Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. Both models support 4K 3840 x 2160 resolution, ensuring sharp picture quality with detailed visuals for movies, shows, and gaming. There is a difference in screen size (49 Inch (124.46 cm) vs 50 Inch (126 cm)), and a larger screen generally provides a more immersive viewing experience. Panasonic TH-49GX655DX and Samsung HG50AT670UJ are two competitive smart TVs offering a mix of display performance, smart features, and overall value for different types of users. Both TVs come with smart platforms that support popular streaming apps and voice control features. Panasonic TH-49GX655DX and Samsung HG50AT670UJ offer different motion rates (60 Hz vs 100 Hz), which can impact smoothness during fast-moving scenes like sports and gaming. Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience. In general, both TVs cater to modern entertainment needs, including streaming, gaming, and everyday viewing.

Verdict: Choosing between Panasonic TH-49GX655DX and Samsung HG50AT670UJ depends on your usage, whether you prioritize display quality, smoother motion, or smart features.