When comparing robotic pool cleaners, two standout contenders in the mid-range category are the Dolphin Explorer E20 vs Dolphin Nautilus CC Plus Wi-Fi. Both are trusted in-ground pool cleaning solutions from Maytronics, yet they offer different strengths that cater to specific pool sizes, control preferences, and cleaning expectations.
Below, we dive into a detailed side-by-side comparison that will help pool owners choose the more efficient, capable, and value-driven machine.

Contents
Differences Between Dolphin Explorer E20 vs Dolphin Nautilus CC Plus
Below is a summary of the specifications:




Design Comparison
The Dolphin Explorer E20 is a compact and lightweight robotic pool cleaner designed for in-ground pools up to 33 feet in length. It weighs only 16.5 lbs, making it easy to lift, carry, and store. It uses a 50 ft power cable, but lacks an anti-tangle swivel, which can occasionally result in cable twists during longer cleaning cycles. The E20 features a single active brush and is capable of cleaning both the floor and the walls of the pool with decent grip due to its tracked mobility system.
On the other hand, the Dolphin Nautilus CC Plus Wi-Fi is built for larger pools up to 50 feet. Its 60 ft swivel cable prevents tangling, especially important for larger or freeform pools where coverage is more complex. Weighing 19 lbs, it’s slightly heavier but still manageable for regular use. This model features a more robust body design and dual scrubbing brushes, giving it an advantage in terms of grip and agitation power. Its wider coverage and premium build are better suited for large residential pools with curves and inclines.
Winner: Dolphin Nautilus CC Plus Wi-Fi
With a longer swivel cable, stronger scrubbing mechanism, and support for larger pools, the Nautilus CC Plus Wi-Fi offers superior design for extended, tangle-free cleaning.

Cleaning Performance Comparison
The Dolphin Explorer E20 performs well in floor and wall cleaning, thanks to its active front brush and 4000 GPH suction rate. It completes its cleaning cycle in 2 hours and is optimized for smaller in-ground pools with straightforward layouts. However, it does not clean the waterline, which may leave a visible ring over time unless manually addressed.
In contrast, the Dolphin Nautilus CC Plus Wi-Fi is a much more complete cleaning machine. It not only scrubs the floor and walls but also includes dedicated waterline scrubbing, ensuring the most visible part of the pool remains spotless. The unit uses dual scrubbing brushes and a 4500 GPH suction rate, giving it the strength to handle leaves, sand, algae, and fine debris more effectively. Its larger filter basket supports both fine and ultra-fine filtration, enabling better debris collection without clogging.
Winner: Dolphin Nautilus CC Plus Wi-Fi
With waterline coverage, greater suction power, and enhanced brush systems, the Nautilus CC Plus Wi-Fi delivers a deeper and more comprehensive clean.

Feature Comparison
The Explorer E20 is designed to be straightforward and user-friendly, without digital complexity. It operates with a basic cleaning algorithm and requires manual operation for each cycle. There is no Wi-Fi, no app control, and no scheduling feature. It’s a reliable workhorse but lacks automation or smart customization.
The Nautilus CC Plus Wi-Fi is equipped with Wi-Fi connectivity and integrates with the MyDolphin™ Plus App, offering full remote control via smartphone. Pool owners can start, stop, and schedule cleanings remotely. The model also features smart navigation, allowing it to map the pool’s dimensions and adjust its cleaning path for better coverage and efficiency. The weekly scheduler lets users set recurring cleaning cycles, creating a “set it and forget it” experience that minimizes hands-on management.
Winner: Dolphin Nautilus CC Plus Wi-Fi
With advanced features like app control, smart navigation, and weekly scheduling, the Nautilus CC Plus Wi-Fi is the superior choice for pool owners seeking convenience and automation.
Quick Rundown Of Dolphin Explorer E20
Quick Rundown Of Dolphin Nautilus CC Plus
Conclusion
Choose Dolphin Explorer E20 if you need an efficient, simple, and budget-friendly robotic cleaner for a smaller in-ground pool. It’s perfect for pool owners who want a plug-and-play cleaner that reliably handles floors and walls, with minimal tech involvement and consistent performance.
Choose Dolphin Nautilus CC Plus Wi-Fi if you have a larger pool or prefer a more hands-off, automated cleaning experience. Its Wi-Fi control, smart navigation, and full-surface cleaning including waterline make it a more powerful and intelligent solution for serious pool maintenance.
Overall Winner: Dolphin Nautilus CC Plus Wi-Fi
With superior suction, broader cleaning coverage, waterline scrubbing, smart scheduling, and app control, the Dolphin Nautilus CC Plus Wi-Fi is the more advanced and future-ready robotic pool cleaner. It provides exceptional value for homeowners who prioritize convenience, automation, and full-pool cleanliness.