The vivo X30 is expected to arrive next month, and we finally have a first look at the phone's back, thanks to an official teaser. The 30-second video reveals a vertical camera setup in the upper left corner with a rectangular aperture beside it and a neat gradient. The most interesting bit is the frame of a camera, which confirms 16mm to 135mm focal length and F/1.8 to F/3.0 apertures. Those confirm the X30 will come with an ultrawide angla camera and a long F/3.0 telephoto. The latter will likely use a periscope design, that ends in the aforementioned rectangular...