Help & guides
Travel

Prepare your phone for travel

A practical checklist for choosing your data SIM and understanding roaming before you leave.

By Forge Editorial Reviewed 9 September 2026 3 min read

Before departure

  1. Check your main plan’s destination coverage, roaming allowance and charges.
  2. If buying a travel eSIM, confirm the countries covered, data allowance, validity and when the validity starts.
  3. Check device compatibility, then install when the package instructions recommend, using a reliable internet connection.
  4. Save the order reference and make sure you can sign in to Forge while away.

Choose which SIM does what

A travel data plan does not automatically replace your usual phone number. On a compatible dual-SIM device, choose the travel line for mobile data and decide whether to keep the main line enabled for calls and texts.

Keeping the main line enabled can still incur charges. Turning off data roaming on that line does not block all call, text or other roaming charges. Check its terms or turn the line off if you do not need it.

At your destination

  1. Enable the travel eSIM and select it for mobile data.
  2. Use the data-roaming setting required by that travel package.
  3. Review any automatic data-switching setting so the phone does not unexpectedly use your main line for data.
  4. Test a small webpage with Wi-Fi temporarily off, then check which SIM is providing the connection.

When you get home

Set your normal line back as the mobile-data SIM and check its settings. Turn off the travel line if you no longer need it. Keep its profile until you are sure you will not need it again; reinstalling the same eSIM may require support.

Open your travel services

Device guidance & sources

Next step

Still need help?

Tell us the affected service, what happened and what you have tried. We will help you work through the next step.

Contact Forge support

More Forge guides

Information is general guidance, not a guarantee of service availability or network performance. Mobile coverage, roaming, plan features and pricing can change. Check the current plan details and coverage for your circumstances before purchasing. Editorial content last reviewed 2026-09-09.

Your cookie choices

Forge uses essential technologies to run the site securely. With your permission, we also use analytics to understand how the site is used and improve it.

Read our Cookie Policy