Asia eSIM plans
One eSIM works across 18 countries.
Get a travel eSIM for Asia and get online the moment you land — on local networks, from $3.99 with 30% off.
- An eSIM QR code by email, instantly
- Activation on arrival — no roaming charges
- Easy top-ups whenever you need more data
Your Asia eSIM, explained
Roamly's Asia plan spans about 18 countries on a single eSIM, connecting to NTT Docomo and SoftBank in Japan, SK Telecom and KT in Korea, AIS and True Move H in Thailand, Singtel in Singapore, and Telkomsel across Indonesia. 5G is excellent in Tokyo, Seoul, Singapore and Bangkok, but the region is enormous and uneven; expect 4G on Vietnam's Viettel away from cities, and patchy signal on Indonesia's outer islands and Thai dive boats around Koh Tao. For a Bangkok to Singapore to Bali itinerary, one regional plan saves you swapping SIMs at three airports.
The big caveat is China. Behind the Great Firewall, mainland networks like China Mobile block Google, WhatsApp, Instagram and most Western apps, so you'll want a VPN installed before you arrive, or a plan whose traffic routes outside China. Confirm whether CN is even included, since many Asia plans skip it. Each Roamly plan is currently 30% off.
Countries covered
One eSIM works across 18 countries.
Japan
South Korea
China
Thailand
Indonesia
Singapore
Malaysia
Vietnam
India
Philippines
Cambodia
Sri Lanka
Nepal
Taiwan
Hong Kong SAR China
Bangladesh
PakistanAsia eSIM plans
Data-only plans that activate on arrival — every plan has a 30% discount applied.
Data plans
Unlimited data
Why buy your Asia eSIM with Roamly
Trusted local networks
Connect to Asia's leading carriers with 5G where available — no throttled second-rate routes.
30% off included
Every Asia 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 Asia.
How to set up your Asia 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 Asia
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.
Asia eSIM — FAQ
How much does an eSIM for Asia cost?
Plans for Asia start from $3.99, with larger and unlimited options available. Every plan already has a 30% discount applied.
Which networks will I connect to in Asia?
Your eSIM connects to leading local carriers in Asia, using 5G where it's available, so you get data just like a local SIM.
When should I install my Asia eSIM?
Install it as soon as you buy. Most plans only start counting once you arrive in Asia and connect to a local network, so installing early is safe.
Will my phone work with an eSIM in Asia?
If your phone is eSIM-compatible (most models from 2019 onward) and carrier-unlocked, it will work in Asia.
Can I make calls with the eSIM in Asia?
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 Asia.
Will my Asia eSIM get past China's Great Firewall?
It depends on routing. If the plan's data exits through a server outside mainland China, Google and WhatsApp often work; if it connects directly to China Mobile, you'll need a VPN set up before arrival since app stores there block VPN downloads.
Is one Asia plan enough for Japan, Thailand and Indonesia in one trip?
Yes, that is exactly its purpose. The same eSIM hands off to NTT Docomo in Japan, AIS in Thailand and Telkomsel in Indonesia, so a multi-country tour needs no SIM changes between stops.
