Hello friends, I have been using Samsung J7 for the last 6 months. This is a great mobile. I do most of my work from mobile.Its battery lasts too long.There is no need to charge repeatedly, its memory is also very good. I did not need to insert this memory card.I watch it continuously 2-3 movies online without charging. Its battery lasts for a long time.It does not even hang up quickly and the touchscreen works very well.This is my most favorite mobile so far.Thanks guys, hope you like the review.