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Getting Started with eSIM
An eSIM is a digital SIM built into many newer smartphones and devices. Instead of inserting a physical SIM card, you can install a mobile data plan digitally and connect to supported cellular networks while you travel.
After purchasing a OneRoam plan, you install the OneRoam eSIM on your compatible, carrier-unlocked device. Once activated and connected to a supported network, your phone uses the OneRoam eSIM for mobile data while you travel.
Yes. Your phone must be both eSIM-compatible and carrier-unlocked to use OneRoam.
A phone can support eSIM technology but still be locked to a mobile carrier. If you are unsure whether your phone is unlocked, contact your current mobile carrier before purchasing a plan.
We recommend confirming both eSIM compatibility and unlocked status before you travel.
You can check your device status using the steps below.
On iPhone:
- Open Settings.
- Tap General.
- Tap About.
- Scroll down to Carrier Lock.
If you see “No SIM restrictions,” your iPhone is unlocked and can use a OneRoam eSIM. If you see a carrier name or another message, contact your mobile carrier to confirm your phone’s unlock status and request an unlock if eligible.
On Android:
The steps vary by phone manufacturer and carrier. One simple way to check is:
- Open Settings.
- Go to Connections, Network & Internet, or Mobile Network.
- Look for an option to add an eSIM or select another mobile network.
Because Android menus and carrier-lock indicators vary by device, the most reliable way to confirm that your phone is unlocked is to contact your current mobile carrier.
Most newer smartphones support eSIM, but compatibility varies by manufacturer, model, country of purchase, and carrier.
Use the OneRoam device compatibility checker before purchasing your plan.
Important: A phone can support eSIM technology and still be locked to a carrier. Before purchasing a OneRoam plan, confirm that your device is both eSIM-compatible and carrier-unlocked. You can contact your carrier directly to see if your phone can be unlocked prior to making a purchase.
