I bought Samsung Galaxy Core about 1 year ago. It was not so long since the phone was released. It was having pretty good review at that time. It is very slim, good design, 5 mp cam with flash, dual sim, 1 GB ram, 4 GB internal memory etc.
All these factors made me buy this. I bought it with very high expectations.
But the phone was not even closer to that. There are many problems with the phone.
- High resolutions videos wont work - Phone will get heated if we talk about 30 minutes - Camera wont work at times - Phone is very slow even if we only use the basic apps like FB, Whatsapp etc.
Battery back up is also really poor. So from my point of view I will suggest all not to buy this phone.
You can go for Moto G which is the best phone in this budget range.