Blackberry Q5 SQR100-2 8GB Unlocked GSM 4G LTE Dual-Core OS 10.2 Smartphone - Red 2G: GSM 850 / 900 / 1800 / 1900, 3G: HSDPA 850 / 900 / 1900 / 2100 4G: LTE 800 / 900 / 1800 / 2600 5.1&amp;quot; IPS LCD Capacitive Multi-Touchscreen w/ Protective Corning Gorilla Glass 3 BlackBerry OS 10.2, Quad-Core 2.5 GHz Krait 400 Processor, Chipset: Qualcomm MSM8974AC Snapdragon 81, Adreno 330 Graphics 16 Megapixel Camera (5312 x 2988 pixels) + Front-Facing 2 Megapixel Camera Internal Memory: 8GB, 2GB RAM + microSD Slot Expandable up to 128GB 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.