The Future Speaks eSIM, But What Is eSIM Exactly?

The Future Speaks eSIM, But What Exactly Is eSIM?

The conventional plastic SIM cards, which is a norm in smartphones & Tablets are on the verge of getting replaced by the embedded SIM (eSIM). Whereas SIM cards are a substantial part of a global mobile market, eSIM is prevailing as a new trend of technology that provokes the concept of global connectivity and seamless network transitions.

No surprise that you will notice this tech pretty much since Apple is manufacturing its new iPhones to support the permanent existence of the eSIM into its devices.

Thus, you need to know more about this tech; what eSIM card is, how it works, why it is catching on and its future implication. You are just in the right place to capture a clear image of the eSIM card.

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What Is eSIM Card?

Just as what the name indicates, an embedded SIM is a SIM card that is integrated within the device itself and can’t be removed.  This is the way the manufactures of the new models of the SIM cards place them in the motherboard across the industry so that you do not need to order and physically insert new SIM cards into your device.

eSIMs are not quite the norm of all phones at the moment. However, interest in them is steadily growing. This is because the market of smartphones, including Apple, Samsung, Google, and Huawei, is orienting its products towards eSIM adoption. You might be pleasantly surprised by what eSIM has to offer if you’re on the fence about this new technology.

But Still, What Is the Difference between SIM and eSIM?

The concept of physical SIM card dissecting is becoming increasingly prevalent. But what exactly makes the eSIM different from the SIM card?

On one hand, SIM cards are designed to basically give the subscriber a unique identity through an easily accessible number, and it occupies a relatively large proportion of a device where it can be manually installed and removed. Moreover, its progress came across different sizes: Standard, Mini, Micro, and Nano. As for managing the SIM cards, companies keep this mission under their control. However, physically removing your local SIM and replacing it with a new line from a local carrier in the country you visit make it more likely to be dislodged, damaged or even stolen.

On the other hand, eSIM is approximately half the size of the smallest Nano SIM card granting manufacturers more design flexibility. Furthermore, they can be managed remotely when you need to change networks or update settings of your eSIM using an over-the-air, remote SIM provisioning solution (RSP). Also, you won’t drop and step on an eSIM by mistake, for no one can take them out from the device in the first place. You are advised to know more about the differences between SIM and eSIM.

When can I start using an eSIM?

It may be a while before the eSIM’s full potential is realized, but with the right phone and service you can now take advantage of such technology, especially when several manufacturers of handsets, such as Apple and Google, have embraced the eSIM, and many major carriers around the world now support eSIM service.

In a nutshell, if your carrier already supports eSIM along with your smartphone, you can start using the new technology today. No more extra roaming rates surprise you, for you would be able to procure data roaming services prior to travel. So, which eSIM data plan should you pick, and how you can set it up? Here is a tutorial on how to install your Data Only eSIM Packages Plan using Numero data eSIM plans.

Therefore, eSIMs are catching on! Let us explain more reasons straight away:

  • Ability to select and change the carrier from the same eSIM by selecting the service provider you want to subscribe to and scanning a specific QR code sent to you without having to change the SIM or purchase another. As a result, you don’t have to be limited to a particular company you purchased your smartphone from.
  • Having one line for calls and another for data plans from two different companies due to their better offers.
  • Accelerate and facilitate the IoT project: anything around us, be it the clock, the car, or any device connected to the Internet can be controlled altogether via the eSIM. That is to say, smart devices can be monitored and connected to the network provider with remote changes implemented using eSIM technology.
  • Organize your calling lines in your phone so that you can customize one line for professional calls and another for personal calls.
  • Appropriate size: Jean-Christophe Tisseuil, Head of SIM Technology at the GSMA (Global System for Mobile Communications), says: “the space saved by embedding a SIM can be as much as 90% on a physical card. This helps OEMs (Original Equipment Manufacturer) free up space for other uses, such as batteries.” Consequently, more devices are more open to embracing this small eSIM like smartwatches, wristbands and rings, increasing the number of mobile connections.
  • More Convenient for travelers: It is no surprise that technology is applying more convenience and adaptability in exploding the eSIM tech out in the market to expand its beneficiaries and include travelers. Now you can be connected remotely with the multiple mobile operator’s profiles, and it is all done through software. For example, the same Apple Watch 4 can be used on Verizon, T-Mobile or Sprint in the US, while in the UK, the Apple Watch 4 can be used on EE or Vodafone.
  • Secure: No more worries when your phone gets lost or stolen because your eSIM-enabled device can be remotely deactivated so that thieves will never take advantage of using your smartphone nor buying it in fear of being caught. Also, the placement of the eSIM within the device makes it water- and temperature-resistant.
  • No more roaming charges: Programming as many Networks and Data Plans to your device is another life-changing advantage for frequent travelers as it eliminates the hassle of being bombarded with numerous roaming charges.
  • Who wouldn’t prefer to turn up in a new country, switch on their phones and immediately connect to a network with only a few taps before even stepping out of the airport? Now, this is possible when you already have an eSIM supported device. Check out Numero’s Data Plan Page to Get your International eSIM Activated Online Right Now!
  • Flexible Activation and Usage: In a survey presented by Telefonica at the World eSIM Summit 2018, 60% of the participants reported they could activate the device effortlessly. It means that if you ever decide to leave Verizon, for instance, for T-Mobile, you won’t have to either go to a physical store to obtain a new SIM or struggle to wait for it to be shipped to your doo All it takes now is a quick phone call, a scan of a QR code, or simply an installation of the carrier’s app for instant activation to program your eSIM-enabled device.

Is it a Dream Coming True Sooner or Later?

Apple is currently the pioneer in the product domain with its iPhone series supporting eSIM. According to a Bloomberg report, high figures indicate a steady demand for the company’s most important smartphones, Apple iPhone 11 and Apple iPhone XS, therefore, Apple suppliers are preparing to produce components for up to 75 million new iPhones in the second half of 2019, almost the same number as in the previous year.

According to ABI Research, the eSIM smartphone market is expected to reach 420 million units every year by 2022. Moreover, due to Counterpoint’s “Emerging Technology Opportunities Service” report,
by 2025, eSIM-based phone shipments are expected to reach nearly two billion units, up from 364 million in 2018.

So, it is not a dream but rather a real smart technology to be undertaken.

Where Are eSIMs Available?

Growing from 10 countries enabling local eSIMs to over 40 countries is a radical change confirming the wide recognition of the eSIM technology. Nevertheless, the part that backs you from getting more excited has to do with the limited number of providers around the world supporting eSIM. In the US, for instance, Truphone and T-Mobile USA support it, but the list of US carriers is missing a big one: Sprint.

The increase in eSIM-enabled devices is gaining more networks to jump on board. This is a slow process, though. Since eSIM is directing its users into an easier world of connection, carriers are fluctuating to adopt this innovation because of the risk of losing customers and having to break into price wars over the best deals in a bid for market share.

What does the future of eSIM look like?

That the eSIM is on its way is no longer in question. They will power the future by:

  • Making things quicker: Nowadays, technology is making everything simpler and easier as nobody wants to do anything through a laborious process. This is one area where eSIM has a big role to play.
  • Connecting more devices: eSIM could eventually allow manufacturers to produce devices that are even smaller or slimmer than those currently available. This could also mean smaller tablets and laptops capable of connecting via the smaller eSIM. As Windows Central wrote, “The ability to take a PC or 2-in-1 wherever in the world you are and still have multiple ways to get on the internet is going to be critical for businesses, the modern nomadic millennial workforce, creators, those who are self-employed, and even regular consumers.”
  • With 5G connectivity set to radically alter mobile services, the eSIM will play an integral role. When 5G becomes standard, devices containing them will possess processing power that is incredibly robust and will rely on the eSIM to manage their connection.
  • Microsoft collaborated with global carriers to sell single-use data packages via the online Microsoft Store. Imagine buying 1 GB of data just like buying a game or an app. Then the store uses the eSIM to get you online with that one-click simplicity.

How Does Dual SIM Work on iPhone?

You’ve probably seen the term “Dual-SIM” before now while you were browsing Apple’s iPhone XS, XS Max and XR for 2018. Therefore, announcing such technology was profound, especially for the countries where eSIM is not supported yet. Still, you can enjoy having two phone numbers on one device; one for business, another for personal use. And when you travel abroad, it will be considerably easier and more convenient to use your own mobile.

Adding support for dual SIM and eSIM on iPhones is welcome news indeed! Yet, do they differ?

Essentially, both dual SIM and eSIM allow you to have two distinct plans on your iPhone 11, XR, and XS/XS Max. Moreover, both give you two phone numbers for calls and text messages. Another truth about both is that your iPhone can only use one data network at a time.

On the other side, the key difference is that an eSIM is a digital SIM integrated within your phone, while the dual SIM is having two physical SIM card slots. With eSIM, there’s no need for two SIM cards. Instead, your eSIM activates a mobile plan without the need of a physical SIM card.

On Whole

Once eSIM does become more omnipresent, which is inevitable in the near future, the true possibilities of what the technology can provide will be observed. ​Tell us about your impression of this technology, and whether it is worth trying or you still uncertain about taking a step towards this adventure. What do you think? Will this tech soon be the standard, or will it still take a while for everyone to move over to eSIM?

What are the devices supporting eSIM?

This list can change as more eSIM-compatible devices are released into the market. As of July 2020, the list of eSIM compatible devices are as follows:

  • iPhone 11
  • iPhone 11 Pro
  • iPhone 11 Pro Max
  • iPhone 12 Pro Max (to be launched in September)
  • iPhone XS
  • iPhone XS Max
  • iPhone XR
  • iPhone SE (2020)
  • iPad Air (3rd Generation)
  • iPad Pro (3rd Generation)
  • iPad Mini (5th Generation)
  • Samsung Galaxy Fold
  • Samsung Galaxy S20
  • Samsung Galaxy S20+
  • Samsung Galaxy S20 Ultra
  • Samsung Galaxy Z Flip
  • Samsung Note  20+
  • Nuu Mobile X5
  • Google Pixel 3 & 3 XL
  • Google Pixel 3a & 3a XL
  • Google Pixel 4 & 4 XL
  • Gemini PDA
  • Motorola Razr 2019
  • Huawei P40
  • Huawei P40 Pro
Windows 10
  • ACER Swift 3
  • ACER Swift 7
  • ASUS Mini Transformer T103HAF
  • ASUS NovaGo TP370QL
  • ASUS Vivobook Flip 14 TP401NA
  • Dell Latitude 7210 2-in-1
  • Dell Latitude 9410
  • Dell Latitude 7310
  • Dell Latitude 7410
  • Dell Latitude 9510
  • HP Elitebook G5
  • HP Probook G5
  • HP Zbook G5
  • HP Spectre Folio 13
  • Lenovo Yoga C630
  • Lenovo Miix 630
  • Lenovo Yoga 520
  • Lenovo Yoga 720 convertible laptops
  • Samsung Galaxy Book 2
  • Surface Go 2
  • Surface Pro X
  • Surface Pro 5 LTE Advanced

As device compatibility varies from country to country, please ensure your device is eSIM compatible.

Comments (2)

Pretty Interesting post. Could not be written any better. Thanks for sharing!


We are blown away by your positive words. Thank you! 😉

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