The Mi 7 may just be 2018's killer device. The Xiaomi flagship has been confirmed to offer wireless charging functionalities that, when coupled with a Snapdragon 845, facial recognition, and a sub-$500 price tag makes the device one to watch out for.
https://www.notebookcheck.net/Xiaomi-Mi-7-to-support-Qi-wireless-charging.275992.0.html
So no metal backcase this time.
Please bring back plastic backcase or make a breakthru like CF or other composite case, glass is annoying and slippery