The ASUS ZenFone 5 series of smartphones was made official at the Mobile World Congress (MWC) 2018 tech trade show that was held in February this year. The Taiwanese company could be working on ZenFone 6 series that may go official at the upcoming MWC event in February 2019. Fresh photos of the ZenFone 6 smartphone have appeared today reveal that it will be arriving with an in-display camera and a rear-mounted triple camera unit. In the first image, the ZenFone 6 prototype is placed beside the ZenFone 5Z . Compared to the ZenFone 5Z, the ZenFone 6 appears to be sporting a notch-less display surrounded by slimmer bezels. An in-screen camera is situated on the top-left corner of its display. The bottom edge of the ZenFone 6 protype has a 3.5mm audio jack, a USB-C and an external speaker grille. In the second image, the in-display camera can be seen at the top-right corner of the screen of the ZenFone 6 prototype. There is another image showing another p...