Can I use a SIM and Instarem’s eSIM at the same time?

Absolutely! You do not have to remove your regular SIM card to use an Instarem eSIM. Most smartphones support dual SIM technology, so you can have both SIMs installed at once. Please make sure to check your smartphone settings for dual sim capability. 

Note that you may incur additional roaming charges from your regular SIM card if used overseas.