Both models support 1366 x 768 resolution, ensuring sharp picture quality with detailed visuals for movies, shows, and gaming. Audio output differs between the two (5 W + 5 W vs 2 X 5 W), which can influence overall sound clarity and loudness. TCL 32S351-CA and TCL 32RS530K 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. Overall, both models are capable choices in their segment, offering a balance between performance, features, and usability. Both TVs come in similar screen sizes, making them suitable for comparable viewing setups and room environments. Both TVs provide decent motion handling, making them suitable for everyday viewing including sports and action content. Both TVs come with smart platforms that support popular streaming apps and voice control features.

Verdict: Choosing between TCL 32S351-CA and TCL 32RS530K depends on your usage, whether you prioritize display quality, smoother motion, or smart features.