Yes, the Samsung Galaxy S21 supports eSIM — except for the S21 FE, which does not. Below, you’ll find how to check compatibility, install your HOLASIM eSIM, and ensure a smooth activation process.
How to check if your Samsung Galaxy S21 supports eSIM
You can verify your phone’s eSIM compatibility through the settings menu or by dialing *#06#.
Check from your phone’s settings:
Go to Settings > Connections > SIM Manager.
If you see the option Add eSIM or Add data plan, your Galaxy S21 supports eSIM. You can install your HOLASIM eSIM one day before your trip.
Check using the *#06# code:
Open the Phone app > Keypad > Dial *#06#.
If an EID number appears on your screen, your Samsung Galaxy S21 is compatible with eSIM.
Key points before installing your eSIM on Samsung Galaxy S21
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Depending on where your phone was manufactured, some Galaxy S21 models may not support eSIM. Verify compatibility before installation.
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Install your HOLASIM eSIM a day before your trip and activate it upon arrival at your destination.
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Use a stable, private Wi-Fi connection — avoid public networks during setup.
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If the QR code doesn’t work, try the manual installation method.
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The Galaxy S21 can store multiple eSIM profiles, but only one can be active at a time.
Troubleshooting eSIM activation issues on Samsung S21
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If your S21 is carrier-locked, contact your provider to unlock it before using an eSIM.
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If the QR code doesn’t scan, ensure your Wi-Fi connection is strong or use the manual entry option instead.
