Embedded SIM (e-SIM) is the next step in the evolution of Subscriber Identity Modules (SIM cards).
They are designed to deliver unprecedented freedom and flexibility. Unlike the physical SIM, you do not need to insert an eSIM into your phone as it is already built into your smartphone, device or wearable.
eSIM: How will eSIM work in practice?
When you have a physical and eSIM provisioned and are connected to two separate networks, your iPhone will display both networks on the screen at the same time.
If the handset is in standby and both the SIM and eSIM are provisioned, customers will be able to receive calls and texts on both numbers. As you can see in the instructions below, you can then choose a “default” line that you make calls on, use SMS and that iMessage and FaceTime use. The other line is just for SMS and voice.
Alternatively, you can choose to Use Secondary for cellular data only – useful if you’re abroad and using a local data eSIM.
As for eSIM-only, we will have to wait and see how that works on the new iPhone 14. Currently, you can store more than one eSIM in your iPhone, but you can use only one at a time.
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To switch eSIMs, you can tap Settings > Cellular > Cellular Plans and then select the plan you want to use. If you are in the UK it’s Mobile Data > Turn On This Line.
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The iPhone 14 replaces physical SIM cards with eSIM.
How will eSIM work in practice?
Apple Event: iPhone 14, Apple Watch Series 8, Apple Watch Ultra, AirPods Pro 2nd generation Unveiled
How to use eSIM with a compatible iPhone
If you have a QR code:
1. Go to Settings > Cellular.
2. Tap Add Cellular Plan.
3. Use your iPhone to scan the QR code that your carrier provided – you may be asked to enter an activation code.
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Advantages of eSIM
eSIM is great for regular travellers
Theoretically, eSIM should mean that you could go to another country and simply add a roaming eSIM to your handset while retaining access to your main “home” number. That’s one of the disadvantages currently because, if you change SIMs abroad, for example, you can’t access your own number.
“eSIMs have the potential to eliminate roaming charges abroad”, says Truphone’s Steve Alder. “It also enables people to switch operators quickly to get connected if they’re in an area with no signal, frees up space for new features or additional battery life and could lower the risk of device theft.
“As consumers and operators begin to see the benefits, mass adoption of eSIMs will be inevitable.”
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