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Does the OnePlus 15 support eSIM?
Yes, the OnePlus 15 supports eSIM functionality on global models. OnePlus introduced eSIM support starting with this generation, marking a significant shift for the brand's flagship devices.
OnePlus 15 eSIM compatibility by region
The OnePlus 15 sold in most international markets includes eSIM capability. However, availability depends on your region and carrier support. Models sold in China typically ship without eSIM functionality, while European, North American, and other global variants include the feature. Check your device's specifications or the box documentation to confirm your specific model supports eSIM before purchasing an eSIM plan.
Dual SIM configuration
The OnePlus 15 offers flexible dual SIM options. You can use one physical nano-SIM alongside one eSIM profile simultaneously, giving you two active lines. This setup works well if you want to keep your primary number on a physical SIM while adding a travel eSIM for data abroad. The device does not support dual eSIM operation—you'll need at least one physical SIM slot occupied if you want to run two lines at once.
How to set up an eSIM on the OnePlus 15
Installing an eSIM profile on your OnePlus 15 takes about sixty seconds once you have your QR code ready. Most eSIM providers email you a QR code immediately after purchase, though some send activation details through their app.
Set up an eSIM in Settings
- Connect your OnePlus 15 to Wi-Fi before you begin.
- Open Settings and tap Mobile network (or SIM cards & mobile networks, depending on your OxygenOS version).
- Tap Add eSIM or the + icon to add a new profile.
- Select Scan QR code and point your camera at the QR code from your eSIM provider.
- Confirm the details and tap Add to download the profile.
- Once installed, label the line—for example, "Travel" or "Work"—so you can identify it easily.
- Choose which SIM to use for mobile data, calls, and messages in the SIM settings menu.
Activate and manage your eSIM lines
After installation, the eSIM profile appears alongside your physical SIM in the mobile network settings. You can toggle each line on or off, assign one for data and another for calls, or switch your default data line depending on which network offers better coverage. The OnePlus 15 remembers your preferences, so you won't need to reconfigure every time you restart the device.
Using a travel eSIM on the OnePlus 15
Travel eSIMs let you get mobile data in another country without paying roaming fees to your home carrier. Instead of hunting for a local SIM card at the airport, you install a travel eSIM before your flight and land with data ready to go.
Install before you travel
Purchase and install your travel eSIM while you're still at home and connected to Wi-Fi. The profile sits dormant on your OnePlus 15 until you arrive at your destination and turn it on. This approach saves you from scrambling for connectivity in an unfamiliar airport or dealing with language barriers at a local phone shop. You can browse eSIM plans covering hundreds of countries and regions, often with data-only packages that work alongside your existing number.
Keep your home number active
With dual SIM capability, you can leave your home physical SIM active for calls and text messages while routing mobile data through the travel eSIM. This setup means you'll still receive two-factor authentication codes and important calls on your regular number without incurring data roaming charges. Just make sure to disable data roaming on your home SIM and enable it only on the travel eSIM line.
Tips and troubleshooting
Most eSIM installations on the OnePlus 15 complete without issues, but a few common pitfalls can slow you down or prevent activation.
Enable data roaming for the eSIM line
Travel eSIMs require data roaming to be turned on, even though you're not technically "roaming" in the traditional sense that racks up fees. After installing your eSIM, go to Settings > Mobile network, select your eSIM line, and toggle Data roaming on. Your OnePlus 15 treats the eSIM as a separate carrier, so roaming must be enabled for it to connect to local networks abroad.
QR code won't scan
If the camera won't read your QR code, try increasing screen brightness on the device displaying the code, or print the QR code on paper for better contrast. Alternatively, most eSIM providers include a manual activation code alongside the QR. In the Add eSIM menu, select Enter activation code manually and type in the string provided by your carrier. You can also find eSIM setup help if you run into persistent errors.
Keep your home SIM for calls and texts
When you add a travel eSIM, the OnePlus 15 lets you choose which line handles calls, messages, and data. Set your home SIM as the default for calls and SMS so you don't miss important communications, and assign the travel eSIM for mobile data only. This configuration keeps your primary number reachable while avoiding roaming data charges.
Check eSIM compatibility before you buy
Not all OnePlus 15 units support eSIM. If you purchased your device in a region where eSIM was omitted, the option to add an eSIM won't appear in Settings. You can check another device's eSIM compatibility if you're considering a different phone, or confirm your OnePlus 15 variant on the manufacturer's specification sheet. Carrier compatibility also matters—your mobile operator must support eSIM provisioning for the feature to work.
