The best eSIM in Asia changes ten-fold between countries

What counts as Asia here

Twenty-three markets, and the line has to be drawn somewhere, so: East, South-East, South and Central Asia.

East Asia — China, Hong Kong, Macau, Japan, South Korea, Taiwan, Mongolia. South-East Asia — Thailand, Vietnam, Singapore, Indonesia, the Philippines, Malaysia, Cambodia, Laos. South Asia — India, Pakistan, Nepal, Bangladesh, Sri Lanka, the Maldives. Central Asia — Kazakhstan, Uzbekistan.

Western Asia is left out on purpose. We price Israel, Jordan, Iraq, Qatar, Saudi Arabia, the United Arab Emirates, Lebanon, Armenia, Azerbaijan, Georgia and Turkey, and all of them are Asian on a map — but nobody planning a trip searches for an Asia eSIM and means Amman. They have country pages of their own; this page would only bury them.

Airalo is verified in all twenty-three, read on 13 and 17 August 2026. Nomad is verified in eight of them — Thailand, Singapore, Japan, South Korea, Vietnam, Indonesia, India and the Philippines — read on 18 August. Saily is verified in eight — Japan, Thailand, Vietnam, India, Indonesia, Singapore, South Korea and the Philippines — read on 13, 16 and 18 August. Holafly and eSIM Go remain unchecked everywhere, and eSIMCard's rows have been withdrawn after we read its site and found them wrong.

The verified floor, market by market

Thailand to Laos is a ten-fold spread inside one region, read in the same month. There is no single Asian answer.

A correction: the Thai $12 plan is real

This page used to carry a warning about it. Nomad listed a 50 GB Thai plan at $12; we held that as an unverified figure, said it was less than half the cheapest confirmed rate anywhere, noted that a neighbouring Nomad row was flagged suspect in our own data, and refused to rank it.

Nomad's catalogue was read off nomadesim.com in USD on 17 August 2026 — 436 plans across all 47 of its countries — and the plan exists exactly as listed. 50 GB for 10 days, $12, $0.24 a gigabyte. That is now the cheapest verified rate on this site, in any country, from any seller.

The thing that made it look impossible was our own record, not Nomad's price list: we had the duration as 30 days. At 30 days, $12 for 50 GB would have been an outlier nothing else in the market came near. At 10 days it is a short, large, cheap plan — an unusual shape, but an ordinary one. The suspect flag on the adjacent row is gone too; no Nomad row anywhere in our data is flagged now.

The ten-day window is the thing to check before you buy. Airalo's verified Thai 50 GB runs a full 30 days for $27.50, which is $0.55 a gigabyte and more than twice the rate — but three times the window. If your trip is a fortnight, Airalo's plan is the one that lasts it. Nomad in Thailand sets out both ladders.

The rungs give the pricing away

Seven of these markets land on exactly $0.98 a gigabyte, which is also the median verified floor across all 94 countries on this site. That is not a coincidence about Asia. It is what happens when seven countries all sell the same Airalo 50 GB plan over 30 days for the same $49.

Ten Asian markets carry that $49 plan, in fact — Indonesia, South Korea and Vietnam do too. In those three it is no longer the floor, because Nomad undercuts it. The $49 did not move; a second seller arrived underneath it.

Look at the five newest East and Central Asian markets together. China, Hong Kong, Macau, Mongolia and Kazakhstan each sell Airalo's 1 GB over 3 days at exactly $4.00 and its 50 GB over 30 days at exactly $49. In between, the 20 GB rung runs from $22.50 in Macau to $39 in China — a 73% spread across the middle of a ladder whose two ends are identical to the cent.

Nomad does the same thing more baldly. Thirteen European countries share every rung of its ladder to the cent, and France and Spain share a second. In Asia its prices actually differ market by market, which makes the European uniformity harder to read as anything but policy.

The pattern is site-wide. Fifty-six countries carry an Airalo 1 GB, 3-day plan at exactly $4.00. Eighteen of the fifty-six countries that sell 50 GB over 30 days price it at exactly $49, and ten of those eighteen are in this region. Eight countries price 20 GB over 15 days at exactly $48 — Laos among them, alongside Canada, Jordan, Ghana, Ecuador, Bolivia, Armenia and Azerbaijan.

Prices that repeat to the dollar across unrelated countries on four continents are not reading local wholesale cost. They read as a seller's tiering policy: the ends of the ladder pinned to standard price points, the middle left to move. Neither Airalo nor Nomad publishes anything about how it sets prices, so this is inference rather than proof — but it fits the data better than the usual story, and it is the reason to compare the rung you actually want rather than the country you are visiting.

Where the ceiling stops

Seventeen of the twenty-three sell a 50 GB plan, and in every one of those it is the cheapest rate on offer. Six stop at 20 GB: Pakistan, Nepal, Sri Lanka, Uzbekistan, the Maldives and Laos. There the usual advice — scroll down to the big plan — has nowhere to go.

Japan and India were on that list until 18 August. Airalo sells nothing above 20 GB in either, and on Airalo's ladder alone Japan's floor is $1.20 a gigabyte and India's $1.83. Nomad sells 50 GB in both — $35 in Japan, $43 in India — which cuts Japan's floor to $0.70 and India's to $0.86. India is the largest single correction on this page: its verified floor more than halved.

Sri Lanka is the exception that proves the ceiling is not destiny. It tops out at 20 GB and still comes in at $0.90 a gigabyte, because its 20 GB plan runs a full 30 days for $18. That is the only sub-dollar rate on this page that does not come from a 50 GB plan.

Taiwan and Malaysia show the reverse. Both sell 50 GB, both charge $69.50 for it, and both still land well above Japan on cost per gigabyte because the plan is dear in absolute terms. The ceiling sets the shape; the price still has to be read.

Where a local SIM quietly wins

Two markets sell prepaid SIMs with no registration at all: Singapore and South Korea. In both an airport SIM runs about $12 — roughly what Airalo charges for 10 GB there, and you walk out with it in minutes. Indonesia and the Philippines sell SIMs at around $5, the cheapest counter prices we hold in Asia, though both need a passport; Vietnam and India are about $7 on the same terms. For the thirteen markets added on 17 August we have done no local-SIM research and will not guess.

The trade tips further toward the counter once you want a particular network. Airalo, Saily and Nomad each publish no host network in any Asian market — none of the three, anywhere — Holafly names none either, eSIM Go has no consumer page at all, and the operator names our data once carried against eSIMCard's rows came from our own text rather than from eSIMCard. If you are heading somewhere rural in Indonesia, Nepal or the Philippines and coverage is the whole question, buy in person.

The practical order

Pick the market first, then the rung. Check whether a 50 GB plan exists — seventeen of these twenty-three have one, and it is almost always the floor. Check the window as well as the size: Thailand's cheapest plan runs ten days and Indonesia's runs forty-five, and neither number is visible from the per-gigabyte rate. Prefer a price somebody read off a checkout: in Asia that means Airalo everywhere, Nomad in eight markets, and Saily in Japan, Thailand, Vietnam, India, Indonesia, Singapore, South Korea and the Philippines. Holafly reaches only seven of the twenty-three and none of its rows has been checked.

For the arithmetic, see the cheapest eSIM plans and how we test.