I've received, as a gift, a galaxy smart watch 42 mm. I love it, I'm wearing it all the time, but is the second time I'm getting a nasty rash on my wrist. First time was even worse, on my left hand wrist, but I didn't complain and I started to wear the watch on my right hand wrist, and the rash appeared. I'm afraid to wear the watch because of this. Never had problems with other watches.