Outside of USA, the transmitter of the device is capable of operating also in GSM/GPRS/EGPRS900 and GSM/GPRS/EGPRS1800, HSUPA/WCDMA900 (Band 8) and HSUPA/WCDMA2100 (Band 1) which are not part of this filing. This is a dual-SIM device. As both SIMs use the same antenna and transmitter chain, full evaluation of this device has been made by activating a single SIM only.
The size specs of 139.97 x 71 hint about it having a 5-inch display. So, may be it is a mid-ranger slotted between Lumia 630 and Lumia 730, specifically targeted to China (Asia) market with bigger display and slightly higher resolution than Lumia 630 and its variants. It uses battery BL-L4A, which is not used in any other Lumia device before.