The HTC One A9 is an Android OS v6.0 smartphone have 5.0-inch display, 1.5GHz Quad Core processor, 2GB of RAM and 16GB of internal memory. The back camera is 13 megapixels. The phone supports Single SIM cards and is powered by 2100mAh battery. It makes all the phone's applications work like a charm. Your performance is taken to the next level with the HTC Android OS v6.0 operating system. With the Dual camera capacity, you will be able to capture all those memories in sharp and clear pictures.