PLAN YOUR TRIP
SIM cards, eSIM and internet in Asia
Mobile data is cheap and fast across most of Asia, but the way you buy it varies.
Local SIM or eSIM
A local prepaid SIM bought at the airport is usually the cheapest option for a single country. An eSIM is more convenient for a multi-country trip, and can be set up before you land — but check your phone supports it and is not carrier-locked.
RegistrationMany countries require SIM cards to be registered against a passport. Buy from an official operator counter rather than a street stall, and keep the receipt.
Where access is restricted
A number of countries filter or block parts of the internet, including services travellers rely on for messaging and maps. Download offline maps and save your booking confirmations before you arrive.