In order to use the new Youtube HDR function, you need on the one hand a smartphone that has an HDR display, on the other hand the latest Youtube app with the version 12.34.55 or higher. If you have already installed this version on your smartphone, check as follows:
Check app version of Youtube:
- Open the Youtube app on your smartphone
- Now tap on the symbol with the three dots in the upper right corner and then on "Settings"
- At the bottom you will see the item "About Youtube" - Tap on it and you will see the app version as penultimate entry
Should be here now 12:34:55 or higher, then you can use the new HDR feature in Youtube. This works great, for example, with the Samsung Galaxy S8 or the Galaxy Note 8.