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.

An Asian temple at sunrise — PuraSIM Asia eSIM
45 destinations

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 →
Frequent questions

Your eSIM for Asia, no doubt

Plans have no commitment. The price depends on the GB and days you choose, so you only pay for what you'll actually use. Even a two-week plan with plenty of data costs far less than your carrier's roaming.
The one that connects to each country's leading networks, like AIS in Thailand, NTT Docomo in Japan, or Singtel in Singapore. That way you get the best available 4G/5G without swapping cards, with hotspot and 24/7 support in your language.
For normal use with maps, messaging and social media, count on about 1 GB every 2-3 days. A weekend is covered with 3 GB, and two weeks with 10-20 GB if you stream. When in doubt, go for a bigger plan: topping up later costs more.
Yes. In Bangkok you get 5G at Suvarnabhumi Airport, on the BTS Skytrain and the MRT metro, plus solid 4G at temples, markets and neighborhoods. It's one of the best-covered destinations in Asia.
Yes. The eSIM covers Narita and Haneda, the Yamanote line and Tokyo's entire metro network, with 5G in the central districts. Perfect for leaning on Google Maps and a translator app while you get around the city.
Most phones from 2018 on are: iPhone XS/XR or later, Google Pixel 3 and up, and Samsung's high-end range, among others. It must be carrier-unlocked. In settings you'll see the option to add an eSIM or data plan.
Install it at home over WiFi a few days before you fly; it stays saved and inactive. Activate it when you land in Asia by setting it as your data line. That way you arrive connected, with no need to hunt for shops or airport WiFi.
Yes, in the major cities. South Korea, Singapore, Thailand, Japan, Hong Kong and Malaysia have wide 5G coverage in urban areas. In towns and rural areas you'll browse on 4G LTE, more than enough for maps and messaging.
Yes. You can share your connection via hotspot with your laptop, tablet or another phone, except on specific plans where noted otherwise. It's perfect for working or getting your travel partner online without buying two plans.
No. The Asia eSIM is data-only, so it doesn't include a local phone number. You keep your usual number on your own SIM to get bank SMS or WhatsApp, and you use the eSIM just to browse.
You can top up or buy another plan anytime from your account, without reinstalling anything. That's why it's worth estimating your GB with a little margin; if you fall short, the upgrade is instant.
Yes, and with a bonus: our eSIM for China routes traffic outside the country, so you can use Google, WhatsApp and Instagram without the Great Firewall blocking you. You activate it the same way, by scanning the QR code.
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