How we test and get paid

What we compare. Every Asia plan from seven providers, 380 of them, across the 14 countries this site documents. For each one we record the price in USD, the data size, the validity window, the local networks the provider is permitted to use in that specific country, the daily cap behind any "unlimited" label, and the country where the provider releases your traffic to the internet. Every number carries the date we checked it, and prices are refreshed monthly.

What we do about gaps. Providers withhold things. Saily does not publish its networks or its exit country for any country here. Yesim does not publish a fair-use cap. Rather than guessing or quietly leaving those cells blank, this site prints not published and treats it as a finding. In a market where every brand claims "best coverage", the refusal to say which network is itself the most useful signal available.

What we do not claim. As of August 2026 we have not run our own speed tests in any of these 14 countries. Where a claim comes from traveler reports we say so and name the source. Where a claim is a model, such as the per-app data estimates, the page says it is a model. We have never published a test we did not run, and when real measurements exist these paragraphs will change.

How the picks are ordered. Network access first, because in Asia the carrier decides whether your phone works outside the cities. Then published caps over unpublished ones. Then price per gigabyte within those constraints. That order is why GigSky leads in Japan and is told to stay away from Taiwan, Singapore and the Philippines on their own pages.

How the money works. Links marked as partner links earn a commission through the Travelpayouts network when you buy. The rate differs by provider, which is exactly why the ranking logic above is written down in public. Three providers on this site, Nomad, Jetpac and Ubigi, earn us nothing and appear anyway, unlinked, including in rows where they are cheaper than everything we can sell you. On the Japan page we tell you that Ubigi has better network access than the pick we earn from. That is the standard we hold, and you should measure us against it.

Who writes this. One researcher, unaffiliated with any operator or eSIM brand. We are not a mobile operator and we sell nothing directly.

Corrections. A stale price, a wrong network claim, a cap that changed: tell us. Verified corrections ship in the next update, and the fact base behind every table is a single dated file, so a fix propagates to every page at once.