I have used this phone, price and specification is good but there are some heating problems in this phone. It has a 4100mAH battery but battery life is not very good. I used to charge 100% in morning and about 5: 00 pm my battery reach at 16% , not surprising it will arrive at 0% . Otherwise it is the best phone in its price range. It have 3gb of ram, qualckam snapdragon 430 chipset which is based on octo core.