Is the high pitch vibrator sound a defect or a "feature"?

A

AC Question

Hello.

Bought a nexus 5x today and i immediately noticed the sound it makes while having the vibrator active for typing and side buttons and stuff like that. You can't really hear it when holding the phone at an arms length so i could probably get used to it. What i wonder if is this sound is due to a defect or if its present on every 5x?