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eSIM

eSIM: The next evolution of SIM card technology

Article
February 29, 2024
Daryl Lim & Zachary Brown

The humble SIM card is getting its next evolution.  

While the latest smartphone changes every 6 months, the technology that connects our devices – the humble SIM card – has largely stayed the same for decades.

Today there are over 7.8 billion physical SIM cards in use around the world. SIM cards are as ubiquitous as mobile phones. But soon, most of our devices won’t use a physical SIM card at all. Instead, they will be activated and connected via ‘eSIM’ – a new, all-digital technology.

The next evolution of SIM cards

In the early days of mobile communication, Subscriber Identity Module (SIM) cards were introduced as a globally standardised way to identify and authenticate mobile users.  

SIM cards store subscriber information, ensuring secure connection between a mobile device and mobile networks.

Over time, SIM card evolution has been driven by the need for ever-smaller sizes. We've progressed from full-sized SIMs to the now familiar mini, micro, and nano formats. The eSIM represents the next step of miniaturisation, doing away with the need for a physical card altogether.

What is an eSIM?

Embedded Subscriber Identity Module (eSIM) technology represents a transformative leap in the landscape of mobile communication. Unlike traditional SIM cards, eSIMs are not physical cards but rather integrated chips embedded within devices.  

The eSIM was originally developed by the GSM Association in 2012. After a period of slow adoption (mainly due to limitations of carrier support and lack of compatible devices), eSIMs have now begun to enter the mainstream of consumer devices.  

Today, eSIMs are found in allmost of the latest smart phones, as well as smart home devices, tablets, laptops and wearables. Industry analysts estimate that by 2025 there will be 3.4 billion eSIM-capable devices in use around the globe.

Traditional SIM cards vs eSIM

The invention of eSIM addresses the drawbacks of traditional SIM cards. For example, the inconvenience of swapping SIMs when changing carriers, travelling overseas, or upgrading devices.  

eSIMs eliminate the need for physical SIM cards, enabling users to switch carriers seamlessly and manage multiple profiles on a single device.  

The appeal of eSIMs lies in their adaptability and versatility. They are not only changing the way we think about traditional SIM cards but are also instrumental in accommodating the demands of modern device design, connectivity, and user preferences.  

As technology continues to evolve, the embedded SIM is undeniably at the forefront of shaping the future of mobile communication.

Seamless switching

This technological evolution is now ushering in an era of enhanced flexibility and convenience. Changing mobile providers is as simple as tapping a few buttons on your smart phone. Activating an eSIM is done in minutes, without any of the hassles of snapping out SIM cards.  

However, this ease of switching puts pressure on mobile carriers to provide competitive plans and excellent service to retain customers. eSIM drives carriers and MVNOs to streamline onboarding processes and improve their digital customer experience.

Connected devices and IoT

Beyond our smart phones, eSIMs play a pivotal role in connecting the Internet of Things (IoT) ecosystem. Devices ranging from smartwatches to connected cars leverage eSIM technology, facilitating seamless connectivity and communication.

Enhanced security

The enhanced security features of eSIMs also contribute to their appeal. eSIMs offer several security improvements over traditional SIM cards.  

First, being embedded into a device, eSIMs are nearly impossible to physically remove or steal, unlike SIM cards which can be targeted. Second, eSIMs can support stronger encryption protocols and secure authentication processes, providing greater protection for user data.

Finally, eSIMs can be managed remotely. This is especially important for Enterprise fleet management. Where, if a device is lost or stolen, mobile service providers can remotely disable the eSIM profile, preventing unauthorised use.

Provide eSIM innovation to your customers today

For consumers, eSIM adds flexibility and takes away the headache of switching mobile providers. For MVNOs and telecom providers, the transition to eSIM offers new opportunities to reduce costs and win market share.  

To unlock the potential of eSIM technology, providers need a strategic plan to bring this capability to their customers as soon as possible.

Have you transitioned to eSIM yet? If you're an MVNO or telco provider, contact us today to discuss how eSIM could help your business grow.

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