A new eSIM pricing study has put a number on something many Caribbean travellers already suspect: getting online on an island can cost dramatically more than doing the same thing in Europe.

MegaEsim’s first eSIM Price Index, based on 2,776 live plans across 189 countries, puts the median cheapest price in the Caribbean at $6.64 per GB. In Europe, it is just $0.57. That makes Caribbean data 11.6 times more expensive on this particular catalogue.

The numbers were taken from MegaEsim’s own retail database on 9 August 2026, so this is not an industry-wide benchmark. But the gap is large enough to deserve attention.

The Caribbean premium

Across the 22 Caribbean countries included in the index, Saint Vincent and the Grenadines was the most expensive at $9.32 per GB, followed by Haiti at $8.60 and the Bahamas at $7.88.

Europe looks almost like a different market. The median cheapest price there is $0.57 per GB across 43 countries, while the median cost of a week-long plan is $1.29 compared with $7.71 in the Caribbean.

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That difference matters because travel eSIMs are increasingly sold on the idea that mobile data has become a commodity: pick a destination, choose a package and connect. In reality, the wholesale economics underneath those neat app interfaces remain highly uneven.

“The number that surprised us was not Monaco, it was the Caribbean,” said Enola Soha of MegaEsim. “Island wholesale rates have not moved the way European rates have, and the traveller pays the difference. Somebody flying to Saint Vincent is buying the same gigabyte as somebody flying to Lisbon, and paying sixteen times more for it. We publish our own prices because we are the ones charging them, and anybody can check the number at checkout.”

That explanation is MegaEsim’s interpretation, not an independently established cause. Still, the wider market makes one thing clear: geography no longer predicts retail eSIM prices in a simple way. Competition, network agreements, traffic volumes and how providers package wholesale connectivity can all matter.

An 81-fold global spread

The index puts Thailand at the cheapest end of the table, at $0.22 per GB through a 50GB plan priced at $11.19. Monaco sits at the opposite extreme at $18.08 per GB. The median country comes in at $1.68.

Africa is the second-most expensive region in MegaEsim’s dataset, with a median of $4.48 per GB across 33 countries.

There is another revealing number: 74 of the 189 countries measured sit at MegaEsim’s $1.29 minimum retail price.

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That does not mean global eSIM prices have literally bottomed out. It means they have hit MegaEsim’s own pricing floor, which limits what this index can tell us about competition below that point.

That distinction matters. Comparison platform eSIMDB says it now tracks more than 400,000 prepaid plans from over 180 eSIM providers, illustrating just how fragmented the travel eSIM market has become. A single provider’s price curve can show a useful pattern, but not the whole market.

Price per GB isn’t everything

Travel eSIM pricing is also getting harder to compare using one metric.

Some providers compete with fixed allowances. Others sell unlimited packages, daily bundles, regional coverage or reusable eSIM profiles.

Take the Caribbean. Ubigi currently lists a 10GB regional plan for $28 over seven days, while Holafly sells unlimited Caribbean packages priced according to trip length. Saily also offers both destination-specific and multi-country Caribbean plans. Those products cannot neatly be dropped into a “cheapest price per GB” ranking, particularly when validity, hotspot rules and fair-use conditions differ.

And that is where price indexes can become misleading if readers stop at the headline.

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A traveller spending a week in Barbados who mainly needs WhatsApp, Google Maps and restaurant searches may care much more about the total checkout price than whether data theoretically costs $2 or $6 per GB. A remote worker tethering a laptop for several hours a day has a completely different calculation. For that traveller, a larger allowance or unlimited package could make more sense even if its sticker price is higher.

The market itself is moving quickly. Juniper Research estimated travel eSIM package revenue would reach $1.8 billion in 2025, up 85% year on year, while GSMA Intelligence expects eSIM smartphone penetration to rise from 5% at the end of 2025 to 10% by the end of 2026. More compatible phones and more sellers should intensify competition, but there is little reason to expect prices to fall evenly everywhere.

Final thoughts about Caribbean eSIM prices

MegaEsim’s index is most interesting not as a definitive global league table, but as evidence that the supposedly borderless travel eSIM market still has some very visible borders in its economics.

Europe is becoming brutally competitive. In parts of the Caribbean, the same compression clearly has not happened yet.

That creates an opening. Providers with better wholesale arrangements, smarter regional bundles or different pricing models can compete on more than another polished app and a discount code. The Caribbean may actually become one of the better tests of which travel eSIM companies have real connectivity economics behind them — and which are largely reselling the same expensive underlying access.

What would make MegaEsim’s index considerably more valuable now is time. Monthly data could show whether the Caribbean premium is shrinking, whether particular countries suddenly become more competitive, and which markets resist the global downward pressure on data prices.

A snapshot tells travellers where data is expensive. A genuine index should eventually tell us where the economics of travel connectivity are changing.