It has already been reported that the Nubia Z7 flagship phone will be released tomorrow. Recently, the website of the Ministry of Industry and Information Technology (MIIT) recently listed two of Nubia’s new phones, the NX505J which has a 5.5-inch screen and NX507J, which has a 5-inch screen. These could be the soon-to-be-released Nubia Z7 and Z7 mini.
MIIT certifies Nubia Z5 mini（NX507J）
As the information at the MIIT website shows, the NX507J sports a 5-inch 1080p screen and runs on a 2GHz quad-core processor. It has 2GB RAM and 16GB ROM (also supports microSD expandable memory). It also has a 5mp/8mp camera and its operating system is the Android 4.4.2.
Its measurements are 152.75 x 76 x 8.5mm and it weighs 168g. It also supports TD-LTE, TD-SCDMA, WCDMA, and GSM.
MIIT certifies Nubia Z7（NX505J）
The NX505J sports a 5.5-inch 1080p TFT screen and uses a 2.3GHz Snapdragon quad-core processor. It has 2GB RAM and 16GB ROM which can be expanded by microSD. It also sports a 5mp/8mp dual camera and runs on the Android 4.4.2 OS.
The Nubia NX505J’s measurements are 152.7 x 76 x 8.5mm (which is almost exactly the same as the mini-version) and it weighs 168g.
In addition, the Nubia NX505J also supports TD-LTE, TD-SCDMA, WCDMA, GSM internet.
It has also been rumoured that the Nubia Z7 will use a 2K screen and that its processor is the Snapdragon 805. Both the Nubia Z7 and Nubia Z7 mini are expected to come out on the 8th. [source]