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What is an eSIM and can you get one on your phone?
Over the years, we’ve all grown used to those fiddly little SIM cards that are a necessary part of any phone.
Should you lose one or break it while switching to a new device, it’s a huge hassle – you need a replacement sent by your provider, which can take a few days and mean you’re without your phone number.
However, these inconveniences may soon become a thing of the past, as eSIM technology is fast becoming the industry standard.
Starting with the iPhone 14 series in 2022, Apple's smartphones haven’t included a physical SIM card slot in the US. Android phones all still have it, but many offer an option for eSIM. Which begs the question…
What is an eSIM?
An eSIM stands for ’embedded SIM’ and serves as a digital substitute for traditional physical SIM cards, akin to how eBooks replace physical books and eTickets enable mobile boarding without needing printed tickets.
How can I get an eSIM?
In the UK you can request an eSIM from carriers such as EE, O2, Vodafone and Three, while the US customers can use AT&T, Verizon and T-Mobile.
Some MVNOs, or piggyback networks as they’re often known, offer eSIMs – but not all.
If you’re uncertain about your carrier’s compatibility with eSIM, many providers offer online tools to determine compatibility.
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To see what other benefits these companies have to offer in the UK, check out our guide to the best UK phone networks.
How does an eSIM work?
Setting up an eSIM on compatible phones involves either pre-configuration by the provider or scanning a QR code provided in an eSIM pack.
The QR code is scanned with the device, connecting to the web to download eSIM information directly into the phone’s chip, eliminating the need for physical SIM cards or trays.
Stock Foto.Touch / Shutterstock
There’s also dual-SIM phones that allow you to have a physical SIM card from one phone network and an accompanying eSIM from another, with the option to switch between them manually.
This could come in handy if you travel abroad a lot or visit areas with poor coverage on certain networks.
What phones support an eSIM?
eSIM adoption in phones has been slow due to delayed acceptance by international carriers, leading manufacturers to include both physical SIM slots and eSIM capability. Flagship phones from companies like Apple, Google and Samsung were early adopters, but eSIM support is now extending to mid-range phones as well.
The most affordable eSIM models currently around are the iPhone SE 2022, Google Pixel 7a and Samsung Galaxy A54 5G, but there are several other mid-range phones that also support the technology.
Additionally, eSIM support is also found in the best smartwatches such as the Apple Watch Series 9, the Google Pixel Watch 2 or the Samsung Galaxy Watch 6, as well as in other mobile devices such as tablets and laptops.
Why should I use an eSIM?
Despite being more limited than physical SIM cards in some ways, an eSIM offers some unique benefits.
If you like to move between providers regularly, an eSIM can make this easier, as there’s no need to wait for a physical card to arrive in the post before you can change networks – all it requires is scanning the new code into your device.
Of course, you’ll still need to ensure your old contract is fulfilled before you can switch, but doing so is easier than ever thanks to the text-to-switch initiative introduced in 2019 that also allows you to retain your phone number.
There’s also the benefit that the chip on your phone can store multiple eSIMs simultaneously, meaning you can have one for home and another for work or larger data use.
Tomek / Pixabay
However, aside from needing an up-to-date phone, those concerned with privacy will want to know that you can’t just remove an eSIM like you can a physical SIM, so it’s possible that cybercriminals could take advantage of this.
There is also the practicality of removing traditional SIM cards and putting them in another device, such as a basic phone, when you are at festivals or in the wilderness, where battery life is very valuable.
