Samsung galaxy j7 is one of the harmfull android phone of samsung one of the my friend was using this phone when he removed his phone from charging and try to start it burnt and his hand gets a severe damagae that was because cpu performnace of this phone is not good I dont know Was it a unique case? but trying to be aware and not using this phone
also hanging problem is same as all of samung phones and battery backup is also not good but I love the graphics of samung phones look is also dashing