LG Optimus L1 II E410 E410i Black Unlocked GSM Android 4.1.2 Smartphone 4GB 3G Data Capable - GSM 850 / 900 / 1800 / 1900 Bluetooth Enabled, Wi-Fi Capable Android 4.1.2 Speaker Phone, Touch Screen GPS & Internet Browsing Unlocked cell phones are compatible with GSM carriers like AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers). Unlocked cell phones will not work with CDMA Carriers like Sprint, Verizon, Boost or Virgin.