The latest teaser video released by Vivo shows off the slick metallic back of the Vivo 2019 smartphone, which does not appear to feature any rear cams or buttons and ports on the edges. To top things off, Ben Geskin obtained exclusives design info from Vivo and put together a render depicting the back as well as the front of the handheld.
https://www.notebookcheck.net/Vivo-teases-Apex-2019-smartphone-with-no-buttons-and-ports.397276.0.html