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What is an eSIM and How Does It Work?

Jony AhmedJony Ahmed
Oct 7th 2024 |

eSIM Guides

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Gone are the days when you needed to remove a SIM card and then put another one in to switch carriers. With the blessing of technology, we’ve seen something extraordinary with mobile SIMs. Yes, we are referring to eSIM, the invisible one mounted on the chip of your mobile device. 

There has been enough discussion on the benefits of eSIM over physical SIM. This makes sense as people are eager to explore new technology every single day. Are you looking for an eSIM activation?

We appreciate your decision if the answer is yes. But make sure you know enough about technology before making a final call. 

Today is the day. Yes, you will learn everything about eSIM, from its mechanism to why you should choose one. Let’s explore. 

Key Takeaways: 

  • eSIM is an embedded SIM technology that remains built-in on the device’s chip.
  • It was first introduced in 2010 and has gained popularity since its introduction in 2018.
  • eSIM allows easy carrier switching without replacing a traditional SIM card.
  • Not all mobile devices are compatible with eSIM, so checking compatibility before activating is important.
  • To get an eSIM, a QR code is required for activation.

What Is an eSIM and How Does It Work?

Technically speaking, eSIM refers to embedded SIM cards. Now, let’s become more realistic. eSIM is mobile SIM technology that remains built-in on the chip of your device. Unlike the physical SIM card, eSIM doesn’t require a dedicated SIM slot to connect with the mobile phone. 

The concept of eSIM first came to light back in 2010. We’ve seen the introduction of eSIM in both Android and iPhone in 2018. Since then, eSIM has gained immense popularity. A large number of people now want to know how to activate eSIM on iPhone and Android devices.

What Is an eSIM and How Does It Work?

For a traditional SIM card, you need to replace it in order to shift to another carrier. But in the case of eSIM, you are free from that hustle. You can easily move from one carrier to another career with the same eSIM. 

But can all mobile devices be compatible with eSIM?

No. So, it makes sense to check eSIM compatible phones before you attempt to activate them on your mobile device. But mobile companies tend to bring the eSIM features in almost all the latest versions of their phones. Hope your phone supports the features.

Let’s assume your mobile device supports eSIM. Is this enough to activate eSIM? No. How to get an eSIM, then? You need a QR code for eSIM activation. And once you have the code, you can activate eSIM on your device. 

What Are the Benefits of eSIM?

You have learned enough about what an eSIM is and how it works. Then, you may start thinking about the benefits eSIM can bring to you. Then again, here is why you might shift to eSIM from the physical SIM card. 

Convenience and Ease of Use

Do you think removing and then inserting a physical SIM card on your phone is troublesome? We wonder how convenient an eSIM is! You don’t need to insert an eSIM, as it is built-in on your phone’s motherboard. 

What about switching to multiple networks, then? 

As there is no physical presence of eSIM on your phone, there’s no question of replacing it when switching to multiple networks or carriers. Rather, you can switch to multiple profiles on a single eSIM profile. 

So, from convenience and ease of use, doesn’t eSIM seem more beneficial than the physical one? No rush; take your time! 

Improved Security

You lost your mobile phone and are now wondering what the theft might do. First, they might remove your SIM card so that you can’t connect to your phone. 

Thank God! You are completely free from that worry if you use eSIM. As it is physically invisible, no one can access and damage or destroy it. So when it comes to unauthorized access, eSIM reduces the chance. 

On the flip side, you can easily track your mobile (if stolen) with the help of an IMEI number on your mobile device

A Good Choice for International Travel

Thinking about convenience, eSIM cards for international travel are something you’ll find more than helpful. As you know, eSIM can eliminate the need for physical SIM cards and allow for easy switching between different carriers. You can always choose the most suitable plan, regardless of the location you are in. 

The bottom line: International roaming is perfectly on the card with eSIM. You also don’t need to think about the roaming fees. 

Tired of roaming woes? Looking for an eSIM that’s got your back everywhere you go? Check Pirate Mobile. We’ve got you covered. When it comes to quality service, affordability and transparency, we never compromise.

Let’s come back to where we were. 

Difference Between eSIM and Physical SIM Card

Are you confused about whether to use eSIM or the traditional SIM card? Here’s a complete breakdown you’ll find helpful in comparing the two technologies; 

Comparison Points eSIMPhysical SIM Card
Activation Process Remote activation Need to insert a SIM card to activate 
Portability Built-in on the motherboard of mobile devices. Requires physical swap
Chances of Susceptible to Physical DamageNoYes
Travel Friendly Yes No
Availability Not all mobile devices For all mobile devices
Use CasesIdeal for IoT devices, smartphones with multiple SIM profiles, and travelersSuitable for general smartphone use

Final Thoughts 

We should adopt new technology, and when it is connected to an essential device like the mobile phone you have in your hand, this makes more sense. Determine what is your utmost priority and if you think eSIM can add value, why not choose one then?

Don’t feel shy sharing this blog if you find anything helpful. 

FAQs

Does an eSIM Use Your Phone Number?

When shifting from one network to another, eSIM doesn’t change your phone number. This means your phone number remains the same regardless of the carrier you choose. There are modern phones that allow you to use both physical and eSIM at the same time. The phone number for eSIM is rather included in the data package.

Can I Use WhatsApp with eSIM?

You can also use other apps that are connected to SIM, not only WhatsApp. As we know, we need to use our phone number to use WhatsApp. With eSIM, as you do have the phone number, there’s no point in eSIM becoming incapable of using WhatsApp. Ensure that your eSIM has an active data plan for using WhatsApp. If you’re using a travel eSIM, check the data coverage in your location.

Can I Use a Normal SIM With eSIM?

Not with all the devices but you can use eSIM and normal (traditional) SIM at the same time. Make sure your mobile device supports the feature or not.  You can utilize your primary SIM card for calls and messages while using the eSIM for data.