I brought samsung j7 for me after trying lenovo vibe and I should say that it is the best purchase have ever made.
Battery Backup It has a very good battery back up and it charges very fast. As I observed it was charged from 18% to 49% in just 15 minutes.
Screen Its screen size is very good and very handy.Its screen glass is scratch resistance and very strong.
Sound It has a very good sound quality. Phone calls can be heard in heavy traffic and even on bike too.Listening to songs is very enjoyable.
Looks It looks very cool especially the gold edition is the best edition I have seen and purchased. It has a glass sleeky body which make it shine more and more.
Overall Perfomance Its overall performance is very good. It do not heat up, battery do not die easily, looks good in hand. It is the best budget smartphone I ever had.