Google shows it is a thing.
Read over https://www.google.com/search?q=Samsung+Gear+S2+Device+back+shattered
Has anyone had their Gear watch just shatter on the back of the device for no apparent reason? I had this happen. I continued to wear the watch because at the time it was still working. But guess what? It stopped working. I sent it in for repairs and they returned it, still broken because I was informed that I voided the warranty because of water damage. The water came from my sweat, therefore, no replacement. I even sent it to the corporate office. I received a very nice email with the same language. I voided the warranty due to water damage. SWEAT. Guess its nice to know that these devices are not supposed to be worn because most people I know sweat when they work out. I'm totally disappointed in Samsung.