Sound system good it have a moto speaker with moto modes
Hardware is nougate 7.1.1 andriod is easy to use with comfortable smooth screen
Is dark black colour made him shine is phone is fashionable
Moto z back is made from metal in back and from side of screen and it is water proof
Value of money is 24, 999 in this money u will get moto modes are speacker, camera with extra zoom
If you want this things in buy moto z