In the realm of high-end robotic pool cleaners, few names inspire as much confidence and reliability as Maytronics. With years of industry leadership and engineering precision, the brand’s Dolphin M600 vs Dolphin M550 represent two of the most capable models designed for serious pool owners who demand premium performance, intelligent features, and low-maintenance automation.
Though these two models appear similar at first glance, there are subtle yet important differences that make one more suitable than the other depending on your pool size, desired level of automation, and user preferences. This in-depth comparison between the Dolphin M600 and Dolphin M550 outlines every crucial specification and functional advantage, providing a detailed evaluation of their differences in smart features, filtration systems, cleaning power, and handling experience.
Contents
Differences Between Dolphin M600 vs Dolphin M550
Pool Compatibility and Cleaning Coverage
The Dolphin M600 is optimized for in-ground pools up to 50 feet in length and provides exceptional cleaning across the floor, walls, and waterline. Its advanced SmartNav 3.0™ technology enables the unit to scan the pool and develop an intelligent cleaning path in real-time, adapting instantly to any unique shapes, ledges, or steps.
The Dolphin M550 is also rated for in-ground pools up to 50 feet, and it delivers similar cleaning coverage. However, it relies on SmartNav 2.0™, which uses an adaptive algorithm but lacks real-time adjustments. While efficient in rectangular or oval pools, the M550 may require more overlapping passes in uniquely shaped or obstacle-rich pools.
Winner: Dolphin M600
With real-time mapping and route optimization, the M600 ensures superior cleaning efficiency and total coverage, especially in pools with complex geometry.
Filtration Capacity and Debris Handling
The M600 comes with an extra-large dual-layer filter basket, which is accessible from the top for easy cleaning. Its dual-stage design separates fine particles from coarse debris, maximizing filtration efficiency and maintaining consistent suction throughout the cleaning cycle. The sheer capacity allows for longer sessions with fewer interruptions to clean the filter.
The M550 features a multi-layer filtration basket that integrates fine and ultra-fine filtration in one unit. While highly effective at trapping small particles, it does not separate debris into compartments, making it slightly less efficient when dealing with heavy leaf loads or large particulate matter.
Winner: Dolphin M600
The dual-layer structure provides cleaner water, reduces clogging, and requires less frequent filter maintenance, particularly in pools surrounded by foliage.
Brushes and Scrubbing Performance
Both units are equipped with dual active brushes that rotate at higher speeds than the unit’s movement, ensuring strong contact and effective scrubbing of floor, walls, and waterline surfaces.
The M600 positions its brushes at the front and rear of the unit, ensuring continuous agitation regardless of travel direction. This allows the M600 to maintain maximum scrubbing coverage throughout the entire cleaning cycle.
The M550, while featuring dual active brushes as well, may have slightly less consistent scrubbing during transitional movement due to its forward-focused layout.
Winner: Dolphin M600
Its dual-ended scrubbing system ensures full-contact cleaning in both forward and reverse motion, leading to more efficient removal of algae and grime.
Waterline Cleaning Performance
The Dolphin M600 excels in waterline cleaning, combining smart navigation, buoyancy control, and powerful traction to climb and maintain brush contact at the surface. With the support of Lift-Out Assist, it effortlessly transitions up walls and completes full waterline scrubbing during every cycle.
The M550 also supports waterline cleaning, and it does a commendable job. However, it lacks Lift-Out Assist and may not reach the same consistency at the tile line during all operating conditions.
Winner: Dolphin M600
Enhanced vertical reach and stable waterline adhesion make it the more reliable performer in removing oily residues and scum at the surface.
Smart Features and App Integration
The M600 is fully integrated with the MyDolphin Plus App, supporting WiFi-based control, remote scheduling, customizable cleaning modes, and real-time diagnostics. Pro Mode unlocks advanced settings like manual navigation, brush speed control, and system performance tracking. Users can monitor and operate the cleaner from anywhere via smartphone.
The M550 is also compatible with the MyDolphin Plus App, but with limited functionality. It supports basic scheduling, cleaning mode selection, and status alerts, but it lacks Pro Mode and water temperature feedback.
Winner: Dolphin M600
The extended app capabilities and cloud-based control provide a smarter and more user-centric experience.
Handling, Weight, and User Convenience
Weighing in at 24.6 lbs, the M600 is slightly heavier than the 22-pound M550. However, the Lift-Out Assist feature allows the M600 to drive to the pool wall and eject water for easier removal. It also includes a premium transport caddy, enhancing mobility and keeping the unit and accessories organized when not in use.
The M550, while easier to carry due to its lighter frame, lacks Lift-Out Assist and does not include a caddy. Users will need to manually retrieve and handle the unit, which can be cumbersome when waterlogged.
Winner: Dolphin M600
The combination of automated retrieval and storage convenience make it more ergonomic and less labor-intensive.
Cable Design and Tangle Prevention
Both models use a 60-foot swivel cable, preventing tangling as the unit moves across the pool. This allows the robot to freely navigate in any direction without interruption.
While the swivel cable on both models is identical in build and function, the M600’s advanced SmartNav 3.0 system makes more efficient use of the cable by planning optimized routes that avoid overlap and redundant loops.
Winner: Dolphin M600
Slightly more efficient cable usage due to smarter navigation algorithms enhances long-term reliability.
Quick Rundown Of Dolphin M600
Quick Rundown Of Dolphin M550
Conclusion
Choose Dolphin M550 if you are seeking a high-performance robotic cleaner for a standard in-ground pool and prefer a lightweight, app-compatible solution with reliable wall and floor cleaning. It’s ideal for homeowners who want a smart device without the need for advanced configuration or automated retrieval features.
Choose Dolphin M600 if you want the most powerful, intelligent, and user-friendly robotic pool cleaner available. With its dual active scrubbing, dual-layer filtration, superior navigation, Lift-Out Assist, Pro Mode app control, and 3-year warranty, it delivers a fully automated, premium pool maintenance experience.
Overall Winner: Dolphin M600
With cutting-edge features, better filtration, smarter navigation, and enhanced user convenience, the Dolphin M600 clearly stands out as the more advanced and future-ready robotic pool cleaner. For pool owners who demand the very best, it remains the undisputed champion in the high-end category.