Well I can confirm that my tattoos, albeit having a lot of negative skin space in them, do interfere with my Apple Watch. The heart rate sensor doesn't register, and I had to disable wrist detection and turn off the PIN code. I'm not too worried, as notifications still work, and Apple Pay isn't used in Australia yet (I'll always have my iPhone with me anyway I guess).
The only downside is that to turn the PIN code off, I had to remove my MS Exchange account off my iPhone (which I use purely for my work calendar). Just means I have to find a way to sync my Exchange calendar to my personal iCloud or GMail calendar somehow, which I'll look into.
Overall, I don't regret my purchase, just figured I'd let people know my experience with it!
The only downside is that to turn the PIN code off, I had to remove my MS Exchange account off my iPhone (which I use purely for my work calendar). Just means I have to find a way to sync my Exchange calendar to my personal iCloud or GMail calendar somehow, which I'll look into.
Overall, I don't regret my purchase, just figured I'd let people know my experience with it!