ZOPO will soon release two 4G products in the international market, the ZP320 and the ZP520.
The ZP520 has a more stylish design than the ZP320. There is a small hole above the camera which shows that the ZP520 may support a noise-cancelling dual-microphone. It will be available in black and white and its measurements are 154 x 77.7 x 9.9 mm.
The ZP520 has a 5.5-inch display screen with a qHD resolution which is not that high, which probably shows that this could be an entry-level phone. Like the ZP320, the ZP520 uses the MT6582 and MT6290. It also has 1GB RAM, 8GB ROM, and a 2mp/8mp dual-camera. It is powered by a 2400 mha battery and its OS is the Android 4.42.
The ZOPO ZP520 has already been officially released in Shanghai where it costs 199 USD. [source]