Samsung Galaxy S Duos 2 GT-S7582, 4GB, Factory Unlocked, International Version, White Dual Sim GSM 850/900/1800/1900 3G H+ 900/1900/2100 Not LTE 4" Display, 480 x 800 (WVGA), Android 4.2 Jelly Bean Main Camera: 5MP, LED Flash, Auto Focus. Front Camera: VGA Dual Core 1.2GHz CPU, 0.75 GB RAM, 4 GB ROM, Supports MicroSD up to 64GB (not included) This device is Carrier-unlocked and may be used with any GSM carrier that uses a frequency or band that this device supports. A SIM card and service plan must be purchased separately. Unlocked GSM phones will not work with CDMA networks like Boost, Sprint or Verizon Unlocked cell phones are compatible with GSM carriers such as AT&T and T-Mobile, but are not compatible with CDMA carriers such as Verizon and Sprint. This cell phone may not include a US warranty as some manufacturers do not honor warranties for international version phones. Please contact the seller for specific warranty information.