Samsung galaxy j1 4g is a very bad phone. They always hanging while using a internet. The processer of this phone is very low. The picture quality of this phone is good and very low battery backup of this phone.the sound quality of this phone is veery good. The phone is heating while using a internet and more tab open. The charging speed of this phone is very slow its full charge at 3 or 4 hour. The rear camera is good and front camera is very bad. There has no gorilla glaas on this phone. I dont like this phone