I watched the phone release event of a popular company which spoke about the usage of eSIM in all upcoming handset models and ceasing of physical SIMs. This got me thinking on what eSIM is and all the buzz around it.. It might be hard for us to understand these jargons. So, let us see why we need eSIM and if it has any benefits over your traditional physical SIM cards.
Put it simply, a SIM is your Subscriber Identity Module and “e” stands for embedded. This makes it an embedded SIM (eSIM). It is built (embedded) into the device itself, for instance – mobile/cell phones which support eSIM have a tiny chip (eSIM) inside them.
If you travel abroad for a longer time than a typical holiday, you might need to get aSIM card that works at the destination country without restrictions. Going into the local stores to get a new SIM card is quite a tedious task, but also having multiple SIM cards to manage. What if your phone supports an eSIM and you can manage remotely different Mobile Network Operators (MNOs) profiles and therefore multiple contracts? Switching once you land with a few clicks to the one you want. This would make life convenient for you as well as for the service providers.
Is this the only application eSIM can offer over the traditional physical SIM cards? No, eSIM has many other applications.
Figure 1. Benefits of eSIM
To sum up, eSIM has a smaller footprint compared to the SIM and it gives more design freedom to the device manufacturers. Besides, there is no need for a device opening. Thus, it is easier to reach higher IP protection levels.
The end user experience is significantly enhanced with the addition of multiple profiles and global interoperability thanks to the GSMA standard.
Infineon provides eSIM as a turnkey solution and you can check out the OPTIGA™ Connect space for more details!
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