I have purcahsed this mobile in May, 2017. At the cost 8100. I have faced so many issues in the device. . . 1) . Battery: very poor battery packup. . . 2) . Heating issue: Some times the device show very high temprature 30-40. . . 3) . Picture quality: Picture quality is very poor of this device as compair to other devices. . . 4) . Voice issue: Some times I faced the voice problem in this device. Some times when I am calling suddenly the mic of this device stop working. . . I suggest if someone want to buy budget phone then try other phone than e451