• Tech Harry

What is an eSIM and why would you need one?

The humble SIM is going high-tech, and 'e' could mean 'exciting'

eSIMS are already used in flagship phones and some devices are throwing out their physical SIMS to embrace the inevitable eSIM future. 

There a number of high-end smartphones along with tech rather than opt for a physical SIM and it's likely we'll be seeing more do that in future.

So what really even is an eSIM and how does it change how you use your phone? Does your phone have one? Should you care? We've collected all your likely questions below:

What is an eSIM anyway?

An eSIM – short for Embedded Subscriber Identity Model – is a digital version of the SIM card that you use to connect your phone to your network provider. It’s a chip inside your phone that can be reprogrammed to suit whatever network you want to use.

Think of it like the NFC chip you use for contactless payments, which works with whatever bank you bank with. An eSIM is the same, but it's designed for connecting you to your phone network.

What phones use eSIMs?

Apple introduced eSIM support in the iPhone XR and iPhone XS (as well as in the Apple Watch 4 and iPad Pro range) while Google did the same with the Pixel 3 and Pixel 3 XL.

Samsung’s Galaxy S20 range, Galaxy Flip Z and Galaxy Fold all also have eSIM support. Those devices all use eSIMs as a dual-SIM option, but the Motorola Razr is eSIM-only: it doesn’t use a standard SIM at all. 

Some laptops have eSIMs too, as well as some tablets but these are few and far between.

What networks support eSIMs?

Networks all over the world now support eSIMs. For example in the US, eSIMs work with AT&T, T-Mobile USA and Verizon Wireless.

In Australia you can connect to Optus, Telstra, Truphone and Vodafone, while in the UK there’s EE and O2. Vodafone also offers eSIM support in the UK, but so far only for the Apple Watch and some Samsung smartwatches. In addition to local providers, some worldwide providers also support eSIM. You'll want to look at Truphone, Ubigi, GigSky,, MTX Connect, Readtea Mobile and Soracom mobile.

What are the benefits of eSIMs?

Most of us using Physical SIM, We know, It can get damaged, Sometimes, It may struggle between selecting Bandwidth. If you have multiple SIM cards, You have to Take out the Inserted SIM and Put the new SIM every time. This new technology is Invented to eliminate all these struggles. eSIMs have a lot of benefits. Google already using this technology in its Project Fi Mobile Network and its Pixel mobile series. But, It started becoming more popular after the launch of the iPhone XS series. It is the next-generation SIM technology that will be adopted by many smartphone manufacturers. eSIM stands for Embedded SIM, and it is smaller than traditional sims being used at the moment.

Is eSIM an industry standard?

It is. eSIM is a global specification from the GSM Association, the industry organisation that represents the world’s mobile network operators. 

eSIM is the only globally-backed remote SIM specification, so you don’t need to worry about a VHS/Betamax situation where there are competing and incompatible standards.


Brings Technology To Life



© 2020-2021 BY TECH HARRY.