Asia eSIM: your travel data guide
From Tokyo to Bangkok, Bali to Delhi: everything you need to stay connected in Asia with an eSIM.
Asia at a glance
Asia spans about 44.5 million km² across 48 countries, from Japan in the east to Turkey in the west. It is the world's largest and most populous continent: over 4.7 billion people, 60% of the global population.
For an eSIM traveller, Asia splits into four very different sub-regions: East Asia (Japan, Korea, China, Hong Kong, Taiwan) with world-class connectivity, Southeast Asia (Thailand, Vietnam, Indonesia, Malaysia, Singapore, Philippines) with excellent urban 4G/5G, South Asia (India, Bangladesh, Sri Lanka, Pakistan) in the middle of a 4G transformation, and Central Asia (Kazakhstan, Uzbekistan) playing catch-up.
Asia hosts the world's most advanced 5G countries (South Korea, Singapore, Hong Kong and Japan all sit in Ookla's mobile-speed top 5). At the other end, mainland China runs its own internet (Great Firewall) that blocks Google, WhatsApp, Instagram, X, YouTube and Wikipedia: a travel eSIM with a non-China APN or a VPN is essential.
A few Asia eSIM plans
A selection of multi-country plans to travel anywhere in Asia with a single eSIM.
Transparency: some links in this table are affiliate links. Datadopt may earn a commission at no extra cost to you ; the ranking stays independent.
300 plans of 300 shown
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Explore Asian destinations
For per-country detail on operators, coverage, average prices and FAQ, see our dedicated destination guides.
Japan
Stay connected throughout your trip in Japan
See the guide →
South Korea
Get data everywhere in South Korea
See the guide →
China
eSIM deals in China
See the guide →
Hong Kong
Enjoy mobile internet in Hong Kong
See the guide →
Türkiye
Travel in Türkiye with your eSIM
See the guide →
Thailand
An eSIM for your trip in Thailand
See the guide →
Singapore
Stay connected throughout your trip in Singapore
See the guide →
Malaysia
Get data everywhere in Malaysia
See the guide →
Indonesia
eSIM deals in Indonesia
See the guide →
Connectivity and networks in Asia
4G/5G: South Korea and Singapore offer near-universal 5G coverage; Japan and Hong Kong have 5G in every major city. China runs the world's largest 5G network by tower count. In Southeast Asia, 5G is deployed across the big cities (Bangkok, Kuala Lumpur, Ho Chi Minh, Jakarta, Manila); 4G remains the norm elsewhere.
Average speeds (Ookla Q1 2025): South Korea 140-180 Mbps, Singapore 110-130 Mbps, Hong Kong 110-140 Mbps, Japan 80-110 Mbps, Thailand / Vietnam / Malaysia 40-80 Mbps, Indonesia / Philippines / India 30-70 Mbps, Pakistan / Bangladesh / Sri Lanka 15-40 Mbps.
No cross-country roaming in Asia like the EU/EEA. Each country bills separately. For a multi-country trip (e.g. Thailand + Vietnam + Singapore), a regional Asia eSIM (10 to 22 countries) is the cheapest route, saving 70 to 90% vs. classic international roaming.
Trains and tunnels: continuous mobile coverage on Japan's Shinkansen, Korea's KTX, the China High-Speed Rail (notably Beijing-Shanghai), Taiwan HSR, Hong Kong's MTR and Bangkok's BTS/MRT. Long tunnels (Seikan, Gotemba) can cause brief drops.
Restrictions and the Great Firewall: in mainland China, Google, WhatsApp, Instagram, X, YouTube, Wikipedia, Gmail and Facebook are all blocked. Workaround: a travel eSIM with an international APN (Airalo, Holafly, eSIMx, BNESIM…) bypasses the Great Firewall by routing traffic via Hong Kong. Hong Kong, Macao and Taiwan remain free. Other Asian countries (Japan, Korea, SEA, India) impose no restrictions on Western services.
Sources : Internet Society Pulse · ITU DataHub: Asia-Pacific · Ookla Speedtest Global Index · GSMA Mobile Economy Asia Pacific
Countries in the zone
The Asia zone on Datadopt covers every Asian destination eligible for regional or local eSIMs. Here is how they break down.
East Asia
World-class connectivity, 5G everywhere in cities
Southeast Asia
Strong urban 4G/5G, perfect for long multi-country trips
South Asia
Mature 4G in major cities, uneven rural coverage
Central Asia
4G being rolled out, local operators dominant
Local operators by country
Asia eSIM plans ride on national operator networks. Here are the leading operators in the major destinations.
| Pays | Opérateurs principaux |
|---|---|
| 🇯🇵Japan | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile |
| 🇰🇷South Korea | SK Telecom, KT, LG U+ |
| 🇨🇳China | China Mobile, China Unicom, China Telecom |
| 🇭🇰Hong Kong | CSL, SmarTone, 3HK, China Mobile HK |
| 🇹🇼Taiwan | Chunghwa Telecom, Taiwan Mobile, FET |
| 🇹🇭Thailand | AIS, TrueMove H, dtac |
| 🇻🇳Vietnam | Viettel, Vinaphone, MobiFone |
| 🇮🇩Indonesia | Telkomsel, Indosat Ooredoo, XL Axiata |
| 🇲🇾Malaysia | Maxis, Celcom Digi, U Mobile |
| 🇸🇬Singapore | Singtel, StarHub, M1 |
| 🇵🇭Philippines | Globe, Smart (PLDT), DITO |
| 🇮🇳India | Reliance Jio, Airtel, Vi (Vodafone Idea) |
| 🇵🇰Pakistan | Jazz, Zong, Telenor PK, Ufone |
| 🇧🇩Bangladesh | Grameenphone, Robi, Banglalink |
| 🇱🇰Sri Lanka | Dialog, Mobitel, Hutch |
Frequently asked questions
What is the best eSIM for Asia?
It depends on your itinerary. For a multi-country trip (Japan, Thailand, Vietnam, Bali…), a regional Asia eSIM covers everything on a single plan. For a single-country stay, a local eSIM gives the best price per GB. If your trip includes China, pick an eSIM whose APN bypasses the Great Firewall. Our comparison sorts active plans by price so you can choose by data volume and duration.
How much does a cheap Asia eSIM cost?
Regional plans start around €1 for the first GB on short durations, with the price per GB dropping sharply on larger allowances. A single-country eSIM is often cheaper if you stay in one country. Use the "Price ascending" or "Best price per GB" sort to spot the best deal.
Does an eSIM work in China despite the Great Firewall?
Yes, and it is one of the big advantages of a travel eSIM in China. International eSIMs usually route your traffic outside China (via Hong Kong or Singapore), giving you access to Google, WhatsApp, Instagram and Gmail without a VPN, unlike a local Chinese SIM subject to the Great Firewall. Check that China is included in the plan coverage before buying.
Are there unlimited-data Asia eSIMs?
Yes, many providers offer unlimited-data plans, often with a daily high-speed allowance followed by reduced speed. They make sense in Japan or South Korea where 5G is very fast, or for a long Southeast Asia trip. Filter the comparison on large allowances to weigh them against per-GB offers.
Does an Asia eSIM cover Japan, Thailand and Bali?
Yes, these flagship destinations are in almost every regional Asia eSIM. Coverage and 4G/5G quality are excellent in their urban and tourist areas. That said, the exact country list varies from plan to plan: always check it matches your itinerary before subscribing.
Should I choose a regional or a local eSIM in Asia?
A regional eSIM is more convenient and often cheaper as soon as you cross two or more countries, with no plan change at each border. For a single-country stay, a local eSIM is usually cheaper for the same volume. The comparison lets you weigh both options side by side, sorted by price.
How do I activate an Asia eSIM?
After purchase you receive a QR code to scan in your phone settings (Cellular Data: Add eSIM). Install the eSIM at home before departure while keeping your usual SIM active, then turn on the eSIM data on arrival. The connection is immediate as soon as you pick up a local partner network.