OPPO reinvents the notch for its F9 Pro, F9 smartphones

(G.N.S) DT.09 While the Essential Phone, back in March 2017, may have introduced us to the concept of a notch, the iPhone X popularized it as a mainstay.And OPPO, which recently wowed us with its all-screen motorized marvel Find X, is now reinventing the notch for its upcoming smartphones, the OPPO F9 and OPPO F9