Reliance Industries Chairman Mukesh Ambani unveiled the much awaited Reliance Jio 4G phone today. The phone would be available for pre-booking from August 24 onwards following its launch on August 15. There are two prepaid plans that you can sign up to with the Jio Phone. Both have a one month validity, and include unlimited data, unlimited calling, and SMS. The plans are for Rs. 153 and Rs. 309 respectively.