From time to time, smartphone manufacturers like to show off concept devices, and OnePlus is no exception. The company revealed the OnePlus Concept One earlier this year with electrochromic glass that ...

Chinese company Vivo is showing off a new smartphone prototype that features a unique color-changing glass back, one that dramatically shifts through different hues seemingly by magic. A video of the ...

Now that smartphones are mostly slabs of glass on the front and uniform surfaces on the back, what do you do to stand out from the pack? If you're Vivo, you make a phone with a color-changing glass on ...