You can now watch YouTube in HDR on certain Android handsets. HDR (high dynamic range) is a technology that makes for much greater differences between the light and dark part of the picture. It adds a greater sense of depth to the picture, and makes it seem more lifelike.
However, YouTube HDR is only available on some Android devices initially, not iPhones.
The compatible handsets are the Samsung Galaxy S8, Samsung Galaxy Note 8, Sony Xperia XZ Premium and the LG V30.
The Google Pixel and Pixel XL are also supported.
If you have a compatible phone, you can watch HDR YouTube videos at up to a 1,440p resolution and at 60 frames per second.
Google (which owns YouTube) already offers YouTube HDR through TV apps, but this is the first time it's come to mobile phones.
There's no word on when the feature will come to iOS devices.