Samsung galaxy j7 is the best phone of samsung under 15k rupees because of its performance ram management and camera
This phone bundled with 3000 mah battery which gives backup of 1 and half day in nirmal usage and gibes screen on time of 7 to 8 hrs in heavy gaming and multitasking
It also have 1.5 gigs of ram which is good for gaming and multitasking because of its ram management
And also have the samsung own exynos processor which provides good performance at all
In this phone the camera is of 13 megapixel which click good images in low light and day light also
And samsung after sale support is very responsive
But this phone is launched ay some overpriced but at that time I will recommend u to go for on nxt or j7( 16)
This phone is recommend for those users who need after sale support good and a device for long time