Size5.5 inches, Dual SIM (Nano-SIM, dual stand-by), OS: Android OS, v6.0.1 (Marshmallow), Camera: 16 MP, f/2.0, phase detection autofocus, OIS, LED flash, Secondary: 8 MP, Memory: 64 GB, 6 GB RAM. Chipset: Qualcomm MSM8996 Snapdragon 820.;Unlocked cell phones are compatible with GSM carrier such as AT&T and T-Mobile, but are not compatible with CDMA carriers such as Verizon and Sprint.;Please check if your GSM cellular carrier supports the bands for this model before purchasing, LTE may not be available in all regions since this is an international model: 2G: 850/900/1800/1900, 3G: 2100/1900/1700/850/900, LTE: 2100/1900/1700850/2600/900/700/2300.;This device may not include a US warranty as some manufacturers do not honor warranties for international items. Please contact the seller for specific warranty information.;The box contains: Your new device, USB cable, Charger (may be foreign) If so, a FREE US adapter will be included, Documentation.