How do I test if my Coocaa TV is a real 4K Ultra HD TV?
One of the most common way to test if your TV comes with 4K display resolution is to play a 4K ultra HD video or get a 4K content to answer the question "How do I test if my TV is a real 4K Ultra HD TV?" To do this, on YouTube go to the settings and change the streaming resolution to 2160 for 4k Ultra HD content. However, this is less convincing for me. Please refer to this post for complete information https://www.coocaa.online/2020/06/how-do-i-test-if-my-tv-is-real-4k-ultra.html