Are fast charging technology, but the way to achieve is not the same. OPPO VOOC flash charge is a low voltage high current fast charge, low temperature when charging, more safe. QC3.0 is high, low current fast charging, charging temperature is slightly higher, but the wire requirements are low, more convenient. Flash charge is a fast charging technology that can make the mobile phone fully charged in a short time, independently developed by OPPO, and applied for 18 patents, which increases the fastest charging speed by more than 4 times, and has impeccable intelligent all-end five-level protection.