Samsung Galaxy J3 (2016)
8 GB, Black, 5", Hybrid Dual SIM, 8 Mpx, 4G
Samsung Galaxy J3 (2016)
8 GB, Black, 5", Hybrid Dual SIM, 8 Mpx, 4G
No, the SIM-Cards are unified worldwide. You just need a microSIM card from a carrier that supports this phones bandwiths.
Yes, memory can be expanded with a microSD card in addition to two SIM cards.