We are going to label this under "rumint" for now because it seems unbelievable. Supposedly, the Chinese OEM Vivo is developing a new smartphone that will be a mere 3.8mm thick. To put that in perspective, that is half the thickness of the 7.6mm iPhone 5S! We've included what are supposedly leaked images of the phone's profile (above, and in the thread below), but these could obviously be straight up fakes. While we don't find it hard to believe that devices this thin will be coming in the future, it seems unlikely they will come as soon as next year, which is what this report suggests. What do you think?