There is a difference in screen size (58 Inch (147 cm) vs 55 Inch (139 cm)), and a larger screen generally provides a more immersive viewing experience. Both TVs come with smart platforms that support popular streaming apps and voice control features. Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience. Both TVs provide decent motion handling, making them suitable for everyday viewing including sports and action content. In general, both TVs cater to modern entertainment needs, including streaming, gaming, and everyday viewing. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. Westinghouse WR58UX4019 and TCL 55S455-CA differ in resolution (4K 3840 x 2160 vs UHD), which can affect overall clarity and sharpness of the display. If you're comparing Westinghouse WR58UX4019 and TCL 55S455-CA, both models come with modern features and are designed to deliver a solid viewing experience across different use cases.

Verdict: Both models offer good value, and the better option depends on your specific requirements and viewing preferences.