EKKO M4 Intel SoFIA Atom Dual-Core 3G 4GB Memory 512 MB DDR3 RAM 0.3MP Front / 2MP Rear Camera Android 4.4 Kit Kat Wi-Fi 4" IPS Screen - 480x800 TN Bluetooth v4.0 Connection Smartphone Unlocked Dual SIM Phone Intel SoFIA Atom Dual-Core 3G Bands - Android 4.4 Kit Kat 512 MB DDR3 Ram Memory - 4 GB Internal Memory 0.3MP Front / 2MP Rear Camera - 4" Screen - 480x800 TN Compatible with GSM carriers (AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, Pure Talk USA and select prepaid carriers). The phone will not work with CDMA Carriers like Sprint, Verizon, Boost or Virgin.