Recently bought a jiofi. And really guys its just worst. No battery backup, no proper sighs of battery or signal strength. dont know why they gave a sd card slot to it. And about speed its the worst. highest speed I got is 300kbps. battery 3 hrs. what can u use . they say can connect upto 31 mobiles. haahahaha. what will be the speed. cant even imagine and dont even want to imagine.DO NOT BUY. JUST WASTE OF MONEY.