Model : BM5310Screen Size : 1.33 inch HD 240*240 ScreenSIM Card Quantity : 3 SIM cards (3 Nano SIM card)Phone Size : 82.5*36.5*12.4mm ( Weight 36g )Network : 2G GSM 850/900/1800/1900MHzMemory Card : 32Mb RAM,32Mb ROM(Maximum support 32GB expansion ,The system will occupy part of the memory，It is recommended to install a memory card before using the..