I was using samsung galaxy core 2 before it was my previous phone. The phone is not good. The processor and ram is low so I used to face lots of hanging cant use 1 app properly cant play any game because of the internal storage was low the camera also hanged a lot cant take any photo properly and the front camera was like not using it . The display protection was not good once this phone fall from my hand and in the display was full of cracks . The main problem is with procesor is not good of 1. 2 only and ram of 724mb.
So Samsung needs to improve their product processor as because of the hanging issue