When selecting a robotic pool cleaner that blends premium performance with advanced smart features, two names consistently rise to the top: the Dolphin Explorer E70 vs Dolphin Nautilus CC Supreme. Both built by Maytronics, these robotic cleaners offer exceptional automation for in-ground pools up to 50 feet, excelling in debris removal, waterline scrubbing, and smart connectivity. However, their designs, navigation systems, and user flexibility differ in key areas.
In this detailed comparison, we evaluate every critical aspect of the Dolphin Explorer E70 and the Nautilus CC Supreme—from design and coverage to smart features and filtration—to help you choose the best robotic pool cleaner for your specific needs.
Contents
Differences Between Dolphin Explorer E70 vs Dolphin Nautilus CC Supreme
Design Comparison
The Dolphin Explorer E70 delivers a solid, ergonomically designed frame weighing 22 pounds, making it manageable for daily use while remaining durable for long-term reliability. Its streamlined profile, combined with dual carrying handles and a 60-foot tangle-free swivel cable, allows for easy transport and uninterrupted pool coverage. The top-loading multi-layer filtration system is simple to access and clean, reducing maintenance downtime between cycles. Designed to suit residential in-ground pools, it excels in evenly shaped and complex pool structures alike.
On the other hand, the Dolphin Nautilus CC Supreme is slightly heavier at 24 pounds and features a broader body with enhanced surface contact. Its triple-brush system gives it a powerful edge in grip and surface scrubbing, while the top-loading filter access simplifies debris disposal. Like the E70, the CC Supreme is equipped with a 60-foot anti-tangle swivel cable, providing seamless movement even in deep-end or large-lane pools. The build quality is robust and highly functional, making it an excellent choice for homeowners looking for a daily workhorse.
Winner: Dolphin Nautilus CC Supreme
With a more rugged design and triple active brush setup, the CC Supreme edges ahead in physical performance and grip, especially in pools with stubborn residue or varying surface textures.

Cleaning Performance Comparison
When it comes to pure cleaning power, both models are equipped with active brushes and capable of 3-zone cleaning, targeting the floor, walls, and waterline. The Dolphin Explorer E70 uses dual active brushes to agitate debris effectively while its 4,500 GPH suction rate pulls in large and fine particles into its multi-layer filtration system. Its standout feature is IntelliScan™, which intelligently maps your pool and adapts cleaning paths accordingly. Users can choose from various cleaning modes including floor-only, waterline-only, or full deep clean, making the E70 an excellent option for customized cleaning routines.
The Nautilus CC Supreme enhances scrubbing performance with three active brushes, including a center-mounted high-speed roller that excels in breaking down hard-to-remove debris. It also runs on three preset cleaning cycles—Quick, Standard, and Enhanced—providing flexibility based on time or intensity requirements. The Supreme’s filtration system is similar in layout to the E70’s but with a marginally higher capacity, allowing it to handle heavier debris loads without losing suction or requiring mid-cycle filter cleaning.
Winner: Dolphin Nautilus CC Supreme
Thanks to its triple brush design and larger filtration volume, the CC Supreme delivers a deeper scrub in a shorter window, particularly in pools with heavy organic buildup or frequent use.

Feature Comparison
The Explorer E70 is packed with advanced control features via the MyDolphin™ Plus App, enabling users to select cleaning modes, cycle durations, and create scheduled routines. Its integrated IntelliScan™ technology provides enhanced mapping and route optimization, making it more adaptable to pool shape and dirt distribution. This results in fewer missed spots and increased cleaning efficiency. The app also allows remote monitoring and control, which is perfect for users who manage pool care from a distance or want real-time updates.
The Nautilus CC Supreme also utilizes the MyDolphin™ Plus App, offering scheduling, start/stop controls, and status updates. However, it lacks the IntelliScan™ navigation present in the E70. Instead, it follows a predefined logic path that, while effective, isn’t as dynamically optimized. The app does let users toggle between its three cleaning modes and set up weekly schedules, but there is less flexibility in custom cycle control compared to the E70.
Winner: Dolphin Explorer E70
With smarter mapping and fully customizable cleaning modes, the Explorer E70 offers superior app-driven control and navigation intelligence for users who want precision over automation.
Quick Rundown Of Dolphin Explorer E70

Quick Rundown Of Dolphin Nautilus CC Supreme
Conclusion
Choose the Dolphin Explorer E70 if you want full control over cleaning modes, optimized smart navigation, and intelligent mapping that adapts to your pool. It’s the perfect solution for users who prefer to tailor each cleaning cycle based on current needs and demand maximum flexibility through app control.
Choose the Dolphin Nautilus CC Supreme if you prioritize brute scrubbing power, minimal setup, and excellent cleaning coverage with minimal input. Its triple-brush configuration, larger filtration basket, and durable design make it ideal for pools that experience high usage or frequent organic debris.
Overall Winner: Dolphin Nautilus CC Supreme
With its enhanced scrubbing power, larger debris capacity, and robust build, the Dolphin Nautilus CC Supreme emerges as the more powerful and effective robotic pool cleaner for most residential use cases. It delivers top-notch results with simplified operation, making it the smarter choice for homeowners seeking efficient, high-volume pool maintenance.