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 come in similar screen sizes, making them suitable for comparable viewing setups and room environments. Both models support 1366 x 768 resolution, ensuring sharp picture quality with detailed visuals for movies, shows, and gaming. Both TVs provide decent motion handling, making them suitable for everyday viewing including sports and action content. Overall, both models are capable choices in their segment, offering a balance between performance, features, and usability. LG 24LM520S-WU and LG 24LJ4540-WU 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.

Verdict: Choosing between LG 24LM520S-WU and LG 24LJ4540-WU depends on your usage, whether you prioritize display quality, smoother motion, or smart features.