The main differences between the X50 Master and the X50 Ultra lie in suction power, advanced cleaning features, and base station capabilities.

- Suction Power: The X50 Ultra offers a higher suction power of 20,000 Pa compared to the X50 Master’s 12,000 Pa.
- Cleaning Technology: The X50 Ultra includes advanced features such as bionic mechanical arms that extend for deep edge cleaning, UV sterilization, hot water cleaning up to 80°C, a descaling module, self-cleaning washboard, and hot air drying for mop pads. The X50 Master lacks these features.
- Mop Technology: The X50 Ultra has MopExtend™ RoboSwing technology for extending the mop to clean edges, which the X50 Master does not have.
- Obstacle Handling: The X50 Ultra can clear obstacles up to 6 cm high and has height adjustment to clean under low spaces, while the X50 Master has less advanced obstacle handling.
- Base Station: The X50 Ultra’s base station includes more advanced self-maintenance functions such as automatic water refilling, draining, and detergent dispensing, which are more limited or absent in the X50 Master.
- Suction System and Brushes: The X50 Ultra features a TriCut anti-tangle brush and an advanced DuoBrush system, improving hair management and cleaning efficiency.

Both models share features like AI RGB + 3D structured light obstacle avoidance, multi-floor mapping, and similar battery and water tank capacities, but the X50 Ultra is the more premium model with enhanced cleaning power and smart maintenance capabilities.