After releasing Find 7 in 2014, until now Oppo has not yet issued the successor. The Find series from Oppo is known to be the flagship series of the Chinese brand.
In connection with the Oppo series smartphone, recently rumored to indicate that the company is preparing to issue a flagship smartphone from the series. That's after the company registered a brand named 'Oppo Find X'.
True successors of Oppo Find will be claimed as Find 9. The strong reason why the company will launch it as Find X, not Find 9 could be this smartphone will come with topnotch specs.
Still related to Oppo smartphone, recently an invitation to the company's event has been circulating in Weibo's age line. Written in the invitation the theme of the event is centered on 5G and 3D technology.
I do not know what 5G meant in the invitation, because when the handset say Oppo Find X released this year, probably not support 5G network technology. As for 3D technology, this could indicate the smartphone will come with 3D face recognition feature.
In addition, in connection with Oppo who has also filed a patent for fingerprint sensors on the screen, there is the possibility of this feature will be adopted by Find X. It's just that, since this information still smells of speculation, for clarity we'll see the progress.