What if we told you that physical sims might be replaced entirely in the coming days? It is still widely used, with technology working to reduce its size and boost its efficiency.
During this process, the eSIM was configured. An embedded sim or eSIM is also used with select phones and devices. To use an eSIM, selecting a carrier that provides an eSIM facility is necessary.
But with the advent of IoT in the telecom industry, the eSIM only got to take to the throne after its predecessor, iSIM, was invented.
If eSIMS were compact and secure, iSIMs would go the extra mile and be integrated directly into the processor. So how do eSIMs and iSIMS differ, and which of these is set to revolutionize the industry?
This blog explains the two and discusses which technology may have the upper hand.
Why is the physical SIM being replaced?
A physical SIM card (Subscriber Identity Module) is the standard card that fits the SIM slot on the phone. It is portable and can be easily switched between devices. Physical SIMs are most in usage in the consumer mobile phone market.
The standard size of physical SIM cards used to be 12x15mm, but their smaller counterparts, such as microSIM and nanoSIM, are more in use.
But the simplicity of the physical SIM is its drawback in some cases. As it is easy to remove and tamper with, it cannot be used in IoT devices. Moreover, the IoT ecosystem may contain several devices and be deployed on a large scale. Monitoring each IoT device for such risks may not be possible.
Switching between carriers or network providers is easy and convenient with the physical SIM. The physical SIM of one provider would have to be removed and replaced with the other provider. But this is not feasible for IoT technology due to the large number of devices involved.