Jiofi by reliance jio is good product which support a sd card for sharing music , videos, photos etc. And ajio 4G sim card. It has three indicators which show u battery level, network and connectivity. We can also use it for calling and messeging.
JIO 4G Voice
is application by reliance which enable us to use calling and messageing function. Its customer support service is not very good. But device is great value for money. It comrs in many colures and models but they have same function. It is also available in plug and play. It is good and portable product.