Samsung galaxy j7 is the worst mobile phone.This mobile is good at first and by continuous usage the speed of the mobile phone will be decreased .We can the upload the videos very fast and video streaming was very fast.It looks very smart and fastest mobile phone.But in this mobile the camera was so clarity and we can record the HD videos.This mobile doesn’t supports the most of the apps .By using the apps, the speed of the mobile decreases.To get reback our speed, we have to update software in our mobile from pc.It costs very much. SO FRIENDS MY ADVICE IS NOT TO BUY THE SAMSUNG MOBILE PHONES.