Blackberry Z10 STL100-3 AT&T Locked OS 10 Cell Phone - Black GSM 850 / 900 / 1800 / 1900, 800 / 850 / 1700 / 1900 / 2100, LTE 700 / 850 / 1700 / 1900 8 Megapixels w/ autofocus, LED flash (3264 x 2448 pixels) 16 GB storage, 2 GB RAM + microSD Slot expandable up to 64GB Qualcomm MSM8960 Snapdragon BlackBerry 10 OS