Thailand eSIM plans
3 networks
Get a travel eSIM for Thailand and get online the moment you land — on local networks, from $2.49 with 30% off.
Networks in Thailand
Your eSIM automatically connects to leading local networks:
- AIS5G
- True Move H5G
- dtac5G
- An eSIM QR code by email, instantly
- Activation on arrival — no roaming charges
- Easy top-ups whenever you need more data
Your Thailand eSIM, explained
In Thailand a Roamly eSIM connects to AIS, True Move H, or dtac, all running 5G across Bangkok, Chiang Mai, Phuket, and the main tourist hubs. City and resort coverage is excellent and cheap on data, which matters because Grab — for rides and food — is the default way to get around, and it leans on a live connection for booking and tracking. Bangkok and Chiang Mai are smooth; the friction starts when you leave the mainland.
Island gotcha: ferries and the smaller islands are where signal gets unreliable. Boats out to Koh Tao, the Phi Phi islands, or remote parts of Koh Lanta can hit long dead spots mid-crossing, and a few quiet beaches barely register. Pin your Grab pickup, screenshot your ferry and hotel details, and download offline maps before you board so you're not stranded without a route.
Thailand eSIM plans
Data-only plans that activate on arrival — every plan has a 30% discount applied.
Data plans
Unlimited data
Why buy your Thailand eSIM with Roamly
Trusted local networks
Connect to Thailand's leading carriers with 5G where available — no throttled second-rate routes.
30% off included
Every Thailand plan comes with a 30% discount, applied automatically — no codes, no markup.
Ready before you fly
Buy now, install in minutes, and your data is live the moment you reach Thailand.
How to set up your Thailand eSIM
- 1
Buy online
Pick a plan above and check out. Your eSIM QR code is emailed instantly.
- 2
Install the eSIM
Open your phone settings, add an eSIM, and scan the QR code over Wi-Fi before you travel.
- 3
Connect in Thailand
Select the eSIM for data on arrival — most plans activate automatically when you land.
Will it work on my phone?
Roamly eSIMs work on most phones released since 2019 — recent iPhone, Samsung Galaxy, Google Pixel and more. Your device must be eSIM-capable and carrier-unlocked.
Thailand eSIM — FAQ
How much does an eSIM for Thailand cost?
Plans for Thailand start from $2.49, with larger and unlimited options available. Every plan already has a 30% discount applied.
Which networks will I connect to in Thailand?
Your eSIM connects to leading local carriers in Thailand, using 5G where it's available, so you get data just like a local SIM.
When should I install my Thailand eSIM?
Install it as soon as you buy. Most plans only start counting once you arrive in Thailand and connect to a local network, so installing early is safe.
Will my phone work with an eSIM in Thailand?
If your phone is eSIM-compatible (most models from 2019 onward) and carrier-unlocked, it will work in Thailand.
Can I make calls with the eSIM in Thailand?
Our travel eSIMs are data-only, but you can call and message over the internet using apps like WhatsApp, FaceTime, or Telegram while connected in Thailand.
Will Grab work everywhere in Thailand with this eSIM?
In Bangkok, Chiang Mai, and Phuket, yes — coverage is strong and Grab is reliable. On remote islands and during ferry crossings, signal drops, so confirm pickups before you lose data.
Do island ferries to Koh Tao or Phi Phi have signal?
Often not for long stretches mid-crossing. Screenshot your tickets and accommodation details, and download offline maps before boarding.
