We had the opportunity to interview vivo about the NEX phones with a focus on their pop-up camera and the great notch debate. That aside, we also talked about smartphones in general and where they are headed in 2019 - foldable displays, punch hole cameras, in-display fingerprint readers, 5G and more. A common thread in all these answers is that innovation for innovation's sake doesn't work. Instead vivo considered multiple options and picked the one that provided the best balance of user experience and aesthetics. The engineering team considered various different positions and...