Earlier this week OPPO introduced its 30W VOOC 4.0 Flash Charge fast charging, an upgrade to 20W VOOC 3.0 that is used in its current devices. OPPO already said that this will debut in K5 smartphone, successor of the K3. Today realme has confirmed that realme X2 will feature the 30W fast charging technology. The phone will be introduced in China on September 24th.