I have a problem: when my phone is set to vibrate only and someone calls me while it's in my pocket, the vibrations simply fade out. Because of that, sometimes I don't Why Does My Phone Randomly Vibrate: iPhone + Android The phantom vibration effect is when you feel your phone vibrate even though it didn't. over 90% of people under 30 report feeling it, often because their brain is used to expecting Your smartphone is making you hallucinate. It's called phantom vibration syndrome yes, it's a real psychological phenomenon and studies in the past few years have found, when surveying college undergraduates, Do you experience a vibrating sensation in your legs? My Blissful Week as a 'Do Not Disturb' Maximalist WIRED