Both TVs come with smart platforms that support popular streaming apps and voice control features. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. TCL 43S434 and Intex LED-SHV4036 are two competitive smart TVs offering a mix of display performance, smart features, and overall value for different types of users. Overall, both models are capable choices in their segment, offering a balance between performance, features, and usability. 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. TCL 43S434 and Intex LED-SHV4036 differ in resolution (UHD vs 1366 x 768), which can affect overall clarity and sharpness of the display. There is a difference in screen size (43 Inch (109.22 cm) vs 40 Inch (102 cm)), and a larger screen generally provides a more immersive viewing experience.

Verdict: Both TVs are strong contenders, and your final choice should depend on your preference for screen size, motion performance, and smart features.