The Axon 7 mini that ZTE announced at the beginning of September is now ready to be purchased in the US. The phone just went up for pre-order today. You can buy one for $299.98, unlocked. It's currently listed by ZTE's online store as well as Best Buy and B&H. Amazon has it too, but the price isn't right for now - expect that to change in a few hours. Also by the end of the day, Newegg should allow you to pre-order an Axon 7 mini too. Unfortunately none of these retailers have bothered to mention when your pre-order will be shipped, so it's anyone's guess exactly when the device will be...
Source: http://www.gsmarena.com/zte_axon_7_mini_goes_on_preorder_in_the_us_yours_for_29998-news-21123.php