I've ran some apps to show me information about my TV (this model: TCL 75c725 , which has Android 11) , and for some reason all of them say it's 1080p resolution (1920x1080).
How could that be?
Maybe it changes resolution based on content? I wonder then, what triggers it to switch? I don't think there is an API for developers to do it, no?
Memory is expensive, and 4K graphics takes a lot of memory and processing to play with vs 1080p, so all Android TVs to 1080p or 720p graphics, while the VIDEO is played at full resolution.
Maybe apps not meant for Android TV. For example, android TV interface is rendered at 1080p resolution, and maybe that's what they detect
I have an Infinix X1 32 inch Android TV, running Android 9. On the Box & on the website it is shown to be 1366x768 display (HD Ready). I downloaded some system info & display info apps, they show it's 1280x720.
My speculation is Android TV OS itself support very limited resolutions main being 1280x720 & 1920x1080. That tells why every other app shows wrong information about the hardware. They might fix this problem in future versions. It creates blurry icons on screen if looked from close distance.
What kind of HDMI cable are you using?
Android TV does not currently support 4k for UI. Android TV 12 should support it .