eSIM simply means “Embedded SIM” where a SIM is directly embedded into the device. It is a global specification developed by telecoms trade body – GSMA.
Unlike the SIM card, the eSIM can be programmed to work with various telecom operators. The users can change the operators remotely, straight from their device, without having to procure a new SIM card.
A traditional replaceable SIM card had information specific to a single telecom operator enabling only one connectivity per SIM card. On the other hand, a device with an embedded SIM or eSIM can be technically programmed to hold multiple profiles and with multiple operators.
In short, if you have a device with eSIM, you can manage multiple profiles, have more than one number and switch between them in ease.
The eSIM technology will not be limited to smartphones alone, it will find its way into other devices where continuous connectivity is required. For example, laptops, tablets and smart watches.
Embedding SIM into the device means savings in cost and space. eSIM technology can now be implemented into the hardware where it was previously not feasible due to cost or space restriction.
List of eSIM service providers
- Reference list of eSIM service providers all over world – by Apple
- Airtel & Reliance Jio provide eSIM service in India
What is eSIM?
An eSIM is an embedded SIM inside your device. With eSIM, there is no physical SIM card that you need to insert. Like a traditional SIM card, the eSIM stores data that is needed for your device. Source – VerisonWireless
Devices with Dual SIM with eSIM
Devices that have dual SIM with an eSIM have both a physical SIM and an eSIM. This allows you the option to have two different phone numbers on the same device.