The new Apple Watch Ultra is burning my skin as well and it's gotten quite severe with a red welt and a black sore that appearing… I will be seeking a full refund maybe with damages also, this is horrible… And the coup de grace is that when you're in sleep mode Focus and do not disturb and your battery goes low at 3 AM in the morning the watch decides it's a higher priority to wake you up to tell you you have a low battery then let you have a good night sleep these two things are making my thousand dollar watch Untenable and unusable