I am using samsung j1 this mobile is very easy to run it, s sound quality is good , it, s screen and picture quality is very clear we can watch hd videos, downloads many apps in this mobile very easily because it’s speed is well .and the best feature of this mobile phone is battery backup is durable and if u want to save ur battery for long day u can keep ur phone on stand by mod .standby mode is good feature of this phone . the price of this phone is according to there feature is very low so try it and enjoy to fast run and good storage phone samsung galaxy j1