https://www.sammobile.com/2017/11/08/galaxy-c9-pro-now-receiving-android-7-1-1-nougat-update-india/
Galaxy C9 Pro now receiving Android 7.1.1 Nougat update in India - SamMobile - SamMobile
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https://www.corning.com/cn/zh/archived-pages/en/products-with-gorilla-glass/smartphones/samsung/samsung-c9-pro.html
Samsung Galaxy C9 Pro | Samsung | Corning Gorilla Glass
samsung galaxy c9 procorninggorillaglass