I'm not talking bluetooth or anything, not afraid of that. I mean maybe it is the band itself? I have the Sport band and I'm not in pain, nothing like that, just a little discomfort maybe on the left and right of my wrist. Little sore. I loosened it today, so we will see how that works. I think it is the band really. The two bones on the left and right of my wrist feel a little sore about midway through the day. Anyone else? Just have it too tight I hope? Just venting hoping someone else had the same experience and went away over time, I NEVER used to wear a watch before. BTW, I have had the watch for only 4 days.