Samsung j7 prime comes with 3 gb ram Exynos 7870 octa core processor. this all sounds good and the internet downloading speed is also nice. But the phone is laging now a days after I have installed so many apps that is jio apps. As you all know to get the code of jio we need to download number of apps and I have done it. I have downloaded it on my another lenovo phone and the phone is still working proper but j7 prime has started hanging. Inspite of having 3gb ram this should not happen. The battry life is 3300 mAh is sufficient. using for 1 day the batry life comes to 5% at night. still ok. But the charging speed is vry very bad. Dont know why is this so. On playing games for 30 mins the phone heats very much. Or continuous using internet till 45 mins - 1 hour the phone heats badly. Primary camera not satisfied. Snall grains appear on screen and no extra features available. No front flash. and poor display technology, its like 480p display, not good for colour reproduction like reach ips or amoled. So guys these are the problems. think twice before buying.