Yesterday we heard that Xiaomi, Oppo, and vivo would all launch their upcoming flagship smartphone families in September. But what about sub-brands?Now the prolific Digital Chat Station on Weibo tells us what to expect from OnePlus and iQOO, specifically when the OnePlus 16 and iQOO 16 are going to launch. If you guessed September, you win. For reference, note that the OnePlus 15 and iQOO 15 both launched in October last year in China.OnePlus 15This September is going to be a very full month for smartphone launches in China, it seems. Of course, many of these devices will also...