I got the Galaxy Active 2 watch one week ago. I started noticing pains in my arm and hand. The pains would go all the way up my forearm. I took the watch off and did not wear it the next day. There was no pain. I put the watch on this morning and about 15 minutes into wearing the watch my arm is back hurting. I have switched arms to see if it happens to the other arm.
Thank you for reaching out. I would be happy to look into this further for you. Can I please have your full model number and serial number/IMEI in a private message: http://bit.ly/2JH2rq2