eSIM io sells prepaid mobile data for trips abroad. New users can enter code DXVHC41 before their first top-up and receive $3 credit.

Invitation link: we may receive account credit if you use it. Your $3 offer is not reduced.

How to get the eSIM io new user credit

  1. Open the invitation.

    Download eSIM io using the offer button above.

  2. Create your account.

    Do this before buying your first package.

  3. Enter the code.

    Go to My Account, choose Use Reference or Gift Code and enter DXVHC41.

  4. Make your first top-up.

    Choose suitable data for your destination and pay in the app.

  5. Check your balance.

    The $3 gift credit should be added automatically after the qualifying top-up.

How does a travel eSIM work?

An eSIM is a digital SIM stored on your phone. You install a travel data plan without removing your usual physical SIM. When you arrive, select the eSIM for mobile data and keep data roaming switched off for your normal UK line.

Most travel packages provide data only. WhatsApp and other internet calls still work, but you may not receive a new local telephone number.

Our eSIM io experience in Chile and Brazil

Denis used eSIM io in Chile and Brazil in 2026 after another eSIM stopped working. Buying a local plan was awkward because it required local identification and the available payment cards were not accepted.

eSIM io was easier to install, accepted payment through Revolut and did not ask for local identification. Coverage in the big cities used was reliable. It was not always the absolute cheapest local option, but the quick setup was worth paying a little more for.

Choose the smallest sensible package

  • Download offline Google Maps before leaving Wi-Fi.
  • Turn off automatic photo backups and app updates.
  • Use hotel or café Wi-Fi for video.
  • Check how many days the package remains active.
  • Compare the total cost with your UK network’s roaming pass.

Pros

  • Quick setup without a physical SIM.
  • $3 credit reduces the first cost.
  • Useful when a local SIM is difficult to buy.
  • No long contract.

Cons

  • Your phone must support eSIM.
  • Local SIMs can sometimes be cheaper.
  • Coverage and prices vary by destination.
  • Most plans are data only.

eSIM io questions

When should I enter code DXVHC41?
Enter it in My Account under Use Reference or Gift Code before making your first top-up. It may not be possible to add it to an existing purchase later.
Can I install the eSIM before travelling?
Yes. Installing it while you have reliable Wi-Fi is sensible. Read the package details first because some validity periods begin on installation and others begin when the eSIM first connects.
Can I keep my normal phone number?
Yes. Keep your normal SIM enabled for calls or messages and select eSIM io only for mobile data. Check your network’s charges before answering calls abroad.

Sources and checks