I like this pocket wifi because it support volte calling function option in this wifi. But one bad think aslo that it only support jio sim only. That think is bad.otherwise it is good battery life is aslo quite good if 2 person are connected battery can run max upto 5-6 hrs. That think is geart hence dont worry one good news aslo there if battery dead u can also use your jiofi wifi through usb port option I now its and common option is there in all wifi but without battery you can use jiofi