The dual SIM functionality provides the capability to utilize two SIM/eSIM cards simultaneously. Here's the procedure for employing the dual SIM feature:

Using two eSIMs at the same time can be useful if you need to use two different phone numbers or networks on a single device. However, not all devices support dual eSIM functionality.

To check your remaining data: Please log in to your account - Click on My eSIM from the left side menu - Click on show details