This phone is build by samsung, and nothing is good with that. Samsung j2 specification is just similar ti 5000 rupees phones of micromax, karbonn and intex. And Samsung service centers are too dificult to locate and search.
I bought samsung j2 from snapdeal. It arrived within 4 days. and cost around 7800 rupees. I switched on the device, it took 20 minutes to start. Very Slow processor and laggs ruined the phone experience. If you want to use phone more then 1 year, I advice not buy samsung j2. The battery lasts 6-7 hours with a moderate use. Home button is sometimes did not work as per the users tap. Otherwise Touch is very responsive. Device sometimes heatup while charging. and gaming . I noticed this while play angry birds. Dont buy, if you have a budget problem go for lenovo and redmi prime 2.