Samsung Galaxy S3 i9305 or / and i9300
Android 4.4.4 KTU84P
Because even the datasheet for the Wolfson (now Cirrus) WM1811A states that it is capable of 24-bit 96kHz sampling rate, so i believe this popular phone should have Hi-Res audio enabled in Poweramp.
The datasheet is HERE for @maxmp to look through.