You've run out of eSIM data in the middle of your trip. It's a panic-inducing moment that has a solution, but it requires knowing exactly what your options are and how to act fast. This guide covers all scenarios: with WiFi available, without WiFi, and in emergency situations.
How to know when you're running out
Most travel eSIMs have usage notifications. Activate them from the start:
| Method | How to use it |
|---|---|
| Provider's app | Install the app before you leave. Shows real-time data consumed and remaining |
| Provider's web panel | Access from a browser with your email and password — works even with hotel WiFi |
| iPhone: data settings | Settings → Mobile Data → last line shows usage statistics by period |
| Android: data monitor | Settings → Networks → Data Usage → select the eSIM |
| Operator's USSD | Some local operators respond to *100# or *123# with the remaining balance |
Your options when you run out
When your plan runs out, you have these options, ordered from most to least recommended:
| Option | Time | Cost | Needs WiFi |
|---|---|---|---|
| Recharge same plan (if provider allows) | 2–5 min | Normal | Yes |
| Buy new plan from same provider | 5–15 min | Normal | Yes (to install) |
| Buy plan from another provider | 10–20 min | Normal | Yes |
| Activate roaming data on Spanish SIM | Immediate | Very expensive | No |
| Hotel/cafe WiFi to manage | 10 min | Free | — |
| Buy local SIM | 30–90 min | Variable | No |
Recharge with the same provider
If your travel eSIM allows top-ups (not all providers offer them), it's the fastest solution:
- Connect to hotel, cafe, or airport WiFi
- Access your provider's web panel or app
- Look for the "Recharge," "Top up," or "Add data" option
- Select the amount of GB and complete the payment
- Data is automatically added to your active plan in minutes
Advantage: you don't need to install anything new. The data is simply added to the existing plan and is available immediately.
Install another plan without WiFi
If you don't have WiFi available and your plan has run out, you need connectivity to install a new plan. Here are the strategies:
- Companion's hotspot: if you're traveling with someone, use their phone's hotspot to connect
- WiFi in nearby establishments: cafe, hotel lobby, shopping mall
- Airport or station WiFi: available in almost all international airports
- Roaming data from Spanish SIM (for installation only): activate 100 MB of roaming to install the new plan, then deactivate it immediately
How to avoid running out of data
The best solution is not to need this guide. Prevention strategies:
- Buy more GB than you think you'll need: it's better to end your trip with leftover data than to run out at the worst possible moment
- Activate usage alerts at 75% and 90% of data
- Download offline maps before leaving the hotel each morning
- Use your accommodation's WiFi for streaming, updates, and social media
What to do in a data emergency
If you run out of data and don't have WiFi available, these still work without an internet connection:
- Google Maps with previously downloaded maps
- SMS messages (not WhatsApp) via your Spanish SIM
- Calls with your Spanish SIM (with roaming costs)
- Photos, notes, and documents already downloaded on your phone
- Offline translation with Google Translate (if you downloaded the language)
Conclusion
Running out of eSIM data is an avoidable setback with planning, and it's solvable in minutes if you have WiFi nearby. The key is to monitor usage regularly, buy a plan with enough margin, and know your provider's top-up options in advance.
FAQ: recharging eSIM while traveling
Can I install a new eSIM over the one that has run out?
Yes. You can have multiple eSIM profiles installed on your phone. Install the new plan and activate it from the settings. The exhausted plan is saved (it may have temporary validity even without data).
Do unused data roll over to the next month?
Most travel eSIMs do not accumulate data. When the plan expires, any remaining data is lost. Only some special plans offer data rollover.
Can I buy extra GB before they run out?
If the provider offers "top-ups," yes. It's better to add data when you have 1–2 GB left than to wait until you've completely run out. This way, you avoid being without data at a critical moment.
How long does it take for a top-up to activate?
Recharges of the same plan are usually instant or take less than 5 minutes. New plans that require installing a new eSIM profile can take 5–15 minutes.
If I activate roaming on my Spanish SIM, how much will I be charged?
It depends on your tariff. Within the EU, "Roam Like at Home" applies up to the fair usage limit of your tariff. Outside the EU, prices are variable and can be very high: between €5 and €15 per MB in some destinations.
