Now You can Use Reliance Jio on 2G/3G Mobile Phones..

Yes You Can Use Reliance Jio On  any 2G/3G Phones...

Reliance Jio Sim only works on 4G Network.
You just need to download the Jio Join app on Your 2G/3G devices.
Then you can get all the Jio services on your 2G/3G devices.
You just needs to connect with  any Jio-Fi with any Wi-Fi enabled 2G/3G device.

How to use Jio-Fi:

Just insert a jio sim into Jio-fi.
Turn this on.
Connect the devices (2G/3G).
Now open the Jio Join app .
Enjoy all jio services free till 31st March 2017.
Note: You can also buy JIO-FI on JIO Official site.