Internal 128GB 6GB RAM. Wireless frequencies for 3G, 4G, LTE and 5G vary by network. SIM Nano-SIM. 5G bands 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 78 SA/NSA. Speed HSPA, LTE, 5G. Network : Factory Unlocked, works on US and International GSM networks (The phone is NOT compatible with CDMA networks, such as Verizon, Sprint, Boost, etc.).