OPPO has announced that it will launch a Plus version of the K12, an up-to-date mid-range Android smartphone with the same specs and look as the OnePlus Nord CE4. The newer model is now officially linked to a long-lasting battery and a robust build. The K12 Plus is also slated to debut with a new version of OPPO's SUPERVOOC charging technology that might also be destined for the brand's next flagships.