Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience. There is a difference in screen size (39 Inch (99 cm) vs 40 Inch (102 cm)), and a larger screen generally provides a more immersive viewing experience. Intex LED-4001 and Thomson 40FD2S13 offer different motion rates (NA vs 60 Hz), which can impact smoothness during fast-moving scenes like sports and gaming. Both TVs come with smart platforms that support popular streaming apps and voice control features. Intex LED-4001 and Thomson 40FD2S13 differ in resolution (1366 x 768 vs 1920 x 1080), which can affect overall clarity and sharpness of the display. If you're comparing Intex LED-4001 and Thomson 40FD2S13, both models come with modern features and are designed to deliver a solid viewing experience across different use cases. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. From a practical standpoint, both options provide a reliable viewing experience for most users.

Verdict: Choosing between Intex LED-4001 and Thomson 40FD2S13 depends on your usage, whether you prioritize display quality, smoother motion, or smart features.