Samsung galaxy j2 is not a perfect mobile because its sound not good very low sound qulality and its primary camera not good its not clear its normal camera and its mobile 1.5gb ram its not good a mobile . its mobile front camera not good for selfies its camera not clear and its mobile price rate not perfect in this features. its mobile 4g but when I use 4g data its slow and not working and andriod version 6.0 is good but not this phone . and this phone single micro sim card and its mobile battery is very low because you cannot use full it day. so I thinks its not a perect mobile in this price.