Both TVs come with smart platforms that support popular streaming apps and voice control features. Intex LED-4001 features a 39 Inch (99 cm) screen while Haier LE40K6000B comes with 40 Inch (102 cm), which can make a noticeable difference depending on your room size and viewing distance. Intex LED-4001 and Haier LE40K6000B differ in resolution (1366 x 768 vs 1920 x 1080), which can affect overall clarity and sharpness of the display. Intex LED-4001 and Haier LE40K6000B offer different motion rates (NA vs 60 Hz), which can impact smoothness during fast-moving scenes like sports 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. Intex LED-4001 and Haier LE40K6000B are well-equipped smart TVs that aim to provide a balance of picture quality, performance, and smart capabilities. In general, both TVs cater to modern entertainment needs, including streaming, gaming, and everyday viewing.

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