Joys and perils of dual-screen phones, or, do they really take the best selfies?

Let's face it, dual-screen phones like the Nubia X or the Vivo NEX Dual Display edition are unique when it comes to design. There have been efforts to tack an extra small screen somewhere on a phone before, but a fully functional second display on the back? That has been in the realm of concept renders and wishful thinking until now.

Move aside, punch-hole screens and notches, dual-screen phones look unapologetically unorthodox, and sound like finding the Holy Grail on the neverending quest for "all-screen" handsets! 

What ...

from PhoneArena http://bit.ly/2W2ss6D

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