Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience. There is a difference in screen size (51 Inch (129.54 cm) vs 50 Inch (126 cm)), and a larger screen generally provides a more immersive viewing experience. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. Samsung PS51F4900AR and LG 50PN4500 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. Overall, both models are capable choices in their segment, offering a balance between performance, features, and usability. Both models support 1024 x 768 resolution, ensuring sharp picture quality with detailed visuals for movies, shows, and gaming. Samsung PS51F4900AR and LG 50PN4500 offer different motion rates (60 Hz vs NA), which can impact smoothness during fast-moving scenes like sports and gaming.

Verdict: Choosing between Samsung PS51F4900AR and LG 50PN4500 depends on your usage, whether you prioritize display quality, smoother motion, or smart features.