Videocon VMS40QX19SA features a 40 Inch (102 cm) screen while Haier 43S800QT comes with 43 Inch (109.22 cm), which can make a noticeable difference depending on your room size and viewing distance. Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience. Videocon VMS40QX19SA and Haier 43S800QT differ in resolution (3840 x 2160 (4K) vs 4K 3840 x 2160), 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. Videocon VMS40QX19SA and Haier 43S800QT offer different motion rates (NA vs 60 Hz), which can impact smoothness during fast-moving scenes like sports and gaming. Overall, both models are capable choices in their segment, offering a balance between performance, features, and usability. Videocon VMS40QX19SA and Haier 43S800QT are two competitive smart TVs offering a mix of display performance, smart features, and overall value for different types of users. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions.

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