QLED is a newer technology that offers better picture quality than 4K UHD. QLED uses quantum dots to produce light, which results in a brighter and more vibrant image. Additionally, QLED TVs have a higher contrast ratio, which means that they can display deeper blacks and brighter whites. Finally, QLED TVs offer a wider color gamut than 4K UHD TVs, meaning that they can display more colors with greater accuracy.