Samsung is good from all.it always give baat phone.Its is known for slim phone producer.In Samsung J1 first feature is its is 4g and it’s also support volte.its have video call option in Mobile dailer pad. Battery is almost good And phone run on os lollipop(5.1).We can change font style in setting.It is slim set.abd accurate screen size.sound quality is good.camera quality is in average.In this ranks of Mobile price is very good.It is present in more colour variations.it has 1gb ram and 8 internal memory.It is working perfectly.no hanging and heating problem.