Overall, both models are capable choices in their segment, offering a balance between performance, features, and usability. There is a difference in screen size (42 Inch (107 cm) vs 43 Inch (109.22 cm)), and a larger screen generally provides a more immersive viewing experience. Philips 42PFL5556-V7 and Samsung HG43AJ670UKXXY are well-equipped smart TVs that aim to provide a balance of picture quality, performance, and smart capabilities. Both TVs provide decent motion handling, making them suitable for everyday viewing including sports and action content. Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience. Both TVs come with smart platforms that support popular streaming apps and voice control features. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. Philips 42PFL5556-V7 and Samsung HG43AJ670UKXXY differ in resolution (1920 x 1080 vs 4K 3840 x 2160), which can affect overall clarity and sharpness of the display.

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