The eSIM allows you to be more flexible. No more waiting for a SIM card. No plastic card. No postage. Everything is digital and accessible from anywhere. Choose the subscription that you need, activate your SIM in 5 minutes and start using it right away. Dual SIM refers to the presence of two SIM cards in a smartphone. An eSIM can be compared to the physical SIM card. Due to the eSIM chip, your smartphone will automatically become a dual-SIM phone. Due to the fact that eSIM-capable phones usually have a SIM card slot, they automatically become dual SIM devices. An active eSIM and a physical SIM card in the slots can be used, for example, to make calls using two phone numbers, such as private and business, or to run subscriptions for telephony, and data, via one SIM each.