Does the Samsung Galaxy S21 Plus 5G support eSIM?
Yes, the Samsung Galaxy S21 Plus 5G supports eSIM on most models sold globally. Samsung enabled eSIM functionality on the S21 series, including the Plus variant, through software updates and hardware support. However, eSIM availability depends on your specific model and carrier.
Samsung Galaxy S21 Plus 5G eSIM compatibility
The Galaxy S21 Plus 5G (model SM-G996) supports eSIM in most regions, including devices sold in the United States, Europe, and many other markets. Carrier-locked or region-specific models may have restrictions—some carriers initially disabled eSIM via software, though many have since enabled it through firmware updates.
To confirm your device supports eSIM, check your IMEI status in Settings. Go to Settings > About phone > Status information and look for an EID (eSIM identifier) entry. If you see a 32-digit EID, your Galaxy S21 Plus 5G has eSIM capability.
Dual SIM functionality: eSIM and physical SIM
The Samsung Galaxy S21 Plus 5G supports dual SIM through one physical nano-SIM slot and one eSIM. You can use both simultaneously, assigning one line for calls and another for data. The device does not support dual eSIM—you're limited to one eSIM profile active at a time, though you can store multiple eSIM profiles and switch between them in Settings.
How to set up an eSIM on the Samsung Galaxy S21 Plus 5G
Setting up an eSIM on your Galaxy S21 Plus 5G takes about 60 seconds once you have your QR code from your carrier or eSIM provider. You'll need a Wi-Fi connection for the initial download.
Step-by-step eSIM activation
- Open Settings and tap Connections.
- Tap SIM card manager (or SIM manager on some firmware versions).
- Tap Add mobile plan or Add eSIM.
- Tap Scan carrier QR code and position your camera over the QR code provided by your eSIM provider.
- Tap Add to confirm the download. The eSIM profile will install in approximately 30–60 seconds.
- Once installed, tap the new line and assign a label (e.g., "Travel" or "Work") to distinguish it from your physical SIM.
- Choose which line to use for mobile data, calls, and messages in SIM card manager.
Manual activation if QR code won't scan
If your camera can't read the QR code, tap Enter activation code manually in step 4 above. Your eSIM provider will give you an SM-DP+ address and activation code to paste into the fields. Follow the same confirmation steps to complete installation.
Using a travel eSIM on the Samsung Galaxy S21 Plus 5G
A travel eSIM gives you local data rates abroad without paying international roaming fees on your home carrier. Instead of hunting for a physical SIM card at the airport, you install a data plan digitally before you leave.
Why install your eSIM before departure
Install your travel eSIM while you're still connected to Wi-Fi at home. The eSIM profile downloads and stores on your device but remains inactive until you enable it. When you land, turn on the eSIM line in SIM card manager, enable data roaming for that line, and you'll have data immediately—no SIM swaps, no searching for a carrier store.
Your physical SIM stays in the slot, so you can still receive calls and text messages (including two-factor authentication codes) on your home number. Simply set your travel eSIM as the default data line, and your Galaxy S21 Plus 5G will route internet traffic through the local plan while keeping your primary number active for voice and SMS.
You can browse eSIM plans for over 200 countries and regions, comparing data allowances to find the right fit for your trip.
Tips and troubleshooting
Enable data roaming for your eSIM line
Even though your travel eSIM is a local plan, Samsung treats it as a secondary line that requires data roaming to be switched on. Go to Settings > Connections > Mobile networks, select your eSIM line, and toggle Data roaming on. This won't trigger roaming charges—you're using a local data plan.
Keep your home SIM active for calls and authentication
Leave your physical SIM enabled for voice calls and texts. In SIM card manager, set your home SIM for "Calls" and "Text messages," and set your eSIM for "Mobile data." This setup ensures you don't miss important calls or verification codes while using affordable local data.
What to do if the QR code won't scan
If your camera struggles with the QR code, increase screen brightness on the device displaying it or try printing the code. Alternatively, use the manual activation method described above. Ensure your Galaxy S21 Plus 5G has the latest software update—early firmware versions on some carrier models had limited eSIM support that was fixed in updates.
If you've confirmed your device has an EID but still can't add an eSIM, contact your carrier to verify they haven't restricted eSIM functionality on your account. You can also check another device's eSIM compatibility if you're considering a different phone, or visit eSIM setup help for additional troubleshooting.
Switching between eSIM profiles
The Galaxy S21 Plus 5G stores multiple eSIM profiles but only activates one at a time. To switch, go to SIM card manager, tap the inactive eSIM, and toggle it on. The previous eSIM will deactivate automatically. This makes it easy to swap between work and travel plans without reinstalling.


