Galaxy S21 Ultra eSIM compatibility
Yes — the Galaxy S21 Ultra supports eSIM. Silent eSIM installs in under 60 seconds and works in 200+ countries.
Get an eSIM for my Galaxy S21 UltraGalaxy S21 Ultra specs at a glance
Note: Devices sold in China, Hong Kong, Taiwan and Macao have no eSIM.
Install Silent eSIM on Galaxy S21 Ultra
- 01 Top up your balance with crypto or card.
- 02 Open the camera on your Galaxy S21 Ultra and scan the QR.
- 03 Tap "Add eSIM" — the profile installs in under 60 seconds.
- 04 Land in any of 200+ countries; data connects automatically.
Galaxy S21 Ultra eSIM activation steps (Samsung (One UI))
- Connect to Wi-Fi.
- Open Settings, tap Connections, then SIM manager.
- Tap Add eSIM, then Scan QR code from service provider — or Enter activation code to paste it manually.
- Confirm the download, then name the profile in SIM manager.
- Set the Silent eSIM profile as your mobile data SIM and turn on Data Roaming for it.
Menu path per the manufacturer's own documentation: www.samsung.com.
Galaxy S21 Ultra eSIM questions
Does the Galaxy S21 Ultra support eSIM?
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Yes. The Galaxy S21 Ultra (released 2021) supports eSIM. Devices sold in China, Hong Kong, Taiwan and Macao have no eSIM.
How do I install Silent eSIM on the Galaxy S21 Ultra?
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Top up your balance, then on your Galaxy S21 Ultra: Connect to Wi-Fi. Open Settings, tap Connections, then SIM manager. Tap Add eSIM, then Scan QR code from service provider — or Enter activation code to paste it manually. Confirm the download, then name the profile in SIM manager. Set the Silent eSIM profile as your mobile data SIM and turn on Data Roaming for it. The profile installs in under 60 seconds — no ID, no account and no app to download.
Will I keep my normal number on the Galaxy S21 Ultra?
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Yes, as long as your existing line is on a physical SIM or is the Galaxy S21 Ultra's only eSIM profile. Keep it active for calls, texts and two-factor codes, and set Silent eSIM as the data line when you land.
Does the Galaxy S21 Ultra need to be unlocked?
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Yes. A carrier-locked Galaxy S21 Ultra can refuse a third-party eSIM profile. Phones bought outright are normally unlocked; if yours came from a carrier on a contract, ask them to unlock it before you travel.
Where does the Galaxy S21 Ultra work with Silent eSIM?
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In 200+ countries on the same profile. You pay the local per-GB rate from one prepaid USD balance, there is nothing to reinstall when you cross a border, and the balance never expires between trips.