Note - new gen 2 Oura ring EMF levels have been tested - watch this for more - https://youtu.be/3yqz8p1QiTM
The Oura Ring wearable has a neat 'airplane' mode.
If you are concerned about nnEMF and radiation, then check out the difference between airplane mode and non-airplane mode on the Oura ring.
For a full review on the ring, please see - https://aferg.co/ourareview
To buy the Ring head to https://aferg.co/ourar3349f