weight.
Neither robot includes advanced timers, remote controls, or app-based scheduling. All programming is handled internally, making them suitable for users seeking a “drop-and-go” experience without technical complexity.
Winner: Tie
Both models offer similarly effective navigation and simple usability. While the Cayman is slightly easier to manage physically, the Explorer E20 delivers comparable intelligence and cleaning consistency.
Quick Rundown Of Dolphin Cayman
Quick Rundown Of Dolphin Explorer E20
Conclusion
Choose the Dolphin Cayman if you want a lightweight, aggressive cleaner that delivers superior scrubbing performance and easy filter maintenance. Its HyperBrush system, smart scanning technology, and lighter build make it ideal for pool owners who value powerful results with effortless handling.
Choose the Dolphin Explorer E20 if you need a sturdy in-ground pool cleaner with consistent wall performance and reliable mapping. It’s well-suited for users who prefer a heavier-duty design and want dependable coverage of floors and walls in standard residential pools.
Overall Winner: Dolphin Cayman
With enhanced brushing speed, a user-friendly design, and top-tier debris handling, the Dolphin Cayman proves to be the more efficient and accessible robotic pool cleaner across a variety of residential pool scenarios.