I know that the beep is gone, but if anyone can check this with me so that I can find out for sure. I have a 5s and when you hold down the button to bring siri up it vibrates and then vibrates again when you say the request after it types it out. On the 6s does it only do it after the request is made? mine doesn't seem to vibrate after you hold the button. I just got it replaced yesterday after the iOS bricked it randomly. Vibration is on and works with other functions well; texts, ring tones, and 3D TOUCH.