Getting a new phone or switching to a different mobile plan usually means dealing with a physical SIM card. With an eSIM, there is no small plastic card to insert or remove, but you still need to activate the digital SIM before you can use your mobile plan.
The activation process is usually straightforward, although the steps can look slightly different depending on your phone and carrier. Instead of inserting a physical SIM, you add the eSIM through your phone settings using a QR code or the activation details provided by your carrier.
To activate an eSIM, open your phone settings, go to Mobile Data or Connections, and choose Add eSIM. Scan the QR code from your carrier or enter the details by hand, then follow the prompts to install the plan. Finally, set the eSIM as your line for data, calls or both.
Once the plan is installed, checking your mobile data and call settings can help make sure the eSIM is active and ready to use.
What you need before you start
Before you start the eSIM activation process, it helps to have everything you need within reach. Nothing is more frustrating than getting halfway through setup and realising you are missing the activation details or your phone does not support eSIMs.
First, make sure your phone is compatible with eSIM technology. If you are unsure, check which phones support eSIM before you begin, as compatibility can vary by device, model and region. You will also need an eSIM plan from a carrier that supports eSIM activation.
Your carrier should provide either a QR code or activation details that you can enter manually. Keep these details available before opening your phone settings, as you may need them during installation.
With a compatible phone, a carrier eSIM plan and your QR code or activation details ready, you can move on to the activation process and install the eSIM on your device.
Also read: eSIM vs physical SIM: What is the difference?
How to activate an eSIM on iPhone: a step-by-step guide to installing your mobile plan
Activating an eSIM on your iPhone lets you connect to a mobile network without inserting a physical SIM card. Before you begin, make sure you have your carrier’s activation details or QR code ready and your iPhone connected to Wi-Fi.
1. Connect to Wi-Fi
Connect your iPhone to a stable Wi-Fi network before you begin. A reliable internet connection helps your device communicate with your carrier and complete the eSIM setup without interruptions. If you are activating a new iPhone, complete the device setup before adding your mobile plan.
2. Open Cellular Settings
Open Settings on your iPhone and tap Cellular or Mobile Service, depending on your region. Select Add eSIM, then choose the available activation option. Your iPhone may offer several methods, including transferring from another iPhone or using a QR code supplied by your carrier directly.
3. Scan the QR Code
Select the option to use a QR code if your carrier has one. Point your iPhone camera at the code and follow the prompts on screen. Depending on your carrier, you may need to confirm activation or enter details before the plan downloads as expected.
4. Label Your Plan
Once the eSIM has been added, give the cellular plan a clear label, such as Personal or Work, so you can identify it easily. If you have multiple lines, choose which number should handle calls, messages and mobile data, then finish the setup process completely.
How to activate an eSIM on Android
Learn how to activate an eSIM on your Android phone, from scanning your carrier’s QR code to downloading the mobile plan and completing setup.
Samsung Galaxy
- Open Settings and tap Connections.
- Select SIM manager, then choose Add eSIM.
- Tap the Scan QR code from the service provider and scan your carrier’s QR code.
- Follow the on-screen instructions to download the eSIM and complete activation.
Google Pixel
- Open Settings and select Network & Internet.
- Tap the + (Add) icon beside SIMs.
- Select Download a SIM instead?, then tap Next.
- Scan your carrier’s QR code and follow the prompts to download and activate your eSIM.
Motorola
- Open Settings, then select Network & Internet.
- Tap Mobile network, choose Advanced, and select Carrier.
- Tap Add carrier, then select Start to open the scanner.
- Scan your QR code and tap Done to complete eSIM activation.
Xiaomi / Redmi
- Open Settings and select SIM cards & mobile networks.
- Turn on Use eSIM, then tap Manage eSIM.
- Select Add mobile plan and scan your provider’s QR code.
- Tap Download and follow the prompts to install and activate your eSIM.
OnePlus
- Open Settings and tap Mobile network.
- Select eSIM and turn on the eSIM feature.
- Tap Add eSIM, then select Next to continue.
- Scan your carrier’s QR code and follow the on-screen instructions to complete the setup.
Activating an eSIM without a QR code or using two eSIMs
You may not always need a QR code to activate an eSIM. Depending on your carrier and Android phone, you may be able to enter the activation details manually or download the eSIM through your carrier’s app. Manual activation typically requires information such as an activation code or SM-DP+ address provided by your carrier. If your carrier supports app-based activation, download its official app, sign in, and follow the instructions to add your mobile plan. The exact steps can vary by carrier and Android device.
Some Android phones also support two eSIMs, allowing you to keep two mobile plans on one device. This can be useful if you want to separate personal and work numbers, use different carriers when travelling, or keep a local plan alongside your main number. Your phone must support multiple active eSIMs, and the exact options vary by model. Check your device’s SIM settings to see whether you can add and manage more than one eSIM.
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Get a Grey eSIM and stay connected across 100+ countries
With a Grey eSIM, you can stay connected while travelling across more than 100 countries without worrying about traditional roaming charges. You can purchase a data plan through the Grey app, select your destination, choose the plan that suits your trip, and complete the payment.
Once you have purchased your plan, install the eSIM on your compatible phone and follow the activation steps for your device. After activation, turn on the eSIM for mobile data and make sure data roaming is enabled for the Grey line where required. Your plan will then connect to a supported local network when you arrive.
The Grey app also makes it easier to hold and spend multiple currencies while you travel. You can manage your available balances, exchange currencies when needed, and use your Grey card for eligible purchases, giving you more flexibility when moving between countries. Download the Grey app to get started
Frequently asked questions about activating an eSIM card
How do I activate an eSIM?
Open your phone’s Settings and find the Cellular, Mobile network, or SIM manager menu. Select Add eSIM or the equivalent option, then follow your carrier’s instructions. You may need to scan a QR code or enter activation details manually.
Do I need a QR code?
A QR code is the most common way to activate an eSIM, as carriers typically provide one with your plan. However, some devices and networks also support manual activation, allowing you to enter details such as an activation code or SM-DP+ address.
Can I activate an eSIM without Wi-Fi?
You generally need an internet connection to download and activate an eSIM profile. Wi-Fi is usually the simplest option, although some devices may allow activation using mobile data. Check your carrier’s instructions before starting, especially when travelling without an active connection.
How long does activation take?
eSIM activation usually takes only a few minutes once you have downloaded the digital profile. However, the exact time depends on your carrier, device, and network. If your eSIM does not connect immediately, restart your phone and check that the correct line is enabled.
Can I move an eSIM to a new phone?
You can move an eSIM to another compatible phone, but the process depends on your carrier and device. Some phones support direct eSIM transfer, while others require you to deactivate the old profile and request a new activation code or QR code.
How do I get a Grey eSIM?
Open the Grey app, go to the Lifestyle section, and select eSIM. Choose your destination country and the data plan that suits your trip, then complete your purchase. Download the eSIM to your compatible device and follow the activation instructions.





