In the era of cable-free convenience, the Dolphin Liberty series by Maytronics brings a refreshing shift in how pool owners maintain their pools. The Dolphin Liberty 200 vs Dolphin Liberty 400 represent two ends of this innovative cordless lineup—one built for simplicity and efficiency, the other engineered for advanced smart integration and full pool coverage. Both are battery-powered, magnetically charged, and designed for in-ground and above-ground pools up to 33 feet in length. However, key distinctions in smart features, cleaning reach, and automation separate them significantly.
In this detailed comparison, we evaluate both models across all core categories—from design and performance to filtration and smart controls—to determine which robotic pool cleaner provides the best value for your specific needs.
Contents
Differences Between Dolphin Liberty 200 vs Dolphin Liberty 400
Design Comparison
The Dolphin Liberty 200 and Liberty 400 share a clean, minimal aesthetic typical of the Liberty line. Both are built for portability and easy deployment, with the Liberty 200 weighing in at 17 pounds and the Liberty 400 slightly heavier at 18 pounds due to added components like sensors and Bluetooth hardware. The cordless design eliminates the hassles of long cables and tangling, instead using magnetic-induction charging that locks onto a small contact pad at the rear of the robot for a fully waterproof charge.
Both units include a single active front brush that helps dislodge dirt and grime during cleaning cycles, and the floating handle design makes them simple to remove from the water. The Liberty 400 includes Click-Up™ technology, which allows the robot to respond to a retrieval pole, automatically surfacing for collection—a small but clever feature that reduces effort when retrieving it from deeper pools.
Winner: Dolphin Liberty 400
While both designs are compact and efficient, the Click-Up™ retrieval feature and slightly more durable construction give the Liberty 400 a practical edge in ease of use.

Cleaning Performance Comparison
The Liberty 200 delivers dependable performance on pool floors and partial walls, thanks to its active brush and efficient navigation. It provides a fixed 1.5-hour cycle, during which it effectively targets flat surfaces and sloped edges. Its strength lies in routine cleaning for smaller or simpler pool geometries where waterline debris and steep inclines are less of a concern.
The Liberty 400, on the other hand, offers full wall climbing and waterline scrubbing, supported by intelligent cleaning logic that adapts to vertical surfaces. It performs a thorough clean across all pool zones, including the tricky tile line, which is often neglected by entry-level models. The Liberty 400 also introduces Eco Mode, which automatically initiates a light clean every 48 hours, extending pool cleanliness between full sessions. This mode is battery-efficient and ideal for daily maintenance, requiring little intervention from the user.
Both units use a top-load fine filter basket, capable of trapping fine sand, dust, and small debris. However, the Liberty 400 supports optional filter upgrades, giving it greater versatility for pools with varying debris types or high pollen levels.
Winner: Dolphin Liberty 400
With superior climbing ability, waterline scrubbing, optional filtration upgrades, and Eco Mode efficiency, the Liberty 400 offers deeper and more comprehensive cleaning coverage.

Feature Comparison
The Dolphin Liberty 200 keeps things ultra-simple with no Wi-Fi, no scheduling, and no smart modes. A single power button controls operation, and users must manually start each cleaning session. This approach appeals to users who want a hands-on, minimalist cleaning experience without the need to engage with apps or customization.
In contrast, the Liberty 400 brings high-end intelligence to the cordless category. Through the MyDolphin™ Plus App, users can schedule cleanings, activate Eco Mode, monitor battery status, and even receive maintenance notifications. The app-based experience mirrors that of Maytronics’ premium wired models and elevates the Liberty 400 into a smart home-compatible pool cleaning device.
Additionally, the Click-Up™ feature enhances retrieval convenience, and Eco Mode allows for continuous maintenance across multiple days without a full re-clean. Combined, these features allow the Liberty 400 to offer a true set-it-and-forget-it experience, even in a cordless format.
Winner: Dolphin Liberty 400
With advanced connectivity, scheduling, and autonomous retrieval features, the Liberty 400 delivers a significantly smarter and more hands-off cleaning experience.
Quick Rundown Of Dolphin Liberty 200

Quick Rundown Of Dolphin Liberty 400

Conclusion
Choose the Dolphin Liberty 200 if you want a simple, cost-effective cordless pool cleaner for routine floor cleaning in small to medium pools. It’s best for homeowners who prioritize straightforward operation and don’t need smart features or waterline scrubbing.
Choose the Dolphin Liberty 400 if you want a powerful, intelligent cordless solution with app-based scheduling, full wall and waterline cleaning, and energy-saving automation like Eco Mode. It’s ideal for users who want minimal involvement and maximum cleaning efficiency with modern smart-home compatibility.
Overall Winner: Dolphin Liberty 400
With better coverage, smart features, and intuitive operation enhancements, the Dolphin Liberty 400 stands out as the more capable and future-proof cordless robotic cleaner in the Liberty series. For those seeking more than just simplicity, it delivers a truly intelligent and complete pool maintenance experience.