all x compacts have this ****ty loud vibration motor. if you press rapidly buttons with vibration the motor gets louder and loder like a bee!
additionally the letter "P" on the keyboard is often not reacting when you are not pressing centered from top the letter on the keyboard. it will not react when you try to hit the letter a bit through the curved glass from the right side. is has the same behaviour on all keyboards so far. not acceptable. s7, z3c, z5c has a much better touch sensitivity. personally, these are the reasons for giving it back to store.