A new leak suggests Oppo is gearing up to launch its A7 series of smartphones. The leak also reveals the key specifications of one of the lineup's rumored models, the Oppo A7 Pro Max.Tipster Digital Chat Station shared the alleged specs of the Oppo A7 Pro Max in a post on Weibo. The phone is tipped to be Oppo's first to pack a 10,000mAh battery, corroborating an earlier leak from June.Oppo A6 ProAccording to the leak, the Oppo A7 Pro Max will sport a 6.78-inch flat AMOLED display with a 120Hz refresh rate and 1.5K resolution.The smartphone is tipped to be powered by the...