MK2 sensors burning my hand

Hi there,

Since I got this Garmin watch (MK2) I turned all the sensors on all day and put the watch in my left hand.

I notice a red circle mark on my skin below the sensors that is really painful. I used to wear a Xiaomi Stratus watch and Apple watches on the same hand without any issue.

I am wondering if this is a sensor issue ? the big size of the watch or it is a particular issue with that one piece of watch that is not working well.

Anyone got the same "burning sign"?

David