Both my wife and I suddenly noticed a ‘blister’ on our vivosmart 4 watches. It is located just above the display opposite to the charging contacts.
Are more users experiencing this? The watch seems to work ok still.
I wondered this too, but I checked the manual and it says it can function up to 60 degrees C so seems unlikely, unless maybe the watch was in the sun for a long time?
I don't think heat is a factor, in mine happened during winter, heating was set at 18 C.