https://www.cnet.com/news/revealed-how-the-vivo-nex-crazy-pop-up-camera-actually-works/

Phone manufacturers are going to incredible lengths to maximize the size of their screen -- and the Vivo Nex is the new poster child with its motorized pop-up selfie camera. 

We just unboxed this phone, but MyFixGuide has actually already torn it apart, revealing for the first time how that mechanism actually works. If you love gadgets, it's a sight to behold: