The Chinese manufacturer presents the Oppo A31, a mid-range smartphone that brings nothing very original, but which has the merit of being simple and elegant. Its relatively low price (€ 150) also makes an interesting alternative, especially as it should be arriving in some European countries. While we are still waiting for new models R7 and R1C the Chinese manufacturer, Oppo is to unveil a new mid-range model with the name of A31. The Oppo A31 is a very elegant device. Finesse (8 mm) and two glass panes, associated with its design but understated classes are indeed this phone a beautiful