A:Answer Comparatively, the QM8K does have a higher brightness, more advanced local dimming, and more realistic colors. The QM7K is a more budget-friendly option that is still a very capable mid-range TV, offering similar smart and gaming features and a wider selection of screen sizes. Both series deliver exceptional contrast and brightness within their class for dynamic performance in daytime or nighttime viewing. For detailed information, many TV review websites commonly publish performance measurements using their test methods. Hope this helps! Thank you, TCL Customer support
