I wore an Apple Watch for three nights (only at night) to monitor my heart rate after a Covid booster started causing me a lot of trouble when I tried to sleep and eventually sent me to the ER. The first night I noticed some pain in my wrist. By the third night I had to take the Apple Watch off and never wore it again. That was back in December of 2021. I visited my doctor again this weekend because that wrist has been so bad it's often hard to use. Doctors have found no other reason for the pain and no physical issues. The, only, possible cause at this point is the Apple Watch.
There are a very large number of people reporting the same issue.
I've filed a letter with California's Attorney General. A friend gave me this link about wireless health issues...
Environmental Health Trust