Both TVs come with smart platforms that support popular streaming apps and voice control features. Overall, both models are capable choices in their segment, offering a balance between performance, features, and usability. Both models support 4K 3840 x 2160 resolution, ensuring sharp picture quality with detailed visuals for movies, shows, and gaming. Panasonic TH-55GX655DX and Samsung QN55QN9DAAFXZC offer different motion rates (60 Hz vs 120 Hz), which can impact smoothness during fast-moving scenes like sports and gaming. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. Both TVs come in similar screen sizes, making them suitable for comparable viewing setups and room environments. Panasonic TH-55GX655DX and Samsung QN55QN9DAAFXZC are well-equipped smart TVs that aim to provide a balance of picture quality, performance, and smart capabilities. Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience.

Verdict: Choosing between Panasonic TH-55GX655DX and Samsung QN55QN9DAAFXZC depends on your usage, whether you prioritize display quality, smoother motion, or smart features.