Jio sim I launched one year before and I wanted to use it for many days but I can’t because I don’t have money to buy a new and good cell phone but now I can buy Jiofi and use jio sim in it I am vey happy bye hearing the new that jiofi has launched now many people are there who are using 2G and 3G phone they can also use 4G on their phone vey usefull product