Hi. Just wondering if anyone ever solved this ? I have the same issue with no alerts etc set-up. No other changes to screen etc just a short vibration.
Same here, at least 1 or 2 per day. I don't have any alarms, notifications, calls, text, etc set. However, my screen does not light up - vibration only.
Annoyingly this has just started happening to me in the early hours of the morning when I'm sleeping! And I have vibrate switched off overnight! Very annoying.
I experience this as well. Completely random as far as I can tell. Nothing on the display - screen stays dark. Notifications turned off and no other alerts set. FW: 6.90 on Vivoactive 4