On the other hand, some 720p display-sporting phones like the Redmi 3S Prime offer up to 1080p resolution. The Moto G5S Plus limits the resolution to 1440p. However, not all devices with Full HD displays seem to offer the option. In our testing, the option to stream 4K videos on mobile is present on some devices, mostly those with a resolution of 1080p or higher. Further Reading: Technically speaking, all of these video. ![]() Image: Compare video quality of 1080P resolution, 720P resolution and 480P resolution. In all: We've summarized an equation to explain the relation & difference of 480P, 720P, 1080P and 4K: 4K 4 x 1080P 9 x 720P 27 x 480P. ![]() That is changing now, as users have begun reporting on Reddit ( spotted by XDA-Developers) that the Android app is offering the option to stream videos at up to 4K resolution at 60fps on some devices, regardless of whether the device’s display resolution is that high. It has 8,294,400 pixels to keep graphic information. Fourteen years in and YouTube is still in full swing. ![]() A 4K video, with a frame rate of 30 fps (frames per second) that is 60 minutes long, can take up to 4 hours or more to finish high-resolution processing. However, the case on the mobile app has been different, since it restricts resolutions higher than that of the display. However, if your video is 4k, it will take Youtube longer to process it. As for why YouTube allows 4K video to be streamed to non-4K displays in the first place - I dont know. You arent actually looking at 4K resolution, youre looking at a 4K video downscaled to 1920x1080. For example, users on Full HD displays have been able to stream 4K videos or higher as the service downscales the video to be run on lower resolutions. The resolution is simply reduced to fit the display. ![]() YouTube has long allowed users to stream high-resolution videos on the desktop regardless of whether their display supports those resolutions.
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