The reason behind it is 1.Huge 3900 mah battery
2GB OF RAM
5MP front and 8Mp rear shooter takes good images
Containes lollipop 5.1
Looking wise up to the mark
16 GB internal contain approx 11 GB free and external card supported up to 32 GB Negatives
1.Battery non removable
2.Sound quality not so good
3.Low light images are not good