Hii guys.I use this device is it’s awesone first time I was confused for this device but I am wrong. Now I am using samsung galaxy prime 3g phone and I have experiance for the jiofi is not good it great. You can enjoy true 4g speed in any device like smartphone, pc, e.t.c. you can share your net with your family, friend. You can enjoy everywhere because it is a portable charging device and the best part of this device if u have android & ios phone u can download jio 4g voice call app and call hd voice and video call on any mobile sim but video call only use with jio sim user. Thank You