Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. Skyworth 98SUE9580 features a 98 Inch (249 cm) screen while Skyworth 100SUE8600 comes with 100 Inch (254 cm), which can make a noticeable difference depending on your room size and viewing distance. Skyworth 98SUE9580 and Skyworth 100SUE8600 are well-equipped smart TVs that aim to provide a balance of picture quality, performance, and smart capabilities. Both models support 4K 3840 x 2160 resolution, ensuring sharp picture quality with detailed visuals for movies, shows, and gaming. Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience. Skyworth 98SUE9580 and Skyworth 100SUE8600 offer different motion rates (120 Hz vs 60 Hz), which can impact smoothness during fast-moving scenes like sports and gaming. In general, both TVs cater to modern entertainment needs, including streaming, gaming, and everyday viewing. Both TVs come with smart platforms that support popular streaming apps and voice control features.

Verdict: Choosing between Skyworth 98SUE9580 and Skyworth 100SUE8600 depends on your usage, whether you prioritize display quality, smoother motion, or smart features.