Last updated: July 30, 2026
Seeing a "low data" warning pop up in the middle of a trip or a semester abroad is unsettling — and it happens to a lot of people. The short answer: if your eSIM runs low or runs out, you can usually top up the same eSIM from your account page or buy a new plan, and get back online without redoing any setup on your phone. This guide walks through what to check first when your balance gets low, what actually happens when you use it all up, when to top up versus buy a new plan, and how much data to choose next time so it doesn't happen again. Before you start tapping around in a panic, give this a read.
- Running out isn't the end — you can get back online
- Top up for a few more days, buy a new plan for a longer stay
- Using up your data simply stops the connection
- Video is where most of your data goes
- You get a heads-up before it stops
Three things to check first
Check them in this order: how much data is left, how many days you have left, and what you actually need the data for. Go through those three and the decision usually makes itself.
1. How much data is left
You can see the remaining balance for your active eSIM from your account page. With Bloomy eSIM, we send you a notification once your balance drops below 1GB (this doesn't apply to plans of 1GB or less, or to unlimited-data plans). When that message arrives, you're still connected — it's a heads-up, not a cut-off.
2. How many days you have left
One more day is a very different situation from one more week. If you're flying out tomorrow, simply using up what's left can be a perfectly sensible choice.
3. What you'll be using it for
If it's just maps and messaging, 1GB can easily last several days. If you're planning to stream video or make video calls, 1GB can disappear in well under an hour. What you need depends almost entirely on how you use your phone.
What actually happens when you use it all up
The only thing that happens is that data on that eSIM stops working. Your phone isn't damaged, and your settings aren't erased. Add data and you're back online with the same eSIM.
That said, while you're offline, anything that needs the internet — maps, translation, ride-hailing, messaging apps — won't work. That's a real problem if you're on the move or trying to meet someone, so it's worth acting while you still have a little headroom. If you have Wi‑Fi at your hotel or a café, you can add data or buy a new plan right there.
Bloomy eSIM plans are data-only: they don't come with a phone number, and they don't support voice calls or SMS. App-based calls that run over data — WhatsApp, Messenger, FaceTime and similar — work as usual. So the only things you can't do are place and receive calls on a phone number, and send or receive SMS. Since app calls stop working once your data runs out, keep an eye on your balance if that's how you stay in touch with people.
Option 1: Add data from your account page
This means topping up the eSIM you're already using. The big advantage is that nothing changes on your phone — no reinstalling, no re-scanning, no new settings. If you're not especially comfortable with phone settings, or you're on the move and can't sit down and concentrate, this is the harder option to get wrong.
The process is simply: log in to your account page, select the eSIM in question, and follow the on-screen steps. What you can add, and under what conditions, can vary by plan, so check what's shown on the screen.
When topping up makes sense
- You have a few days left and just need a bit more data
- You're out and about and don't have time to redo any setup
- Everything is working and you'd rather not touch it
Option 2: Buy a new plan
If you still have a long stretch ahead of you, or you're clearly going to use more data than you first expected, it's often clearer to pick a new plan sized to the data and number of days you actually need. You can filter by destination, data amount and duration on the eSIM comparison page.
Setting up a Bloomy eSIM works like this: tap the setup link we send you, follow the prompts to add the eSIM, then switch the line on once you arrive. The full walkthrough is in our setup guide. One thing to note: phones can only store a limited number of eSIM profiles, so if you have a pile of old, finished eSIMs on your device, it's worth clearing out the ones you no longer need before adding another.
When a new plan makes sense
- You have a week or more left in your stay
- Your usage has changed and you need noticeably more data
- You're moving on to a different country or region
You can see current plans and pricing in the table below.
[bloomy_price_table]
Top up or buy new — which one?
If you're torn, use the table below as a rough guide. Neither option is better than the other; the simplest way to decide is by how many days you have left.
| Point of comparison | Adding data | Buying a new plan |
|---|---|---|
| Best for | A few days left | A week or more left |
| Setup on your phone | Nothing to redo | Tap the setup link to add it |
| Flexibility | Limited to your current plan | Choose data, duration and destination again |
| If your destination changes | Assumes you stay in the same coverage area | Pick a plan that matches where you're heading |
| What to check | What can be added, and any conditions | How validity is counted, and device compatibility |
Either way, how the validity period is counted can differ from plan to plan. Check the details before you buy.
Before you run low: how much data things use, and how to stretch it
The best way to avoid running out is to have a rough sense of how much your own habits consume. The figures below are approximate and will vary quite a bit depending on the app and your quality settings.
| What you're doing | Rough usage per hour |
|---|---|
| Checking directions in a maps app | About 5–10MB |
| Browsing web pages and searching | About 10–30MB |
| Messaging (mostly text) | A few MB |
| Scrolling a social feed (image-heavy) | About 100–200MB |
| Video calls | About 300–600MB |
| Streaming video (standard definition) | About 700MB–1GB |
As the table makes clear, most of your data goes to video and video calls. If you're mainly using maps and staying in touch, you'll likely need far less than you'd expect.
Quick ways to save data
- Watch video on your accommodation's Wi‑Fi, or drop the streaming quality
- Download maps for offline use before you set off
- Turn off automatic app updates and photo backups over mobile data
- Turn off autoplay for videos in social apps
Automatic photo backup is the sneaky one — take a few hundred photos on a trip and it can burn through a surprising amount without you noticing. Worth checking before you travel. For more on choosing the right amount of data, see our eSIM guide articles.
Who should get an unlimited plan — and who doesn't need one
If constantly watching your data balance feels like a chore, an unlimited-data plan is one way to go. But an unlimited plan doesn't make every consideration disappear, so here's the honest version.
An unlimited plan suits you if
- You're staying a while and working remotely or joining online meetings every day
- You use video and video calls as a matter of routine
- You'd rather not think about your balance or check it constantly
A standard data plan is plenty if
- You're travelling for a few days to a week, mostly using maps and messaging
- You'll have Wi‑Fi for much of your time at your hotel or accommodation
- You prefer to buy just what you need and not pay for extra
Unlimited plans differ in how daily high-speed data is handled, what the fair use policy says, and whether (and how) tethering — sharing your connection with other devices — is allowed. "Unlimited" doesn't mean every kind of usage is treated identically, so read the conditions before you buy. You'll find the details on the Unlimited Max page and in our unlimited eSIM articles.
When you still have data but nothing connects
If your balance looks fine but you can't get online, something other than data is usually the cause. The common culprits:
- The eSIM line isn't switched on in your phone's settings
- Your phone is still using your home-country line for mobile data instead of the eSIM
- Data roaming is turned off
- The plan has expired, or the conditions for activation haven't been met yet
- Airplane mode is still on
In these cases, adding data won't fix anything. Start with our connection troubleshooting guide and work through it in order. Going through your phone's settings one at a time solves it for most people without any help.
In short: there's no need to panic
If your eSIM data runs out, the connection simply stops — add data and you carry on with the same eSIM. The decision sequence is: check your balance, count your remaining days, then top up for a short stay or buy a new plan for a longer one. Remember those three and you won't be stuck puzzling it out on the street.
If you're dealing with this right now, check your balance and add data from your account page. If you're planning ahead, use the eSIM comparison page to pick the right amount of data for your destination and trip length. Still unsure about something? Our FAQ covers the most common questions.
Information here is current as of July 2026. Data usage figures are estimates; your actual consumption will depend on the apps and settings you use. Bloomy eSIM plans are data-only — no phone number, no voice calls, no SMS — and are subject to a fair use policy. Connection speed and quality vary with the local network, your device and your location. Plan contents, pricing, supported countries and regions, and terms of use may change, so please check the latest details shown at the time of purchase.
