Comparisons
Unlimited eSIM or one by the gigabyte: which you actually need
Unlimited is reassuring and hardly ever necessary. When each one pays off, what small print to read, and how to tell which group you're in.
Nerea Aguilar 8 min Photo by Adil Edin on Unsplash People buy unlimited for the same reason they buy insurance: so they don't have to think about it. And like insurance, sometimes it pays off and sometimes you've paid for peace of mind you didn't need. The difference is that here you can work it out in advance.
What unlimited means on a travel eSIM
It almost always means one of two things, and it's worth knowing which before you buy.
- Data with no volume cap at full speed, with a fair use policy behind it to prevent abuse.
- A daily allowance at full speed and, once that's used, reduced-speed service until the next day. There's still data, but video stops running smoothly.
Both are legitimate as long as they're written down, and they usually are. What you can't do is assume unlimited means the first one.
When unlimited pays off
- When you're working along the way and can't afford to think about usage: video calls, large files, tethering a laptop.
- On long trips where the sums get hard to pin down and getting them wrong costs more than the plan.
- If you'll be sharing the connection with other people who aren't going to hold back.
- If your way of travelling is constant video: streaming, posting stories all day, watching series on the way.
When a plan by the gigabyte wins clearly
On most ordinary holidays, simply because you don't come anywhere near the volume that would justify the other one.
| Daily use | One week | Two weeks |
|---|---|---|
| Maps and messaging | 1.5 to 3 GB | 3 to 6 GB |
| With social media | 3.5 to 7 GB | 7 to 14 GB |
| With daily video | 7 to 10 GB | 15 to 20 GB |
Find your row and compare it with what the destination's plans offer. If your number fits comfortably into a plan by the gigabyte, unlimited is charging you for peace of mind you already have.
To pin the number down, the per-app sums are in how much data you actually use on a trip.
The three-number trick
If you don't know which group you're in, your phone already does. Your mobile data settings have a usage counter: reset it on a Monday and look at it on Sunday. That number, divided by seven, is your real daily use at home.
Travelling it usually climbs by 30% to 50%, because home wifi disappears and maps appear. With that sum you'll know whether your trip fits a plan by the gigabyte without guessing.
A warning about tethering
Sharing your connection uses whatever the connected device would use, and a laptop uses far more than a phone: updates, cloud backups and heavy pages. If you're going to tether, count on two or three times what you'd work out for yourself alone.
What you can and can't do when tethering from an eSIM is in tethering from an eSIM.
What's available in each destination
Not every destination has both families. There are countries where the catalogue offers unlimited data plans and others where there are only plans by the gigabyte, and that's decided by the local operator, not by a commercial choice of ours. You'll see it on the destination's page: if both families exist, both appear.
Frequently asked questions
Is an unlimited eSIM worth it?
If you work along the way, tether, or watch video daily, yes. For an ordinary holiday, hardly ever: real usage stays well below what would justify unlimited.
Is unlimited really unlimited?
It depends on the plan. Some have no volume cap and others give a daily allowance at full speed and then continue at reduced speed. It's written in the plan's terms and worth reading first.
How do I know how much data I use?
Your phone's mobile data settings have a counter. Reset it on a Monday, check it on Sunday and divide by seven. Travelling, that number climbs by 30% to 50%.
Are there unlimited plans in every destination?
No. It depends on what each country's local operator offers. The destination's page shows the families that exist there.
What happens if I use up my data?
You're left without data on that eSIM, but not cut off: your everyday line still takes calls and texts. Depending on the plan, you may be able to top up without changing eSIM.
