eSIM Asia
The eSIM for Asia that connects you to 4G/5G networks in Thailand, Japan, Bali, and dozens of other destinations, with no roaming and activated with a QR in one minute.














































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Why do you need an eSIM for Asia?
Asia is outside the European Union roaming zone, so your Spanish plan doesn't travel with you: as soon as you land in Bangkok, Tokyo, or Bali, every megabyte is charged at a premium. Checking Google Maps, ordering a Grab, or uploading a photo can result in a bill of tens of euros when you return home.
You have three ways to connect, and two are inconvenient: activate your operator's roaming (expensive and with fine print), buy a local SIM at the airport (queues, passport, and losing your number), or rent a pocket WiFi (another device to carry and return). An eSIM solves everything: you buy it online, receive a QR code, and arrive in Asia with data from minute one.
How much does roaming cost in Asia?
As it's outside the EU, Spanish operators apply "Zone 3" or "Rest of the World" tariffs: daily bundles range from €6 to €15 per day, and without a contracted bundle, a single megabyte can cost several euros. Two weeks of travel can easily exceed €100 just for data. An Asia eSIM with several GB costs a fraction of that, so savings often exceed 80%.
How much does an eSIM for Asia cost?
Our plans for Asia have no commitment or contracts: you choose the GB and days you need and pay only for that. You can start with a small plan for a weekend in Singapore or a large one to travel through Southeast Asia for weeks. See all eSIM plans for Asia and choose the one that fits your itinerary.
How many GB do I need for Asia?
It depends on how much you use your mobile outside the hotel WiFi. As a quick guide: maps, messaging, and some social media fall under "normal use"; if you stream, make many video calls, or share data via hotspot, go for "heavy use. " This table guides you based on travel days:
| Duration | Light use | Normal use | Heavy use |
|---|---|---|---|
| 3-4 days | 1 GB | 3 GB | 5 GB |
| 1 week | 3 GB | 5 GB | 10 GB |
| 2 weeks | 5 GB | 10 GB | 20 GB |
What is the best eSIM for Asia?
The best eSIM is one that relies on the premium networks of each country: AIS and TrueMove H in Thailand, NTT Docomo and SoftBank in Japan, Singtel in Singapore, Telkomsel in Indonesia (Bali), CelcomDigi and Maxis in Malaysia, Viettel in Vietnam, and SK Telecom in South Korea. This way, you always connect to the best available 4G/5G without changing your card. Key advantages:
- Connects to the leading local network in each country, not a secondary signal.
- Activation in 1 minute by scanning the QR, without going to any physical store.
- Allows data sharing via hotspot with your laptop, tablet, or another mobile.
- No commitment and 24/7 Spanish support if something goes wrong.
Coverage in Asia: city by city
- Bangkok: 5G at Suvarnabhumi Airport, the BTS Skytrain, and the MRT subway; solid 4G in temples and markets.
- Tokyo: full coverage at Narita and Haneda, the Yamanote Line, and the entire subway, with 5G in central districts.
- Singapore: almost omnipresent 5G, from Changi Airport to the entire MRT network.
- Bali: good 4G in Ngurah Rai, Seminyak, Canggu, and Ubud; weaker signal in rice paddies and the north of the island.
- Kuala Lumpur: 4G/5G at KLIA, KL Sentral, the monorail, and the Petronas Towers area.
- Seoul: one of the best 5G networks in the world, from Incheon Airport to the entire subway network.
eSIM, local SIM, or pocket WiFi
A local SIM can be cheap, but it means queuing at the airport, showing your passport, changing the physical card, and losing your Spanish number. A pocket WiFi provides data to multiple devices, but it's an extra device to carry, monitor, and return, and if you move away from it, you lose connection. An eSIM combines the best of both: you buy it from your couch, it doesn't take up a slot, you keep your number for WhatsApp and bank SMS, and you're online as soon as you land.
How to activate an eSIM for Asia?
- Buy your plan and receive the QR code instantly in your email.
- Install it at home with WiFi, a few days before flying, by scanning the QR in your phone settings.
- Activate it upon arrival in Asia by setting the eSIM as your data line.
- Connect: in one minute you have internet, without looking for stores or changing anything else.
Tips to avoid overspending
- Deactivate data roaming on your Spanish SIM and leave only the eSIM as your data line.
- Download offline maps of your cities to reduce data usage from your plan.
- Use the hotel WiFi for backups, updates, and heavy streaming.
- Choose GB with a margin: if in doubt, upgrade to a higher plan; extending on the fly is more expensive than getting it right from the start.
Traveling to more destinations?
This collection covers the entire Asian continent, from Southeast Asia to the Far East, with a single plan: ideal if you visit several countries on the same trip and don't want an eSIM for each border. If your route focuses on one country, a dedicated plan like the eSIM for Thailand, the eSIM for Japan, or the eSIM for Vietnam might be more cost-effective. For China, consider the Great Firewall: our eSIM for China routes traffic outside the country so you can use Google, WhatsApp, and Instagram normally. And if you keep hopping continents, global plans cover you in dozens of countries with the same eSIM.
Guides for travelling to Asia
See all guides →
The best eSIM for China: how to choose and why a built-in VPN matters
eSIM Singapore: Guide to the Most Connected City-State
Internet in South Korea: How to Get Connected
Internet in China: how to stay connected and use WhatsApp and Google
eSIM for Japan – Tokyo, Kyoto, Osaka & All of Japan
eSIM for India 2 Weeks — Complete Guide for Travelers