Reliance jio-fi is very useful product of everyone. About speed of ISP connection, It gives great speed. This supports jio sim. This has some features like it supports wifi and also connect up to 31 devices. It also has its web portal where you can change or manage password. Also you can set limits of user connections and speed. This is also connection reliable. This provide wireless service. This is very easy to carry. Because of its small size and it is also battery supported which can run at 6 hours. Service and support is good. Query can be solved by customer care. This is valuable for money. I will recommend you to buy this.