HTC One XL X325e Black/White Factory Unlocked 1GB RAM - International Version No Warranty CPU - Dual-core 1.5 GHz Krait|Super IPS LCD2 - 720 x 1280 pixels, 4.7 inches|16GB storage, 1GB RAM|8 MP, 3264x2448 pixels, autofocus,|Android OS, v4.0 (Ice Cream Sandwich) 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.