If you have never used an eSIM and want to use it, welcome then! Over the past few years, eSIM has spread its use throughout the world, and gradually more and more phones are adapting to this technology. As a result, thousands of people are migrating from traditional SIM cards to eSIM.

First of all, let us know what an eSIM is.

What is eSIM?

An eSIM is an abbreviation for an Embedded Subscriber Identity Module. An eSIM is a device that combines a programmable chip with a digital identity that stores subscriber-identifying information as well as network authorization data. The hardware and software comprise the entire eSIM, which performs just like the standard physical SIM card.

This means:

  1. You no longer need to search for a SIM store to buy a sim card while traveling.
  2. You no longer need to pay a hefty roaming fee to your home provider.
  3. You can access data the moment you land in another country.
  4. You can even purchase an eSIM while on move.

What is the difference between a traditional SIM and an eSIM?

A traditional SIM card is external to your phone and can be interchanged between devices. On the other hand, eSIM card is built into your device and is internal to your phone. It makes the whole process digital, which makes connectivity more accessible and environmentally friendly.

What are the advantages of eSIM?

An eSIM makes it easier for users to switch mobile networks. Previously, you had to order a physical SIM card and then wait for it to arrive before inserting it into your phone, but now you can switch between networks with a phone call or online. You also don’t have to go on a hunt for a SIM ejector tool to remove the old SIM from the phone.

You can also temporarily change to another network. One eSIM can hold up to five virtual SIM cards. which gives you the option of quickly switching between different networks if you find yourself in a low-signal area.

It also makes it more convenient to switch to local networks while travelling without physically needing to insert a local SIM. Using a local mobile network while abroad will help you to save money as it is cheaper than paying hefty roaming charges. Not removing your SIM from your phone will also reduce the risk of losing your SIM.

eSIM allows you to have the same advantages as dual-SIM phones, which have two slots for external plastic SIMs. It obviously also gives you the advantage of having two phone numbers on one device.

This is very useful when you want one number for your personal use and another for business use, but you don’t want to carry an extra phone around with you. You’ll be able to receive calls and texts on both numbers all the time, and you’ll get the option to choose which SIM to use for making calls, sending texts, or using texts.

eSIM uses less physical phone space. One advantage of eSIM is that, in due time, they will negate the need for traditional SIM cards and their trays. Smartphone manufacturers could utilise this space to increase the phone’s battery size, or they could even add more features to a handset. eSIMs will also lead to fewer holes in a handset, which means more protection from dust, moisture, and dirt. So, it will cause fewer breakdowns.

What are the disadvantages of eSIM?

There are a few drawbacks to eSIM, which are:

  • If your phone stops working right now, then you can easily remove the SIM and put it in another phone, but if you have an eSIM, then it won’t be the same case as it can't be removed from your phone.
  • Cannot be used in countries that do not support eSIM: eSIM phones cannot be used in countries where the carrier does not yet support the technology. This isn't a problem if your phone supports both an eSIM and a traditional SIM, but it does matter for devices like the US iPhone 14, which relies solely on eSIM.


October 29, 2022 — Gaurav Khanna