Apple has recently posted a support article that tells Apple Watch owners how to wear their smartwatch the right way.

The document covers various topics about the Apple Watch, including the materials that make up the device and the Apple Watch bands, too. The Cupertino-based firm says that a lot of research and care go into the selection process, and that all of them meet existing regulations.
Apple further says that all materials that make contact with your skin have gone through detailed evaluation according to their specifications.
The support article also has a section on how owners should properly wear their Apple Watch. It explains that for the best results and for the features such as the heart sensor, Taptic Engine and Wrist Detect to work, the back of the smartwatch should always be in contact with the wearer’s skin.
Apple suggests tightening the bands during workout and loosening it afterwards.