eSIM for Thailand: mobile data for Bangkok, Phuket and the islands
Staying online in Thailand with a travel eSIM — coverage in the cities and on the islands, how much data a trip takes, and setting it up before you fly.
In short
- A travel eSIM for Thailand uses the main Thai networks, with fast 4G and 5G in Bangkok, Chiang Mai, Phuket and the resort islands.
- It is installed at home, so you skip the SIM counters at the airport after a long flight.
- Ride-hailing, maps and food delivery apps are part of daily life in Thailand — data helps from the first hour.
- Several countries in Southeast Asia on one trip? A regional package covers them with one eSIM.
Contents
Thailand is the classic first stop in Southeast Asia — temples and street food in Bangkok, the old city of Chiang Mai, the beaches of Phuket, Krabi and Koh Samui. Getting around relies on ride-hailing apps and maps, so a working connection on arrival saves time and taxi haggling. A travel eSIM is ready before you leave home.
Coverage and speed
A travel eSIM for Thailand uses the main Thai mobile networks. Bangkok and the big cities have fast 4G and wide 5G; the popular islands and beach towns are well covered too. On ferries between islands and in national parks the signal can drop for a while.
The networks each package uses are listed on the Thailand page.
How much data do you need?
| Trip | Typical use | Package |
|---|---|---|
| A week in Bangkok | Maps, ride apps, messages | 3 GB |
| Two weeks, city and beach | Plus photos, social media, some video | 5–10 GB |
| A month of travel | Video calls, sharing, streaming | 20 GB or more |
| Working remotely | Laptop hotspot, video meetings | 50 GB |
Thailand and its neighbours
Many trips go on to Malaysia, Singapore, Vietnam, Indonesia or Cambodia. A Southeast Asia regional package covers several of them with one eSIM — no new setup at each border. See the regions on the packages page.
Setting it up
- Check that your phone supports eSIM and is unlocked.
- Buy a package on the Thailand page; the QR code comes to your email and account.
- Install it at home over Wi-Fi — the install guide shows each step.
- When you land, turn on data roaming for the eSIM line and choose it for mobile data. Keep data roaming off on your own line.
Questions and answers
Does the eSIM work on the islands?
Yes — Phuket, Koh Samui, Koh Phangan, Koh Tao, Krabi and the other popular islands are covered by the Thai networks. Between islands at sea the signal can drop for a while.
Can I receive SMS codes from my bank?
Yes, on your own number: your own SIM stays in the phone and keeps receiving SMS as your operator's roaming allows. The eSIM is data only.
When do the package's days start?
When the eSIM first connects to a network in Thailand, not when you buy or install it.
See the packages for Thailand — the price is shown upfront, with nothing added later.
Ready for your trip?
An eSIM for 200 countries: set up in minutes, with no roaming bill.