US-issued Visa Infinite cards get 3 GB of free international data through GigSky, Visa Signature cards get 1 GB, valid 15 days once activated and claimable once every 365 days. How to claim it, and what to do when it runs out on a longer trip.
As an Amazon Associate I earn from qualifying purchases.
Most people buy a travel eSIM without checking whether they already own one.
The short answer, if you want it before the detail. Your Visa card probably has free international data attached to it and you should claim it, because it costs nothing. It will not be enough for a real trip. We ran ten days across France and Switzerland on the free allowances first and spent the middle of it rationing megabytes, then installed a Holafly Europe eSIM and stopped thinking about data for the rest of the trip. Ten days of unlimited data is $36.50, our code REWARDSGURU takes 5% off, and next time we would buy it for day one. (Affiliate link, and we say so again at the bottom. The free card benefit below pays us nothing.)
The rest of this is the detail: exactly what your card gives you, how to claim it, and where it runs out.
If you carry a US-issued Visa Signature or Visa Infinite card, GigSky gives you international data at no charge, in 175 countries and more. The amount is not a marketing claim. It is written on GigSky's own terms page for the Visa program, and it reads like this:
| What you get | Visa Signature (US) | Visa Infinite (US) |
|---|---|---|
| Complimentary data | 1 GB | 3 GB |
| How long it lasts | 15 days once activated | 15 days once activated |
| How often you can claim it | Once every 365 days | Once every 365 days |
| Discount on paid GigSky plans | 20% | 30% |
Two details in the same terms are easy to miss and both matter. If you receive a complimentary plan and do not activate it, GigSky says the plan "will auto activate" a year later, so a benefit you were saving can start its own clock without you. And the whole offer has an end date on it: the last date it can be redeemed is 11/15/2027.
There is no enrollment page and no promo code. It happens inside the GigSky app:
That third step is also the honest eligibility test. Card tiers are not printed on the card, issuers move products between tiers, and "premium travel card" does not reliably mean Infinite. Rather than trusting a list, put the card in the app and let it tell you whether you are looking at 1 GB or 3 GB.
Read the allowance as a whole unit rather than as a headline. It is not 3 GB. It is 3 GB, for 15 days, once a year.
For a long weekend, that is a real benefit and you can stop reading. Maps, messaging and a few searches will not trouble it.
For anything longer, do the arithmetic before you fly rather than at an airport. Three gigabytes across ten days is roughly 300 MB a day for everything: navigation while you walk, boarding passes, restaurant lookups, the train app, uploading photographs. Video calls and map downloads clear that in an afternoon. A 1 GB Signature allowance is a day or two of ordinary use.
This is not a knock on the benefit. It is free data attached to a card you already pay for, and most cardholders never claim it at all. It is simply sized for a short trip, and the failure mode is discovering that in the middle of a longer one.
We traveled France and Switzerland for ten days in September 2026 and worked through all three layers in order. The honest summary is that the part which worked best was not the part that was free, and that is worth saying plainly because most articles about this will not.
The card benefit went first, because it costs nothing and you should claim it whatever else you do. It did not carry us far. Some of that is arithmetic, since 3 GB across a long trip was never going to last. But it also simply did not perform well for us in practice, and by the time we were relying on it we were rationing rather than using it.
The carrier plan came next. Ours included 5 GB of high-speed data in Europe and covered the early days. Check your own before you buy anything, because plans differ sharply by tier and the included allowance is the single number that decides whether you need to spend money at all. Somewhere around the middle of the trip it was clearly going to run out.
The paid eSIM is the one we would buy again. We installed a Holafly Europe plan when the free allowances were spent, and it ran the entire rest of the trip without a single problem: navigation across three countries, trains through the Alps, maps in valleys where we expected to lose signal, photographs uploaded every evening. It was the only part of the setup we never had to think about after installing it.
If we were packing for the same trip tomorrow, we would buy it for day one and treat the free card data as a bonus on top rather than as the plan. The order above is how to avoid paying for days you already own. It is not a ranking of what actually works.
Prices from Holafly's own Europe page, in US dollars, checked September 18, 2026:
| Days | Price |
|---|---|
| 1 | $3.90 |
| 3 | $11.90 |
| 5 | $20.50 |
| 7 | $27.50 |
| 10 | $36.50 |
| 15 | $50.50 |
| 30 | $73.90 |
The Europe plan covers 32 destinations, and Switzerland is one of them. That is worth checking on any eSIM you buy, because Switzerland sits outside the EU and some "Europe" plans leave it out. The United Kingdom and Ireland are included too.
One thing to settle before you pay for any of this: your phone has to support eSIM at all. Holafly keeps a compatibility list, and their app checks your handset before you buy. Every iPhone from the 14 onward sold in the US is eSIM-only, so if you are on a recent US iPhone this is already decided for you.
A few practical points, all from Holafly's own pages:
The plans are sold as unlimited, and there are two edges to that word.
Hotspot sharing is capped at 1 GB a day. Holafly states it plainly: you can share "1 GB of data per day", and the total you can share scales with the length of the plan, so a seven-day plan carries 7 GB of sharing in total. Unlimited describes the data on your own handset. If you intend to tether a laptop and work, that cap, not the price, is the number that should decide your choice.
That cap is also the thing to understand before you buy a travel router, because the two get sold together as though they solve each other. They do not, quite.
A travel router like the GL.iNet Slate 7 has no SIM slot. It does not hold your eSIM. What it does is take an internet connection from somewhere else and turn it into one network of your own: it runs as a repeater on hotel Wi-Fi, over Ethernet, or by tethering to your phone, and GL.iNet's own page lists those as its modes.
So feeding it from your phone's Holafly hotspot works, and it is a genuinely tidy way to get a laptop and a tablet online through one plan. But you are still inside the 1 GB a day. The router shares the allowance more conveniently. It does not enlarge it.
Where a router does earn its place on a trip is the hotel Wi-Fi you were going to use anyway. One device clears the captive portal, everything else joins your own network and stays joined as you move rooms or cities, and your VPN covers all of it at once instead of device by device. GL.iNet rates the Slate 7 for 120+ simultaneous connections and builds in captive-portal handling for exactly that. That is the case for buying one. Escaping an eSIM's sharing cap is not.
"Unlimited" means no hard stop, not no limits. Holafly's terms are specific about it:
"If you purchase an 'unlimited' Trip Data Plan please note that this means there is no fixed data allowance that automatically stops data use, but your data coverage and speed may be subject to a network service provider's fair use policy."
The same clause says the network "reserves its right to impose restrictions or limitations on data usage or speed if your usage is deemed excessive". No threshold is published, so nobody can tell you the number at which it bites. Ordinary travel use is not what that clause is aimed at, but you should know it exists rather than meet it by surprise.
Short version: claim the free data, then buy the eSIM anyway.
Our code REWARDSGURU takes 5% off any travel eSIM, and 10% off Holafly Plans for the first 12 months if you want the ongoing product rather than a single trip. The code is reusable rather than one-time, so it still works on the next trip and it works for whoever you are traveling with.
Type the code in at checkout. It is not applied automatically, whatever any link tells you, and that includes ours.
The Holafly and Amazon links above are affiliate links: RewardsGuru LLC earns a commission if you buy through them, at no extra cost to you, and neither changes anything about the limits described above. We have no commercial relationship with GigSky or Visa, so the free card benefit costs you nothing and pays us nothing. Full disclosure.
Terms and prices in this article were read on the operators' own pages on September 18, 2026 and are stated as of that date. Benefit programs change; GigSky's terms reserve the right to alter or end the Visa offer at any time and without notice, and Visa is not responsible for the plans GigSky provides.