Save money on your phone data abroad with an eSIM

eSIMs at London Stansted Airport | In partnership with CELITECH

With easy activation and no need to worry about swapping your SIM card, eSIMs provide a hassle free way to use your phone abroad. Simply scan a QR code or enter an activation code and you’ll automatically be online when your trip begins.

Save time and money with an eSIM.

What is an eSIM?

Instead of a physical SIM card, an eSIM is a digital SIM card. It lets you access multiple networks from one device, and everything from purchase to activation can be done on your mobile phone. There’s no need to wait for a SIM card to arrive in the post, or visit a store - it’s all done at the click of a button.

Benefits of eSIM

blue outline of a sun umbrella on a beach Perfect when travelling

blue outline of two arrow lines going horizontally and overlapping‎ Simple Switching

blue outline of a sim card‎ Dual Sim Support

blue outline of a secure shield symbol‎ Secure


eSIMs work by connecting to mobile networks whenever your device is in range. Switching between networks and countries is straightforward as your device will automatically connect you wherever you are.

The wireless capability is the main difference between a traditional SIM card and an eSIM. eSIMs are digitally activated by scanning a QR code or entering an activation code. You can switch between networks easily without the need for a contract, or swapping SIM cards.

Most devices from 2018 onward should have eSIM compatibility, but it is important to check that your device is compatible with an eSIM.

Yes, you can use both your primary SIM card and secondary eSIM card plan. This gives you dual SIM support.

First, please ensure that your device is eSIM compatible.

On iPhone

1. Make sure you’re connected to the Wi-Fi

2. Open the camera app and scan the QR code

3. Tap ‘Continue’

4. Tap ‘Done’ to start your eSIM setup

5. Select ‘Primary’ as default line for voice and SMS, then tap ‘Continue’

6. Tap ‘Continue’

7. Select "Business" for Mobile Data. Tap “Continue”. Other labels used for eSIM are: "Travel", "Secondary", and "Mobile Data"

8. After your eSIM setup is complete, make sure that your eSIM “Data Roaming” is turned ON by going to ‘Settings’ → ‘Mobile’ → ‘Business’, then activate Data Roaming

On Android

1. Make sure you’re connected to a Wi-Fi network

2. Open device settings and select ‘Connections’ or ‘Network & internet’

4. Select ‘SIM card manager’

5. Select ‘Add mobile plan’

6. Select ‘Scan carrier QR code’ and scan the QR code

7. When your plan is registered, select “OK” to turn on the plan, once activated your eSIM is viewable in the ‘SIM card manager’

9. Turn on eSIM under ‘Mobile Network’

10. Enable “Mobile Data” and “Data Roaming”

Mobile data use varies from one person to another and will depend on how much data you consume currently. On average, you may need the following:

For 1-3 days: 1GB

For 4-5 days: 2GB

For 6-9 days: 3GB

For 10-12 days: 5GB

For 12+ days: 8GB

Additional eSIM FAQs

Once an eSIM is issued for your trip, it cannot be cancelled or re-used. You may find CELITECH service terms here.

In certain cases when the device has multiple service providers, it needs a connection refresh or update. For more information about any issues with your eSIM, please see the CELITECH Help Centre.

No, CELITECH eSIM only offers mobile data service without a phone number. However, the eSIM allows you to use your mobile apps including calling & texting apps such as FaceTime, WhatsApp, iMessage, WeChat, etc.