Both TVs come with smart platforms that support popular streaming apps and voice control features. Samsung UA39EH5003R features a 39 Inch (99 cm) screen while Samsung UA40EH5000RLXL comes with 40 Inch (102 cm), which can make a noticeable difference depending on your room size and viewing distance. If you're comparing Samsung UA39EH5003R and Samsung UA40EH5000RLXL, both models come with modern features and are designed to deliver a solid viewing experience across different use cases. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. Both TVs provide decent motion handling, making them suitable for everyday viewing including sports and action content. Both models support 1920 x 1080 resolution, ensuring sharp picture quality with detailed visuals for movies, shows, and gaming. From a practical standpoint, both options provide a reliable viewing experience for most users. Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience.

Verdict: Choosing between Samsung UA39EH5003R and Samsung UA40EH5000RLXL depends on your usage, whether you prioritize display quality, smoother motion, or smart features.