A91 is powered with 1.3 GHz Dual core CPU that allows you to run apps in a faster and smarter way.Enjoy videos & games on big screen as A91 is backed up with fast processor which gives you smooth experience of device performance. Karbonn presents A91 with Android's Latest Version OS 4.2 Jelly Bean. A91 comes with 3.2 Mega Pixels Camera that offers clear pictures.A91 adjusts exposure to ensure beautiful pictures of human subjects.Also it has Digital front camera for video calling through third party apps*. A91 is a Dual SIM Android Phone. SIM 1 Supports 2G & SIM2 support 2G Network.