Sometimes my haptic is very strong and sometimes much less so. and i could swear it used to be smooth vibration and now it's choppy, like 3 separate buzzes almost, but that correlate with the speed at which I drag my finger down the screen. ?
I think you answered your own question
Sent from my XT1060
Personally I get 2 vibrations when I unlock regularly from active display and standard lockscreen, but 3 from active display if I move slowly
Sent from my XT1060