Moto g4 launch in may 2016.and sound quallity is very good.Motog4 plus easy to use.and oprating system android 6.0.1Screen:5.5-inch Full HD display with Corning Gorilla Glass 3.Processors: Snapdragon 617 1.5 GHz octa-core processorRAM & ROM: 3GB RAM & 32GBBattery: 3, 000 mAhCamera: 16MP rear camera+ 5MP front camera and its price:P14999 and I am also use this moto g4 plus available in 2 color black and white.