Hi guys.i am going to tell you the properties and benefits of samsung galaxy j7.i personally bought it and use it and believe it is a perfect mobile 1.5GHZ octa core, 7580 processor and it has 1.5 GB RAM . And it has 16GB its own internal storage and which we expand upto 128GB by using micro Sd card.its easy to use.overall it captures a great looking picture by its rear camera of 13 Mega pixel and front camera of 5 Megapixel with good resolution. Android 5.1 with 3000 Mah battery.