It is my opinion that dont buy galaxy j1 because
Samsung galaxy has been fixed low rate given with low features
1) galaxy j1 is not good for heavy users because
Hit will turn in to very hot after using some time and you cant feel good with this.
2) this mobile is not going to use those who intrested in game. In j1 all games will going to be hang and if we play more games in it . It will hang for permenently .
3) the galaxy j1 have only 4gb rom which will not going to add many apps .you have to delete 1 app to get another app.
4) galaxy j1 first it will be good but after 4 , 5 months it will get battery problem . The battery will be decrease his self without using.
5) the galaxy j1 will not suppor some games and apps .
6) j1 is very big mobile to hold in hand vecause it is 8.2mm .
7) if we put 16 gb or more sd card it will going to be hang.
8) the main thing needed in this mobile is 4g the mobile did not had a 4g support.
Conclusion
If you are in the mood to purchase new mobile I will say dont buy galaxy j1 it had some qualities good but its not be the good mobile from samsung company add some more money to it and buy various mobiles which is better than j1