Samsung galaxy on7 mobile is nice.since iam using in 2 monthns no problems.and main is width is long main disadvantage other wise mobile superb and picture quality and sound quality also good storge also good.wifi working is also good I sugest low cost best mobile ilke this mobile.slim and soft mobile . middle class people were chose this smart phone is best my openion.and also college students also usefull samsung galaxy on7 mobile.