Smartphone and tablet displays are only getting better, however not all mobile video software is capable of taking advantage of high-res content. For example, Android’s YouTube app gives users the option to display videos in either 360p or 720p, but this appears to be changing. People are reportedly starting to see playback options in 480p and 1080p resolutions.
Right now these viewing options are hit or miss, so Google is most likely testing them out. If you frequent YouTube from your mobile device and would like to check if these resolutions are available, tap the gear icon during playback and check what options are available. If you happen get lucky, feel free to let us know what device and Android version you’re using.
(via Android Police)