Foldable designs and 5G connectivity are widely expected to take center stage at MWC 2019 in Barcelona in just a few days, but while the mobile industry is definitely pinning its hopes on these two breakthroughs for a global market rebound, neither is yet a very mature or accessible technology. Believe it or not, Oppo may have something in the pipeline that we can all get behind right away, with pretty obvious real-world utility and strong game-changing potential.

The company, which is not extremely popular in the West despite ranking fifth overall in worldwide 2018 smartphone ...