Why tourists choose eSIM in Thailand
In Thai airports, tourist SIMs are sold at counters, but after a long flight, you have to wait in line and show your passport. With eSIM, internet is available immediately: you can call Grab or Bolt, open maps, and message your hotel without leaving the terminal.
How much data do you need in Thailand
Maps, taxis, menu translation, and messengers require 2-4 GB for a week. If you plan to stream, make video calls, or work remotely from the islands, choose packages of 10 GB or unlimited: Wi-Fi in hotels in Phuket and Koh Samui can be unstable.
Coverage on the islands
eSIM works on the networks of major Thai operators, with their list provided in each package. 4G and 5G are available in Bangkok, Chiang Mai, Phuket, Koh Samui, Koh Phangan, and Krabi; on small islands and in national parks, the connection may be weaker, but internet for maps and messengers is usually accessible.