What is an eSIM?

Multiple International Mobile Subscriber Identities

Even if you don’t consider yourself to be a “techie,” you may have heard of an eSIM card, also known as an eSIM (Subscriber Identity Module) card. Mobile technology is quickly being transformed with the arrival of eSIM cards. With each forward step of technology, wearable gadgets, smart appliances, and many data-sensor applications tend to decrease in size. Commonly referred to as the Internet of Things (IoT), these devices, although getting smaller and smaller, still have to reach a standard processing capacity as well as execute a variety of functions. With the employment of eSIM cards, this is more than possible. In the form of re-programmable SIMs, these cards grant the device owner the capability to compare networks and select them, all directly from the gadget.

Though this nascent piece of technology was first spotted in the Samsung Gear S2 3G in 2008, the Apple Watch 3 was the true deliverer of eSIM technology. It is an incredible benefit to consumer electronics manufacturers, but...

Why should today’s consumers care about eSIM?

eSIM has several positive features for consumers, and if your next device supports eSIM, it will be helpful to have a hint of background knowledge about it, so you can get the most out of this technology. Unlike traditional SIM cards, eSIM cards won’t need to (or be able to) be removed from the device in which they are located. The eSIM card is an extraordinarily small piece of hardware, approximately the size of an adult’s pinky fingernail. For compact gadgets, like smart watches, which don’t have the space for a traditional SIM card, this is more than perfect.

Because the eSIM technology is not removable, the idea is that the device owner will be able to switch operators without the added hassle of changing SIM cards. With just one phone call, eSIM technology gives the device owner the freedom to switch to a new carrier quickly. All necessary information is transferred via software in the blink of an eye.


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What does the future hold?


Today, eSIMs are used in more than just watches. Currently, physical SIM cards have appeared in a few different sizes; there is no consistency between devices. With the eSIM, one standard size is created that will be placed into devices. Consumers will notice a significant advantage while travelling. Phone bills can quickly snowball to outrageous amounts while in foreign countries, but with the facilitation of switching networks so easily, this expensive problem can be eliminated.

Society tends to associate “smaller” or “slimmer” technology with “better technology.” With that in mind, this budding technology will fit right in with the mainstream. There is no doubt that eSIM will become a household term in the very near future.