I recorded a video that shows my hand a week or so after my installation: https://www.youtube.com/watch?v=WeIqDlaatp0 https://www.youtube.com/watch?v=WeIqDlaatp

I recorded a video that shows my hand a week or so after my installation: https://www.youtube.com/watch?v=WeIqDlaatp0 https://www.youtube.com/watch?v=WeIqDlaatp0 This was an xNT NFC tag: https://dangerousthings.com/shop/xnt-ntag216-2x12mm-glass-tag/ https://dangerousthings.com/shop/xnt-ntag216-2x12mm-glass-ta... Turns out it wasn't installed too shallow, I just have thin and pale skin which makes it very visible. :) The scar did disappear completely. Still use it on my door locks and with a couple of apps on my phone. Not sure if the antenna coil on this person's NFC chip is larger or better orientated than mine, but one thing I'll say is that it isn't that easy to get a random phone to pick it up. It took me several tries to figure out where I had to put my hand, and a few weeks before I could quickly and reliably get it to scan on the first try. If I scan it with someone else's phone, it still takes several tries. The antenna on most phones isn't very large, and the antenna on the NFC chips are miniscule, so getting the right orientation and position isn't as easy as swiping an RFID or NFC badge.