I haven't had the traditional NDE but I have been in two situations where I thought for sure I was going to die, one where I went unconscious, but no tunnel 'o light experience.
No problem with watches but I am extremely sensitive to cell phones or mobile phones. I " feel" them and can't stand to have a cell phone next to my ear. Since life necessitates having one I use a ear piece with a long cord or the speaker function on the phone. Two weeks I was reporting the deposition of a doctor who sat on the far end of the table away from me because he said the electrical field from my laptop was making him feel bad.