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Does the OnePlus 12 support eSIM?
Yes, the OnePlus 12 supports eSIM—but only on global models. If you purchased your device in North America, Europe, India, or most international markets, your OnePlus 12 includes eSIM functionality. The Chinese variant (model CPH2581) does not support eSIM, so you'll need to verify your model number before purchasing an eSIM plan.
OnePlus 12 eSIM compatibility by region
The global OnePlus 12 (model CPH2583 and similar regional variants) supports dual SIM: one physical nano-SIM plus one eSIM, or two eSIMs if you choose not to use the physical slot. You can have multiple eSIM profiles stored on the device, but only one eSIM can be active alongside the physical SIM at any given time. This dual-SIM capability makes the OnePlus 12 a solid choice for travelers who want to keep their home number active while using a local data plan.
If you bought your OnePlus 12 in China or imported a Chinese model, it will not have eSIM support. Check your device's model number in Settings → About device to confirm. Canadian, U.S., and European buyers typically receive eSIM-enabled units without issue.
How to set up an eSIM on the OnePlus 12
Setting up an eSIM on your OnePlus 12 takes about 60 seconds once you have your QR code from your carrier or eSIM provider. You'll need a Wi-Fi connection to complete activation, and your device should be running the latest OxygenOS software update for the smoothest experience.
OnePlus 12 eSIM activation steps
- Open Settings and tap Mobile network (or SIM & network depending on your software version).
- Tap SIM card management or Add eSIM.
- Select Add mobile plan or Download a SIM instead?
- Tap Scan QR code and point your camera at the QR code provided by your eSIM carrier.
- Confirm the plan details and tap Add.
- Once the eSIM downloads, label it—"Travel," "Work," or the country name—so you can easily identify which line to use for data or calls.
- Enable the eSIM line and set your preferred line for mobile data in the SIM settings menu.
If your eSIM provider sends an activation code instead of a QR code, select Enter activation code manually in step 4 and type in the SM-DP+ address and activation code.
Set up an eSIM in Settings
After activation, you'll see both your physical SIM and eSIM listed under Mobile network settings. Toggle each line on or off, choose which one handles mobile data, and assign a default line for voice calls. The OnePlus 12 lets you customize labels and colors for each SIM, which helps when you're managing a home line and a travel eSIM at the same time.
Using a travel eSIM on the OnePlus 12
A travel eSIM is the easiest way to get mobile data abroad without paying roaming fees. Instead of hunting for a physical SIM card at the airport or dealing with your home carrier's expensive international add-ons, you install an eSIM before you leave and land with connectivity already active.
Install your eSIM before you fly
Most travel eSIMs activate when your device detects the destination network, so you can complete the setup at home on Wi-Fi. Once you arrive, your OnePlus 12 will connect automatically. You keep your physical SIM active for calls and text messages (and two-factor authentication codes), while the eSIM handles data. This setup avoids roaming charges on your primary line and gives you local data speeds.
You can browse eSIM plans for over 200 countries and regions, compare data allowances, and install your eSIM in minutes. Many travelers install the eSIM a day or two before departure to confirm everything works, then simply turn on the eSIM line when the plane lands.
Tips and troubleshooting
Most OnePlus 12 eSIM activations go smoothly, but a few settings and common issues can trip you up. Here's what to check if your eSIM isn't working as expected.
Turn on data roaming for the eSIM line
Your OnePlus 12 treats the eSIM as a separate line, so you need to enable data roaming for that specific SIM. Go to Settings → Mobile network → [your eSIM name] → Roaming, and toggle it on. This won't trigger roaming fees on your eSIM plan—it simply allows the eSIM to connect to the local network abroad. Keep roaming off for your home physical SIM to avoid surprise charges.
Keep your home SIM active for calls and 2FA
Leave your physical SIM enabled (but with data and roaming turned off) so you can still receive calls, SMS, and verification codes on your regular number. Set the eSIM as your data line, and your OnePlus 12 will route internet traffic through the travel eSIM while calls and texts come through your home carrier over Wi-Fi calling or a minimal roaming connection.
Fix an eSIM that won't activate
If the QR code won't scan, check that your camera lens is clean and the lighting is adequate. You can also enter the activation code manually if the scan fails repeatedly. If the eSIM downloads but won't connect, restart your OnePlus 12, confirm the eSIM line is toggled on in SIM settings, and verify that data roaming is enabled for that line. Some users on Reddit report that toggling airplane mode on and off can force the device to re-register on the network.
If you're still stuck after trying these steps, your eSIM provider's support team can reissue the QR code or confirm that the profile installed correctly. You can also check another device's eSIM compatibility if you're troubleshooting across multiple phones, or visit our eSIM setup help for additional guidance.
OnePlus 12 eSIM not working on Chinese models
If you have a Chinese OnePlus 12 (CPH2581), eSIM functionality is not available due to regional restrictions. You'll need to use a physical nano-SIM for all connectivity. If you frequently travel and want eSIM support, consider a global model or verify the model number before purchase.
