I've been getting blistering and a rash when wearing my Vivosmart 4, having to swap wrists regularly until the affected wrist heals, then swap back so the other wrist can heal.
It's on the side of my wrist and a little on top, but mainly under the QR code area.
I've tried loosening the strap until it slips around, not getting it wet etc, but nothing seems to help.
Is this a known issue? I like it other than this.