I tried to read through quite a bit of responses on here and only those that have explained the “burn” feeling such as myself, aren’t kidding.
As a random bit of scientific, “process of elimination”… those that have had the feeling of some sort of burn, what color is your hair and how fair complected are you?
I have worn an Apple Watch since the Series 2 (every series owned has been aluminum) and have never experienced this feeling beneath the wrist. Now, before someone says, “Maybe you’re allergic to titanium!?” The answer is no. I have zero allergies to most known elements (except maybe plutonium :insert nerdy radioactive joke here
I personally feel as though this is a “flash burn” (a burn caused by intense light) or basically a concentrated sunburn by the beams that monitor your BP, Heart rate, etc.
Not sure about the frequency and strength of pulses in the pervious series in comparison to the much newer models with updated firmwares and possibly stronger lights, but this is what my wrist looks like currently. Please keep in mind, I CONSTANTLY wear my Apple Watch Ultra (Ultra Orange Alpine Band) since purchased, only take it off to top off the charge and to charge it while I shower (this negates the possibility of irritants between the skin and the ceramic and sapphire crystal back) I also make sure that my wrist is completely dry before putting the Watch back on.
Additionally, I know many have mentioned hand wash being the culprit and I can also remove this from the possible causes as I never get the watch wet when washing my hands (When I wash my hands, I don’t make it a habit of washing my wrists also; I’m not a surgeon 🤦♂️)
I’m a new member so I’ll do my best to keep up-to-date on this particular thread as I am very curious as to why this is happening.
I have turned off all the monitoring sensors (12/27/2022 @ 10:45pm) to see if this helps, but I will continue to wear the watch as I normally do to rule certain possible irritants out.