A Chinese website TechWeb reported that Xiaomi Mi Mix 2 will officially launch on september 12, 2017. Reportedly, Xiaomi has decided to snatch some market by release Mi Mix 2 on the same day as Apple launch their iPhone 8 on the same day.
Being the 10th-anniversary model, the hype around the iPhone 8 is huge. So, it would be a big risk for Xiaomi. It would be better if Xiaomi release Mi Mix 2 few days before Apple launch their iPhone 8.