Night and Day. With the Galaxy A6 (2018), Samsung brings a chic-looking, mid-range smartphone to the market, which scores major points with its 5.6-inch Super AMOLED display and two 16 MP cameras. In our review, the Android smartphone proves to be very capable, but it has a few weaknesses.
https://www.notebookcheck.net/Samsung-Galaxy-A6-2018-Smartphone-Review.313654.0.html
A8 (2018) is successor to A5 (2017) and A5 (2017) does have Usb-C connector