There is a difference in screen size (55 Inch (139 cm) vs 58 Inch (147 cm)), and a larger screen generally provides a more immersive viewing experience. Insignia NS-55F301NA22 and TCL 58S455-CA differ in resolution (4K 3840 x 2160 vs UHD), which can affect overall clarity and sharpness of the display. 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. Insignia NS-55F301NA22 and TCL 58S455-CA are well-equipped smart TVs that aim to provide a balance of picture quality, performance, and smart capabilities. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. Both TVs provide decent motion handling, making them suitable for everyday viewing including sports and action content. Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience.

Verdict: Choosing between Insignia NS-55F301NA22 and TCL 58S455-CA depends on your usage, whether you prioritize display quality, smoother motion, or smart features.