I purchased Micromax Canavas Doodle 4 six months ago. It is an extraordinary mobile phone according to me. Doodle4 have 15.24cm( 6’) wide display with Gorilla Glass 3. It has 3000mAh battery. Battery backup is high & long lasting. It has lolipop( 5.0) Andriod OS. RAM is 1GB & processing speed is of Doodle4 is excellent. It has 8GB internal memory and 32GB expandable memory. I love my Micromax Canvas Doodle 4 very much.!