An unknown Xiaomi device, sporting model number M1908F1XE, has received 3C certification hinting at an imminent launch in China. The 3C listing doesn't reveal much about it but confirms that it will come with super fast 45W charging support.
That would make it the fastest charging Xiaomi yet and strongly suggests it's going to be a flagship. And seeing how the Mix series is the next ones due for a refresh, we are likely looking at the Mi Mix 4.
It's currently unclear if Xiaomi will call its 2019 Mix device the Mi Mix 4 or Mi Mix 5 because the number four is considered unlucky in China. However, it's worth noting that the company does have phones with the number four in the name, like the Mi 4 and Redmi Note 4.
Either way, the Xiaomi smartphone will likely pack Qualcomm's latest and greatest Snapdragon 855+ SoC and a camera sensor better than Samsung's 64MP ISOCELL Bright GW1.