I Have had a Samsung Galaxy Watch 6 for a few weeks (at Singapore)  and now it is causing a large blister type irriation and  swelling on skin on my wrist, right under the main body of watch. It is a new gadget and I do need to wear to monitor my heath stats heart rate etc.  after my recent  heart attack. 

I like my samsung wearable, but it is hurting when I develop blister burn marks on wrist. See pic. 

I did not have such reactions for other smart watch from other brands.

#Galaxy Watch6