Travel eSIMs may need Data Roaming enabled to use the local networks included in the plan. Follow the instructions for your exact SimFuse eSIM.

## iPhone

Open Settings > Cellular or Mobile Data, select the SimFuse line and enable **Data Roaming**. Depending on iOS and the number of lines, the setting may be inside Cellular Data Options.

## Android

On Pixel, open Settings > Network & internet > SIMs, choose the SimFuse line and enable Roaming. On Samsung, check Connections > Mobile networks and SIM manager. Names and whether roaming is controlled per line vary by model.

If a roaming switch is not clearly tied to one SIM, first confirm which SIM handles mobile data. Do not enable roaming blindly on both lines.

## Test the travel line

Select SimFuse for mobile data, then test a small webpage with Wi-Fi off. Check that you are in the plan's coverage and that it has data and validity left.

Leave home-SIM roaming off unless you want it and know the cost. Data-roaming settings do not control every possible charge for calls and texts.