Last month ZTE filed a patent for a smartphone with dual punch-hole cameras. And now, this Chinese phone maker has filed another patent for a smartphone rocking a slider design and two selfie cameras. The front glass of the handset itself doesn't house the selfie cameras, as they are revealed when you slide the screen down. Sliding it up uncovers what looks like a speaker grille. Perhaps room for some extra controls? Around the back, the phone has a dual camera setup placed vertically in the upper-left corner, with the flash located right below. There's also an oval-shaped fingerprint...