This galaxy J7 has overcome many issues like battery backup, heating etc. Now tell you about its specifications:
The phone comes with 13 MP of primary camera with auto focus, touch focus, panorama facility etc.
5 MP of front facing camera. Both the camera takes high quality pics.
Display size is 5.5 inch, AMOLED capacitive touchscreen, which is wide enough and crystal clear pixels resolution.
The screen support 16M color.
The phone comes v5.1 Lollipop OS with 1.5GHz octa core processor.
It has 1.5 GB RAM and 16 GB ROM.
It has dual sim and both slot support 4G.
Battery capacity is 3000mAH, which stay last long.
There is less heating issue. I recommend this phone.