HTC One Mini 16GB 4G LTE Unlocked GSM Android Smartphone - Silver (No Warranty) 2G: GSM 850 / 900 / 1800 / 1900, 3G: HSDPA 900 / 1900 / 2100, 4G: LTE 800 / 1800 / 2600 4.3" Super LCD2 Capacitive Multi-Touchscreen w/ Protective Corning Gorilla Glass 3 Android v4.2.2 (Jelly Bean OS (upgradable), Dual-Core 1.4 GHz Krait 200 Processor, Chipset: Qualcomm Snapdragon 4, Adreno 305 Graphics 4 Megapixel Camera (2688 x 1520 pixels) w/ Autofocus, LED Flash + Front-Facing 1.6 Megapixel Camera, 720p + Video 1080p@30fps, HDR Internal Memory: 16GB, 1GB RAM, Non-removable Li-Po 1800 mAh Battery, Talktime: Up to 20 Hours 40 min (2G) / Up to 13 Hours 20 min (3G), Standby: Up to 500 Hours (2G) / Up to 692 Hours (3G) 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.