iQoo Z9 Turbo was launched in China in April, with a Snapdragon 8s Gen 3 chipset under the hood. Now, the Vivo sub-brand is said to be preparing to unveil a new Z-series phone — iQoo Z9 Turbo+. iQoo is yet to announce a launch date for the phone, but the latest leak coming out of China tells us its launch timeline and which chipset it will use. The iQoo Z9 Turbo+ is expected to flaunt a 1.5K resolution display. It could run on a MediaTek…