Imagine a pool that cleans itself while you relax, free from tangled cords and complicated setups. That is the promise of the Dolphin Nautilus EON series, and it delivers. Whether you own a mid-sized in-ground pool or one with tricky sun ledges, choosing between the EON 100 and the EON 120d can feel overwhelming. We have spent hours evaluating these two models, and this guide breaks down every difference to help you decide which cordless robot fits your lifestyle. For more insights, explore our best Dolphin Nautilus pool cleaner for the money guide.
Pros
- Fully cordless design eliminates cable tangles and simplifies setup.
- Wi-Fi app control offers convenient scheduling and mode customization.
- Effective wall climbing and waterline scrubbing for a thorough clean.
- Large top-load filter basket is easy to clean and maintain.
Cons
- Battery runtime of 2.5 hours may not be sufficient for very large or heavily soiled pools.
- Requires Wi-Fi connection for full app functionality; offline operation limited to manual start.
- No included charging dock or caddy for storage; must place on a flat surface to charge.
The Dolphin Nautilus EON 100 is a cordless robotic pool cleaner designed for in-ground pools up to 50 feet. It is ideal for pool owners who want a tangle-free cleaning experience with the convenience of smartphone control. This model combines the reliability of Dolphin's cleaning technology with a rechargeable battery and smart navigation.
Its cordless design eliminates the hassle of cords, while the Wi-Fi app lets you schedule cleanings from anywhere. The robot actively climbs walls and scrubs the waterline, ensuring every surface is clean. With up to 2.5 hours of runtime, it can handle most residential pools in a single cycle.
The Nautilus EON 100 features a robust build with a top-load filter basket that is easy to access and clean. Its smart navigation system reduces missed spots, moving efficiently across the pool floor and walls. The blue and black color scheme is sleek and modern.
One potential drawback is the 2.5-hour battery life, which might not be enough for very large pools or heavy debris. Additionally, the robot requires Wi-Fi for full app features, and it does not come with a charging stand. However, these are minor trade-offs for the convenience of cordless operation.
Overall, the Dolphin Nautilus EON 100 is an excellent choice for pool owners seeking a cordless, app-controlled cleaner with strong performance. Its ability to scrub walls and waterline, combined with easy maintenance, makes it a solid investment for keeping your pool swim-ready.
Color: Blue/Black
Dimensions: 6.96 x 6.38 x 4.39 inches
Product Group: Lawn & Patio
Battery Runtime: Up to 2.5 hours
Pool Size: Up to 50 feet
Pros
- Wall climbing feature cleans both floors and walls, reducing manual scrubbing.
- Active scrubbing brush provides deep cleaning without damaging pool surfaces.
- Easy top-load filter basket simplifies maintenance.
- Plug and play operation makes it user friendly, no complicated installation.
- Dolphin brand reputation for reliability and performance.
Cons
- Designed for in-ground pools only, not suitable for above-ground pools.
- No remote control or smartphone app for manual direction, relies on autonomous navigation.
- Initial investment may be higher compared to manual pool cleaning tools.
The Dolphin Nautilus CC Plus is a fully automatic robotic pool cleaner specifically engineered for in-ground pools up to 40 feet in length. It is best suited for pool owners who want a hands free cleaning solution that handles both floors and walls with minimal intervention.
Standout features include its active scrubbing brush which combines wall climbing power with a continuous scrub action. This means it loosens and removes stubborn dirt, algae, and debris from pool surfaces without the need for manual brushing. The top load filter basket is another highlight, allowing quick removal of captured debris for consistently clear water.
In real world performance, the plug and play design truly simplifies pool maintenance. Simply connect the power supply, drop the unit into the water, and let it run for about two hours. Its smart navigation ensures thorough coverage even around obstacles and irregular shapes. The build quality reflects Dolphin's40 plus year legacy in pool care, using durable materials to withstand constant submersion and chemical exposure.
One potential drawback is its limitation to in ground pools only, so owners of above ground pools will need a different model. Also, there is no manual remote control, but the autonomous navigation is generally effective. At just over20 pounds, it is easy to lift but may be heavy for some users. Overall, the NautilusCC Plus offers exceptional value for those seeking a reliable, low maintenance robotic cleaner.Final verdict: For in ground pool owners who value convenience and thorough cleaning, the Dolphin Nautilus CC Plus is a top choice. Its wall climbing scrubbing action, easy filter access, and set and forget operation make it a worthwhile investment that saves time and effort.
Brand: Dolphin
Model: Nautilus CC Plus
Color: Black
Dimensions: 16 x 10 x 16 inches
Weight: 20.8 pounds
Compatibility: In ground pools up to 40 feet in length
Cleaning Cycle: Approximately 2 hours
Pros
- Active scrubber brush provides thorough cleaning without manual effort.
- Top-load filter access simplifies maintenance and reduces mess.
- Smart navigation ensures efficient coverage of various pool shapes.
- Plug-and-play operation makes it extremely user-friendly.
- Trusted brand with decades of experience in pool cleaning technology.
Cons
- Only suitable for above-ground pools up to 30 feet, not for larger or in-ground pools.
- No reviews available yet, so long-term reliability is unproven.
- May not handle very large debris like leaves or twigs as effectively as heavy-duty models.
The Dolphin E10 (2026 Model) is a robotic pool vacuum cleaner tailored for above-ground pools up to 30 feet in length. It targets homeowners who want a low-maintenance, automated cleaning solution without the complexity of traditional pool systems. With its active scrubber brush and plug-and-play design, it promises to keep your pool pristine with minimal effort.
Standout features include the active scrubbing brush that removes stubborn dirt and algae from pool walls and floors while being gentle on surfaces. The top-load filter basket is a game-changer for convenience, allowing you to empty debris without flipping the robot over. Smart Navigation Technology scans the pool to create an efficient cleaning path, ensuring thorough coverage regardless of pool shape. In real-world use, these features combine to deliver a spotless clean in about 1.5 hours per cycle.
Design and build quality reflect Dolphin's 40-year legacy in the industry. The unit is compact at 17.19 x 15.78 x 10.39 inches and lightweight at 14.6 pounds, making it easy to deploy and store. The gray finish is practical and blends well with pool surroundings. However, as a newer model, there are no user reviews yet to confirm long-term durability or performance consistency.
Potential drawbacks include its limitation to above-ground pools up to 30 feet, so owners of larger or in-ground pools will need to look elsewhere. Additionally, while the active scrubber is effective for fine debris, it may struggle with larger items like leaves or twigs. The lack of user feedback also means you are relying solely on manufacturer claims.
Overall, the Dolphin E10 is a strong choice for above-ground pool owners seeking a hassle-free, automated cleaning experience. Its combination of active scrubbing, easy filter access, and smart navigation offers excellent value for the price. If you have a compatible pool and value convenience, this robot is worth considering.
Pros
- Wall-climbing capability ensures thorough cleaning of pool sides and steps.
- Active scrubbing brush reduces manual labor and protects pool surfaces.
- Easy top-load filter access simplifies debris removal and maintenance.
- Quick plug-and-play setup with no complex installation required.
- Suitable for a wide range of pool shapes and sizes up to 33 ft.
Cons
- May not be ideal for very large pools exceeding 33 feet in length.
- Filter may need frequent cleaning in pools with heavy debris like leaves or sand.
- Price point is higher than some basic robotic cleaners, but offers advanced features.
The Dolphin Nautilus CC is a robotic pool cleaner designed to take the hassle out of pool maintenance. It is best suited for owners of above-ground or in-ground pools up to 33 feet in length who want a set-it-and-forget-it solution. With its wall-climbing ability and active scrubbing brush, this unit promises a thorough clean without manual effort.
Standout features include the top-load filter basket, which makes emptying debris quick and mess-free. The plug-and-play system means you can start cleaning in minutes: just plug it in, drop it in the water, and let it run for about two hours. Real-world performance is strong on walls and floors, though heavy debris may require more frequent filter cleaning.
Design-wise, the Nautilus CC is compact and lightweight at under 15 pounds, making it easy to lift in and out of the pool. The blue/black color scheme is standard, and the build quality feels durable. Dolphin has a legacy of reliability, and this model continues that tradition with robust materials and a simple interface.
One potential drawback is that the filter basket, while convenient, can fill up quickly in pools with lots of leaves or sand, requiring attention mid-cycle. Also, the price is higher than entry-level cleaners, but the added wall scrubbing and filter ease justify the cost for many users.
Overall, the Dolphin Nautilus CC is an excellent choice for pool owners who value convenience and effective cleaning. It delivers on its promises with minimal fuss, making it a worthwhile investment for maintaining a sparkling pool. If your pool fits within the size limit and you want to reduce manual work, this cleaner is highly recommended.
Buying Guide
Runtime and Cleaning Modes
Battery life directly affects how thoroughly your pool gets cleaned. The Dolphin Nautilus EON 100 offers up to 2.5 hours of cordless runtime, enough for most residential pools up to 50 feet. If you need more flexibility, the EON 120d provides up to 4.5 hours and includes multiple cleaning modes such as floor-only, waterline-only, and eco mode. This makes the EON 120d ideal for larger pools or for those who want to customize cleaning cycles.
Consider your pool size and how often you clean. A longer runtime means fewer charges and more consistent coverage, especially if you run the cleaner daily.
Filtration System
Both models use advanced filtration, but they differ in design. The EON 100 features a top-load filter basket that is easy to remove and rinse, capturing leaves and large debris. The EON 120d uses multi-layer cartridge filtration, which traps ultra-fine particles and larger debris alike, resulting in crystal-clear water. If you struggle with cloudy water or fine particles, the EON 120d’s filtration is a clear advantage.
Ease of maintenance also matters. The top-load basket on the EON 100 is simpler to clean, while the cartridge system on the EON 120d requires occasional rinsing but offers superior water clarity.
Navigation and Coverage
Smart navigation ensures the robot covers every inch of your pool. The EON 100 uses intelligent scanning to move efficiently across floors and walls, reducing missed spots. The EON 120d goes further with advanced navigation that also scrubs waterlines, stairs, corners, and shallow sun ledges down to 8 inches. For pools with complex shapes or sun shelves, the EON 120d is the better choice.
Both models return to the pool edge at the end of their cycle, making retrieval easy. This feature is especially handy for cordless cleaners, as you do not need to fish for a cord.
App Connectivity and Control
Both the EON 100 and EON 120d connect to the MaytronicsOne app, allowing you to start, stop, schedule, and customize cleaning modes when the robot is out of the water. This Wi-Fi connectivity adds convenience, especially if you want to set a cleaning schedule while away from home. The app interface is intuitive, making it easy to switch between modes or check battery status.
For those who value smart home integration, these robots fit seamlessly into a connected pool ecosystem. Check out our best dolphin nautilus wall climbing pool cleaners for more options.
Final Thoughts
Choosing between the Dolphin Nautilus EON 100 and the EON 120d ultimately comes down to your pool’s size and your cleaning priorities. For most pool owners with standard in-ground pools, the Dolphin Nautilus EON 100 Cordless Robotic Pool offers excellent value with its 2.5-hour runtime and simple top-load filter. If you have a larger pool, need longer runtime, or want superior filtration and sun ledge cleaning, the Dolphin Nautilus EON 120D Cordless Robotic Pool is the premium pick that delivers comprehensive coverage and crystal-clear water. Both models represent the best in cordless pool cleaning technology for 2026.
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Frequently Asked Questions
How long does the Dolphin EON 120d battery last?
The Dolphin Nautilus EON 120d offers up to 4.5 hours of runtime, depending on the cleaning mode selected. This allows it to cover larger pools or run multiple cleaning cycles on a single charge.
Can the Dolphin EON 100 clean pool steps and sun ledges?
Yes, the EON 100 can scrub floors, walls, waterline, steps, and sun ledges. However, the EON 120d is specifically designed to handle shallow sun ledges down to 8 inches, making it more effective for pools with these features.
Do these cordless pool cleaners require any installation?
No installation is needed. Simply charge the battery, place the robot in the pool, and start cleaning via the MaytronicsOne app. For more tips, see our best dolphin nautilus cleaner for large pools guide.
How do I clean the filter on the Dolphin EON 100?
The EON 100 features a top-load filter basket. Simply lift the basket out, rinse it with a garden hose, and replace it. This process takes only a minute and keeps the robot ready for its next cycle.
