Motorola Moto E is released long time back. which has set up the standards for most of the low cost mobile features.It has a five MP rear camera. It has a good gorilla glass protection and not bad battery backup.
There were cons as well. Mobile gets heated up very soon and "No front camera" which makes us to be far from buying it.
Then almost an year later, second generation was release which overcomes many bad features from Moto E.