Intex LED-40FHD10-VM and Intex LED-3900 are two competitive smart TVs offering a mix of display performance, smart features, and overall value for different types of users. Both TVs come with smart platforms that support popular streaming apps and voice control features. Both TVs provide decent motion handling, making them suitable for everyday viewing including sports and action content. Intex LED-40FHD10-VM features a 40 Inch (102 cm) screen while Intex LED-3900 comes with 39 Inch (99 cm), which can make a noticeable difference depending on your room size and viewing distance. In general, both TVs cater to modern entertainment needs, including streaming, gaming, and everyday viewing. Both models support 1920 x 1080 resolution, ensuring sharp picture quality with detailed visuals for movies, shows, and gaming. Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions.

Verdict: Choosing between Intex LED-40FHD10-VM and Intex LED-3900 depends on your usage, whether you prioritize display quality, smoother motion, or smart features.