There is a difference in screen size (46 Inch (117 cm) vs 43 Inch (109.22 cm)), and a larger screen generally provides a more immersive viewing experience. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. Philips 46PFL6605-98 and Sansui S40P28F offer different motion rates (100 Hz vs 60 Hz), which can impact smoothness during fast-moving scenes like sports and gaming. Philips 46PFL6605-98 and Sansui S40P28F are well-equipped smart TVs that aim to provide a balance of picture quality, performance, and smart capabilities. Both TVs come with smart platforms that support popular streaming apps and voice control features. Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience. Overall, both models are capable choices in their segment, offering a balance between performance, features, and usability. Both models support 1920 x 1080 resolution, ensuring sharp picture quality with detailed visuals for movies, shows, and gaming.

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