The short answer
Bangkok to Siem Reap for the Angkor temples, by flight or over the land border, is one of the most common two-country trips in South-East Asia. I priced the six regional Asia plans on 25 October 2026 for a week, two weeks and a month, read how each brand defines unlimited, and added up what Ringo Light charges for the two country plans. For two weeks or a month across both, I would buy the Ringo Light Asia plan.
One eSIM for Thailand and Cambodia, unlimited data at full speed, 2 weeks at $34.99 or 30 days at $59.99, nothing renews. Airalo asks $49 for 15 days and $73.50 for the month.
For Bangkok and a quick run to Siem Reap: 3 days of unlimited at $11.50, with 3 GB a day at full speed, then 1 Mbps.
If you mostly need maps and ride-hailing: 10 GB for 30 days at $21 and 20 GB for 45 days at $35 (on sale, regular $40).
A week with 25 GB at full speed for $25, then 2 Mbps. 20 GB a month for $19, if a plan that renews is fine by you.
Prices read on 25 October 2026: Airalo, Holafly, Saily, Nomad, Ubigi on their own sites or listings, Ringo Light from its catalogue. All in US dollars unless stated. Treat every number as a snapshot.
See the full price index for every country.
The prices, charted
Asia regional plans that cover both, US dollars, 25 October 2026. Ringo Light sells 2 weeks, the others 15 days. Ubigi's 15 days is 30 GB at full speed, then 2 Mbps. Nomad sells no two-week unlimited; its longest is 10 days at $29.
The 30-day regional plan at each brand. Ubigi's month is 60 GB at full speed, then 2 Mbps. Nomad sells no 30-day unlimited.
Holafly sells no buckets. Ringo Light sells no bucket either: its 2 weeks is unlimited, so it lasts 2 weeks, not 30 days.
Side by side
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Get Ringo Light for Thailand and Cambodia, from $21.99.
Installed once, next to your own SIM. Your eSIM arrives by email in seconds.
- 7 days $21.99
- 2 weeks $34.99
- 30 days $59.99
- 90 days $73.99
We sell data eSIMs for now to fund the full Ringo service. Ringo is self funded. Every plan bought here pays for the build of one plan that works everywhere.
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That is the full Ringo service: one plan that works everywhere, with your own number included.
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What to do in Thailand and Cambodia, and what your phone needs for it
Eight places most trips through Thailand and Cambodia include, four in each, with the one thing your data does for you at each. One Asia eSIM works at every stop.
One plan for both countries: Ringo Light
The land crossing at Poipet is a queue, a stamp and a walk, and the last thing you want in it is a settings menu. A regional eSIM is already on when you step into Cambodia. Two country eSIMs mean two installs before you leave and a switch somewhere in the border crowd.
On the Asia plan, I read Ringo Light at $34.99 for 2 weeks and $59.99 for 30 days, nothing renews. For two weeks of unlimited on a regional plan, Ubigi asks $45 for a fixed 30 GB at full speed, Airalo $49, Holafly $51.50 and Saily $54.99. For a month, the rivals run $66 to $86.99.
Thailand's 2 weeks is $22.99 and Cambodia's $37.99 on their own pages, $60.98 together, against $34.99 for the Asia trip that covers both. For a month, Thailand's 30 days is $32.99 and Cambodia's $59.99, $92.98 together, against $59.99 for Asia.
Cambodia is the odd one. Its own 2 weeks at $37.99 costs more than the whole Asia plan at $34.99, and its own 30 days at $59.99 costs the same. So even a trip that is mostly Cambodia is cheaper on the Asia plan for two weeks, and Thailand rides along for free. The one exception is a month in Thailand alone, where its own 30 days at $32.99 is the better buy.
Which plans cover both countries
Ringo Light covers both. Thailand and Cambodia are on its list of 20 countries, so one eSIM works in each, at the same price and on the same terms.
The parent Asia post gives the rivals' country counts (Airalo 18, Holafly 16, Saily 22, Nomad 14, Ubigi 17) and names a few countries that Airalo and Holafly leave out, none of them Thailand or Cambodia. Beyond that, I could not confirm Thailand and Cambodia on each brand's list on the day. Open the list for the plan you pick before you pay.
If you want a data bucket: Nomad or Airalo
- Nomad, $21 for 10 GB. The cheapest 10 GB on its 14-country APAC plan, and 20 GB for 45 days at $35 (on sale, regular $40).
- Airalo, $25 for 10 GB. Asialink, 18 countries, 20 GB for 30 days at $39, buckets from $4 for 1 GB.
- Ubigi, $28 for 10 GB. Best Asia, 17 countries. Its 20 GB for $19 is a monthly plan that renews until you stop it.
- Saily, $35.99 for 10 GB. Asia and Oceania, 22 countries, no 20 GB bucket on its listing. Read on saily.com, 25 October 2026.
- ✓Ringo Light, no buckets. Ringo Light's 2 weeks is unlimited for $34.99 and its 30 days unlimited for $59.99. If all you want is 10 GB, Nomad and Airalo are cheaper, and for 20 GB so are Nomad, Airalo and Ubigi's monthly plan. I would choose a bucket only for very light use.
What Ringo Light is
I write for Ringo, so here is where I stand. Ringo Light is its own data eSIM, sold to fund the full Ringo, one plan that works everywhere with your own number ported onto it. For Asia it sells two trips across 20 countries, Thailand and Cambodia among them, both unlimited data at full speed: 2 weeks at $34.99 and 30 days at $59.99. Nothing renews. The eSIM arrives by email in seconds and installs in one scan, no app.
The card to buy it is higher up the page, just below the table.
Pick by trip
I would look at the Thailand page. Ringo Light sells no week, but its Thailand 2 weeks at $22.99 costs less than the Asia plan.
I would buy Airalo unlimited, 3 days, $11.50, or Ubigi's week with 25 GB at $25. Ringo Light has no short plan on the Asia trip.
I would buy Ringo Light unlimited, 2 weeks, $34.99. It is cheaper than any rival for two weeks on a regional plan, and cheaper than Cambodia's own 2 weeks.
I would buy Ringo Light unlimited, 30 days, $59.99.
I would buy Nomad 10 GB for 30 days at $21, if its 14 countries include both of yours.
No travel data plan does that. The full Ringo, which Ringo Light funds, ports the number you have.
Frequently asked questions
How we compared, and our sources
Airalo, Holafly, Saily, Nomad, Ubigi, Ringo Light
We priced Airalo, Holafly, Saily, Nomad, Ubigi and Ringo Light for Thailand and Cambodia on 25 October 2026, all on the same day, in US dollars. Each rival's price comes from its own website where it showed dollars, otherwise from an esimdb.com listing, and every source and its date is listed below. Ringo Light's prices come from the catalogue our checkout charges.
We compare the trips people actually book: a week, two weeks and a month of unlimited data, and a 10 GB bucket. We read each brand's fair use and speed rules and quote them as the brands state them. We did not run speed tests, so this page makes no speed claims for any brand.
Ringo Light is our own product. We put it in the table on the same terms as everyone else, and where a rival is the better buy the page says so.
Left out: Maya Mobile. We could not read its own prices for this country on the day, so it stays out rather than being guessed.
- Airalo: www.airalo.com/asia-esim?currency=USD, Asialink unlimited, 18 countries and the 3 GB daily cap read on the site in dollars, 25 October 2026; 10 GB and 20 GB buckets from esimdb.com/vietnam/airalo, listing dated 4 October 2026
- Holafly: esim.holafly.com/esim-asia/, prices in dollars and the 16-country list on the site, 25 October 2026
- Saily: saily.com/esim-asia-and-oceania/, Asia and Oceania plans, prices in dollars on saily.com, read 25 October 2026
- Nomad: www.nomadesim.com/apac-esim, Regional APAC plans, prices in dollars from the page itself, read 25 October 2026; 20 GB for 45 days is on sale, $40 regular
- Ubigi: cellulardata.ubigi.com/rates-and-coverage/best-asia-data-plans/best-asia-unlimited-30-days/, Best Asia plan pages on cellulardata.ubigi.com, 25 October 2026: 7 days $25, 15 days $45, 30 days $66, 10 GB $28, 20 GB a month $19
- Ringo Light: our own catalogue, the prices the checkout charges on 25 October 2026.
Written and priced by the Ringo team. Prices change often; if you spot one that has moved, tell us through the contact page and we will update the table.
