Last updated: 22 October 2026
When a travel eSIM runs out of data, mobile data on that line stops (on a fixed plan) or slows down until the next day (on a daily or unlimited plan). Your phone still works on Wi-Fi, and your home line still takes calls and texts. To get back online, top up the same eSIM if your provider offers it, or buy a second plan and install it beside the first: a phone holds several eSIMs and you choose which one carries data.
| Plan type | When the data is used up | What to do |
|---|---|---|
| Fixed (for example 10 GB for 7 days) | Data stops on that line | Top up, or add a second plan |
| Daily (for example 1 GB a day) | Slower, or stopped, until the next day's allowance | Wait for the next day, or add a plan |
| Unlimited | Slower past the plan's fair-use amount each day | Usually nothing: full speed returns the next day |
What happens when your eSIM runs out
Fixed data plans stop when the data is gone. The eSIM stays installed and the line stays on, but nothing loads over it until you add data or the plan ends.
Daily plans give you a fresh allowance every 24 hours. Once today's is used, data slows down or stops until the next allowance, depending on the plan. However much you used yesterday, today starts full again.
Unlimited plans keep working, but past a daily fair-use amount the speed drops until the next day. Each plan states where that line is.
One thing to watch: when the travel eSIM stops, do not switch mobile data back to your home line to get online unless you mean to pay for it. Verizon and AT&T charge $12 a day per line for their international day passes. Our guide What is data roaming? explains how to keep your home line from roaming.
If data stops but you think you still have some left, the problem is probably a setting, not your balance. Work through eSIM not working abroad first.
How to check how much data you have left
Your provider's app or order page is the figure that counts. It is what the network measures. Your phone keeps its own estimate, which can differ.
- eSIM Lounge: open your order page (the link is in your eSIM email). The "Your plan" box shows the status (Active or Not started yet), the data used and the date the plan ends.
- iPhone: go to Settings > Cellular (Mobile Data in some countries) and scroll to the list of apps. The total is the phone's count since the last reset. Tap Reset Statistics at the bottom on the day you land, so the count starts with your trip.
- Google Pixel: go to Settings > Network & internet > SIMs and tap the travel eSIM. Google says the total appears at the top; tap App data usage for a graph and a breakdown by app.
- Samsung Galaxy: go to Settings > Connections > Data usage, then mobile data usage. Pick the travel eSIM if you have two lines.
On Android you can also set a data warning on the travel eSIM, so the phone tells you before the plan runs dry.
Can you top up a travel eSIM?
It depends on the provider. We checked on 22 October 2026:
- Airalo: you can add a top-up package to the same eSIM from the app (My eSIMs, then the eSIM, then Top Up) as long as the eSIM is still installed and a package is offered for it. Airalo says that if there is no Top Up button, you buy another eSIM.
- Saily: you can add data to your eSIM in the app, and Saily also offers Auto Top-Up, which renews a plan once it is fully used.
- Holafly: no. Its FAQ (updated 1 October 2026) says top-ups and data reloads are no longer available. You buy a new plan and install it as a new eSIM; Holafly suggests buying it 24 hours before your current plan ends.
- eSIM Lounge: not yet. If you run out, buy another plan for the same destination and install it beside the first one.
Our Airalo vs Holafly comparison covers how the two differ beyond top-ups.
How to add a second plan beside the first
This is how you get more data from us, and it works with most providers that have no top-up.
- Get on Wi-Fi. Installing an eSIM needs an internet connection, and the one that ran out cannot give it to you. Hotel, cafe or airport Wi-Fi all work.
- Buy a plan for the same destination. Pick the size you need for the days you have left. For Japan, for example, our plans start at $2.99 for 0.6 GB over one day; 40 GB for 7 days costs $13.99 and 7 days of unlimited data $17.99 (prices on 22 October 2026).
- Install it. The QR code arrives by email within minutes, with one-tap install links for iPhone and Android. Follow our install guide for iPhone or Android.
- Make it your data line. On iPhone: Settings > Cellular > Cellular Data, then choose the new eSIM. On Android: choose it for mobile data in your SIM settings.
- Turn on data roaming for the new eSIM. Travel eSIMs connect through local partner networks, so they need roaming on, line by line.
Your phone can hold several eSIMs, so the old one can stay installed. Turn its line off rather than deleting it: a deleted travel eSIM usually cannot be installed again, and you may want to check its usage later. Our guide on deleting an eSIM from an iPhone explains the difference.
For most plans the days start when the eSIM first connects to a network in a covered country, so a plan you install mid-trip starts when you switch it on there.
How to avoid running out next time
- Size the plan to the trip, then add a margin. Maps, rideshare apps, messages and social media use more than people expect. Our guide to fixed, daily and unlimited data shows which shape fits which traveler.
- Turn on Low Data Mode. On iPhone, open the travel eSIM's line under Settings > Cellular, then Cellular Data Options > Data Mode > Low Data Mode. It pauses automatic updates and background tasks.
- Stop photo backups over cellular. Cloud photo backups can use gigabytes in a day. Let them run on hotel Wi-Fi.
- Download offline maps of the cities you visit before you leave home.
- Choose a daily or unlimited plan if you stream video, make lots of video calls, or cannot predict your use.
FAQ
What happens when my eSIM runs out of data?
On a fixed plan, data stops on that line. On a daily or unlimited plan, it slows down until the next day. The eSIM stays installed, Wi-Fi keeps working and your home line still takes calls and texts.
Can I top up my eSIM?
Some providers let you add data to the same eSIM (Airalo when a package is offered, Saily in its app). Holafly no longer offers top-ups, and eSIM Lounge does not offer them yet: you buy a second plan and install it beside the first.
How do I check how much data is left on my eSIM?
Use your provider's app or order page, which shows what the network measured. Your phone's own count is in Settings > Cellular on iPhone, and under Settings > Network & internet > SIMs on a Pixel.
Will my phone switch to my home plan when the eSIM runs out?
Not if the travel eSIM is your data line and cellular data switching is off. If you switch data to your home line yourself, your carrier will charge its roaming rate, which is $12 a day per line on Verizon and AT&T day passes.
Can I have two travel eSIMs on one phone?
Yes. Phones hold several eSIMs and you choose which line carries data. Install the second plan, select it for cellular data and turn on data roaming for it.
Does a daily eSIM plan reset?
Yes. A daily plan gives you a fresh allowance every 24 hours, whatever you used the day before. Past the allowance, data slows or stops until the next one, depending on the plan.
Facts checked on 22 October 2026 against the Airalo, Saily and Holafly help centers, Google Pixel Help, Verizon and AT&T roaming pages, and our own plans and order page.