Both physical SIM cards and eSIMs securely connect you with your network and give you access to your service so you can use your plan. A physical SIM card is a small chip that is physically inserted into your phone. An eSIM is a digital chip that can be downloaded to your phone. If you have an eSIM compatible device, this will give you the quickest way to start using your plan. Otherwise, we’ll ship you a physical SIM card in the mail to start using your Mint plan.