Both models support 4K 3840 x 2160 resolution, ensuring sharp picture quality with detailed visuals for movies, shows, and gaming. Overall, both models are capable choices in their segment, offering a balance between performance, features, and usability. Both TVs come with smart platforms that support popular streaming apps and voice control features. If you're comparing TCL 65C728 and Haier LE65K7700HQGA, both models come with modern features and are designed to deliver a solid viewing experience across different use cases. TCL 65C728 and Haier LE65K7700HQGA offer different motion rates (120 Hz vs 60 Hz), which can impact smoothness during fast-moving scenes like sports and gaming. Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience. Both TVs come in similar screen sizes, making them suitable for comparable viewing setups and room environments. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions.

Verdict: Choosing between TCL 65C728 and Haier LE65K7700HQGA depends on your usage, whether you prioritize display quality, smoother motion, or smart features.