The Nokia 8210 4G is powered by 1.4 GHz by Quad-coare processor and it comes with 48MB of RAM. The Nokia 8210 4G packs 128MB of internal storage that can be expanded with microSDHC (dedicated slot). The Nokia 8210 4G runs Unisoc T107 (22 nm) and is powered by a Li-Ion 1450 mAh, removable battery. FREQUENCIES : COMPATIBLE TO USE WITH NETWORK SIM CARDS THAT WORKS ON SIM CARD 1: 2G : GSM 850 / 900 / 1800 / 1900 and/or 3G : HSDPA 850 / 900 / 2100 and/or 4G : LTE 800(B20) / 850(B5) / 900(B8) / 1800(B3) / 2100(B1) / 2600(B7) SIM CARD 2 : 2G : GSM 850 / 900 / 1800 / 1900 and/or 3G : HSDPA 850 / 900 / 2100 and/or 4G : LTE 800(B20) / 850(B5) / 900(B8) / 1800(B3) / 2100(B1) / 2600(B7) IMPORTANT : PLEASE CHECK WITH YOUR NETWORK PROVIDER FOR COMPATIBILITY CHECK BEFORE YOU PURCHASE.