Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience. Philips 42PFL6977 and Philips 43PUT7391-V7 are well-equipped smart TVs that aim to provide a balance of picture quality, performance, and smart capabilities. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. Both TVs come with smart platforms that support popular streaming apps and voice control features. From a practical standpoint, both options provide a reliable viewing experience for most users. Philips 42PFL6977 and Philips 43PUT7391-V7 differ in resolution (1920 x 1080 vs 4K 3840 x 2160), which can affect overall clarity and sharpness of the display. Both TVs provide decent motion handling, making them suitable for everyday viewing including sports and action content. Philips 42PFL6977 features a 42 Inch (107 cm) screen while Philips 43PUT7391-V7 comes with 43 Inch (109.22 cm), which can make a noticeable difference depending on your room size and viewing distance.

Verdict: Choosing between Philips 42PFL6977 and Philips 43PUT7391-V7 depends on your usage, whether you prioritize display quality, smoother motion, or smart features.