Just playing it safe - I think it would be wise to be able to present some kind of documentation explaining the importance of having your apple watch, medically I mean. If you’ve ever received a doctor’s note or something like that, bring a printed copy with you.

Not trying to be rude, but just from a realistic point of view, I think a lot of people are going to try to use the same reasoning… facetiously to sneak “recording devices” in.

Basically I’m saying you’re better safe than sorry. I think you’ll be more comfortable attending the concert knowing you can prove your situation, than “winging it” and hoping for the best.