Apple had left its biggest and smallest versions of the iPhone 12 for last in terms of making them available to buy. Now, however, both the successor to the 11 Pro Max and the completely new 5.4-inch Mini variant can be pre-ordered from their maker's website. However, these devices, as with the rest of their series, may not be compatible with a user's old wireless chargers.
https://www.notebookcheck.net/Apple-releases-the-iPhone-12-Mini-and-Pro-Max-variants-amidst-a-wireless-charging-controversy.502599.0.html