It wasn't clear the original post was a joke. Now it is.
I wasn't meaning to be disingenuous, started out by saying 'Imagine it'.
The Apple Watch doesn't have a scanner or a camera. If NFC was used, then it's not scanning, but rather tapping.
My mistake. Will correct
So, what is this thread really about? About using Bitcoin with the Apple Watch? Or about health features of the Apple Watch? If it's the latter, then thread should be in the Off-topic section.
I'm working on something that would allow the watch to use bitcoin. The second part of the post does not have to do with bitcoin, its about the possibilities of the heart rate monitor. I'm not pumping the product, just concerned about the possible data collection of health information. (Can't confirm that this is even a problem but I assumed it was the case and made a hypothetical scenario for abuse) I'm curious if anyone else has made the same observation about the heart rate monitor and has concerns with the abuse of data collection.
May be you sent using NFC services from your iwatch ? This is quite amazing that you can do everything just with iwatch. 
If your iwatch came with NFC function. 
If your iwatch came with NFC function. http://i.imgur.com/YW3gkrO.png
