Hi-res relates to anything above 16/44, thus 24/48 is classed as high-res. (24/48 is commonly used in most studios with only a few going up to 24/96)Does not support hires playback on Android Devices.
Subscribed to the Amazon Music HD service expecting to enjoy hires music on my Samsung Note 10+ with a hires USB DAC. Upon streaming a few Hires tracks I noticed the app was reading the capabilities of my phones internal DAC for the speakers rather than the USB DAC that is the current audio device.
I emailed Amazon music's customer support and was told promptly that it is not possible to play Hires content on my device.
Looking into this further it says on the Amazon Music site under the section 'Who can get Hires' that all recent Android devices will play at up to 24 bit 48 KHz. This is not Hires, yet Hires capabilities are clearly advertised for the Android app on the Play Store. This false advertising unless we are now considering 48 KHz Hires.
I should add that Hires support up to 192 KHz is available for recent iOS devices using a USB DAC, so why not Android? It uses the same Universal Audio 2.0 standard as iOS and windows, and furthermore, why advertise the app as Hires capable on this platform?
I unsubscibed one hour later.