I always enjoy good speed 4G internet. if anyone has 3G phone, he can connect to JIOFI hotspot than easily use free internet service. this hardware is very slim, we cat take to any where for use. this device easy to use. anybody can get operating system easily. while we are traveling, it not connect properly. but if network available it work very fast and access internet very fast. good quality video calling and voice calling. there is no connectivity problem.