You're in the middle of a trip, you open Google Maps, and suddenly it doesn't load: you've run out of eSIM data. The good news is that nothing serious happens, you're not overcharged, and fixing it literally takes a minute. In this guide, we explain exactly what happens when you use up all your data and what options you have to get back online.
What happens when data runs out?
When you use up all the data on your prepaid eSIM, you simply lose internet access: you can't connect to data, apps don't load, and you aren't charged an extra cent. There are no surprises on the bill because there is no bill. Your plan becomes "empty" and awaits a top-up.
This is precisely the big difference from traditional roaming: with a prepaid eSIM, you pay upfront, and when it runs out, it runs out. You don't keep consuming at a premium price without realizing it, as used to happen with a physical card spending money uncontrollably. You still have network coverage, but no data traffic available until you top up or install a new plan. In some cases, if your plan included calls or SMS with a number, those services may still be active even if the data has run out.
How to check your remaining data
Before you run out completely, it's ideal to monitor your usage. You can check usage from your phone settings, but the most reliable way is to check your eSIM account, where you see the exact balance in real time.
- iPhone: Settings > Mobile Data > tap your eSIM plan to see current period usage.
- Android: Settings > Connections > Data usage > select your eSIM.
- In your PuraSim account: the real, updated balance, without relying on the system's counter (which sometimes mixes the usage of your primary SIM).
If you're someone who checks your phone every five minutes abroad, you'll want to learn how to see how much data you have left on your eSIM to avoid surprises. And if you're cutting it close, also check out tips for saving data abroad.
Traveler's tip: set a mental alert (or a note) when you drop below 20% of your data. Topping up in advance is much more convenient than doing it with your suitcase in hand and no map.
Recharge or buy a new eSIM
You have two paths, and both can be resolved from your phone in less than a minute, without going to any store:
- Recharge your current plan: if your eSIM is rechargeable, you add more data to the same profile you already have installed. There's no need to scan a new QR code or reconfigure anything.
- Buy a new eSIM: you install another plan on top. iPhones and most modern Android phones accept multiple saved eSIMs, so you can have several and activate the one you want.
If your plan supports recharging, it's the fastest way: see how a rechargeable eSIM works. And if you prefer to start from scratch with another destination or more data, here's how to buy an eSIM online in a couple of taps. In either case, the new connection is usually ready in one minute after payment, with no paperwork.
Tips to prevent it from happening again
Running out of data is almost always a matter of underestimating usage or some apps consuming more than you think. These habits will save you a lot of trouble:
- Download offline maps of your destination before you leave: Google Maps lets you use entire areas without using data.
- Cut background consumption of apps you don't need (updates, cloud backups, autoplay videos).
- Use hotel or cafe Wi-Fi for heavy tasks: uploading photos, long video calls, or downloading series.
- Activate data warnings in your phone settings to be notified when you reach a certain limit.
With these habits, a few gigabytes go much further than they seem. If you want to delve deeper, we have an entire guide on travel data consumption with real figures by usage type.
What NOT to do to avoid surprises
When the internet stops working, the temptation is to tinker. Be careful with these classic mistakes that usually make things worse:
- Don't delete the eSIM thinking it's "broken." If you delete it, in many cases it cannot be reinstalled and you would lose the plan. First, learn how to properly delete an eSIM (and when not to).
- Don't suddenly activate roaming on your Spanish SIM: you could end up paying expensive roaming by accident. If you don't know if you have it, check if you have roaming activated.
- Don't restart a thousand times before checking your balance. Often "it's not working" simply means you've run out of data.
If it still doesn't work after topping up, then you should check the settings: in eSIM data not working you'll find a step-by-step diagnosis.
How much data you really need
To avoid running short again, it helps to have a realistic reference for consumption. A leisure traveler who uses maps, messaging, some social media, and normal browsing usually consumes between 1 and 2 GB per week. If you use a lot of video, video calls, or share your connection, that amount skyrockets.
| Traveler profile | Typical usage | Estimated consumption |
|---|---|---|
| Light | Maps, WhatsApp, some web browsing | ~500 MB - 1 GB / week |
| Medium | Social media, photos, browsing | ~1 - 3 GB / week |
| Heavy | Video, video calls, hotspot | ~5 GB+ / week |
If you're unsure, it's better to get too much than too little, or simply choose a plan with more allowance. To calculate it carefully, see how much data you need for your trip based on the days and type of getaway.
Frequently asked questions
What happens if I run out of eSIM data?
You simply lose internet access, but you are not charged anything extra or continue to consume data unknowingly. The plan remains empty until you top up or install a new eSIM. Network coverage is still there; the only thing missing is data traffic, which you regain within a minute of topping up.
Will I be overcharged if I use all my data?
No. Since it's prepaid, you pay upfront, and when it runs out, it stops working without incurring charges. This is the big advantage over traditional roaming, where you could continue spending money without realizing it. With eSIM, spending is always under control.
Can I top up without scanning another QR code?
If your eSIM is rechargeable, yes: you add data to the same profile you already have installed, without scanning anything new. If you buy a different eSIM, it is installed as a separate plan, and you choose which one to activate. Both options take about a minute to be ready.
Can the eSIM be topped up without an internet connection?
You need a connection to complete the purchase: use hotel, airport, or cafe Wi-Fi. Once paid, the plan activates as soon as you have network again. That's why it's advisable to top up before you run completely out of data and without nearby Wi-Fi.
Should I delete the old eSIM when data runs out?
It's not necessary and not advisable to do it lightly: if you delete it, you might not be able to reinstall it. If it's rechargeable, you keep it and add data to it. Only delete it when you are sure you won't use it anymore and know how to do it correctly.
Conclusion
Running out of data in the middle of a trip is not a disaster: there are no surprise charges, and the solution is just a tap away. By monitoring your balance and topping up on time, you'll always be connected. Next time, choose a plan with plenty of allowance and travel with peace of mind: with a PuraSim eSIM, you'll have internet again in a minute, with no queues or paperwork.
