YouTube has finally added 4K HDR playback support for Android devices. Try changing the video quality to 2160p for watching 4K content on YouTube. This is a server-side update and is available to all users across the globe.
There are not many phones with 4K displays. You can set the video quality to 2160p even if your phone doesn’t come with a 4K display. I tested it on OnePlus 6T and videos at 2160p noticeably sharper.
Also see: YouTube Vanced
To change the video quality to 4K, click on the three dots menu icon on the top right corner of the video. Now Select Quality and you should be able to see 2160p or 2160p60 HDR. If you don’t see 2160p, the video wasn’t uploaded in 4K.
YouTube added 4K playback support in iOS app last year.
Also see: YouTube to MP3 320kbps
