The vivo APEX 2019 is a hole-less concept phone and as such its purpose in life is to be cool. And it certainly fit the part, check out this video demo below. There are no buttons on this APEX phone, so it uses the Always-On Display to mark where the touch-sensitive side "buttons" are. Only the Power key has a little nub so you can feel it without looking, but it's not an actual button (just like on the HTC U12+). Most impressive, however, is the in-display fingerprint reader - it covers essentially the whole display. The setup starts at 1:30 and ends just seconds later, as it only...