Samsung Strive A687 Unlocked GSM Slider Phone , Full QWERTY Keyboard, 2MP Camera, A-GPS, Bluetooth and microSD Slot - Purple This unlocked cell phone is compatible with GSM carriers like AT&T and T-Mobile. Not all carrier features may be supported. It will not work with CDMA carriers like Verizon Wireless, Alltel and Sprint. Fast 3G connectivity; Memory expansion via microSD card slot GPS navigation capabilities via AT&T Navigator service Slide-down full QWERTY keyboard; 2-megapixel auto-focus camera Bluetooth 2.0 connectivity with stereo music streaming (A2DP) capabilities 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.