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. Both TVs come with smart platforms that support popular streaming apps and voice control features. From a practical standpoint, both options provide a reliable viewing experience for most users. 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. Westinghouse WR58UX4019 and TCL 55S455-CA are two competitive smart TVs offering a mix of display performance, smart features, and overall value for different types of users. 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 offer adequate brightness levels suitable for most indoor lighting conditions.

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