Hello friends I am using JIOFI. I purchased 8 month ago.It provides the good speed in also device. But internet speed depends on the network. If travelling take this with you and enjoy . you can connect upto 32 devices at the same time. If your handset support wifi but your network supports only 2G or 3G network. The jiofi gives you a good battery time ehen you use it for about 7 to 9 hours in a single charge. you can easily use your 2G 3G mobile for 4g voice call. this wifi many more features are available this device and most importantly it is very user friendly . the device was giving 6 month of service. reliance mall and also store available. reliance is good service.