What is eSIM?
The "e" in eSIM stands for embedded SIM (Embedded Subscriber Identity Module) and was created by the GSM Alliance. The specifications for eSIM were released in 2013 but were likely being worked on for a few years prior. SIM cards have typically been something inserted into the side of the mobile phone, whereas the eSIM card is embedded inside the device instead. There are many advantages to this new technology, including how small the component is, how it makes it easier to switch operators, and how it helps different devices to be interconnected.
- eSIM stands for embedded SIM.
- The GSM Alliance created eSIM.
- eSIM cannot be removed but is embedded in the device.
- eSIM is smaller than previous SIM cards.
- The technology makes it easier to switch operators.
Makes it easy to switch carrier
With regular SIM cards, you needed to switch SIM cards when you changed operators. eSIM makes it easy for you to switch operators or have multiple operators on the same phone. These embedded SIM cards thus prevent operators from locking your phone to a single operator.
For us at Dstny, who work with telephony for businesses, we see great opportunities with this. eSIM is very useful if you want to have your work number and your private number on the same phone.
When using eSIM with Dstny, all you need is a QR code that you scan via an email you receive from us, and then you're ready to surf and call with Dstny.
Good to know
- eSIM does not work on the Apple Watch. Not confirmed on the Galaxy Watch and other smartwatches yet.
- The email containing the QR code link is sent from firstname.lastname@example.org
- eSIM cannot be activated directly from the landing page on the phone that is to have the eSIM. It must be scanned with the phone from another screen.
- The number assigned to an eSIM is randomly selected from a number pool dedicated to eSIM. It is not possible to choose a number at present.