Both TVs come in similar screen sizes, making them suitable for comparable viewing setups and room environments. 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. From a practical standpoint, both options provide a reliable viewing experience for most users. TCL 65S434-CA and Haier H65P751UX offer different motion rates (120 Hz vs 60 Hz), which can impact smoothness during fast-moving scenes like sports and gaming. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. TCL 65S434-CA and Haier H65P751UX differ in resolution (UHD vs 4K 3840 x 2160), which can affect overall clarity and sharpness of the display. TCL 65S434-CA and Haier H65P751UX are two competitive smart TVs offering a mix of display performance, smart features, and overall value for different types of users.

Verdict: Both models offer good value, and the better option depends on your specific requirements and viewing preferences.