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A East Asia eSIM from HelloRoam starts at ₹394.02 across 199+ carrier networks in 185+ countries. Scan a QR code to activate in under two minutes on any eSIM compatible mobile. Keep your Jio, Airtel, or Vi number active. 180-day refund cover on unactivated eSIMs and 24/7 live support.
199+
carrier networks
5G and 4G LTE
5G support
under 2 minutes
QR activation
Last updated
Your eSIM East Asia Japan, South Korea, and China Plan with Nationwide Coverage
Affordable eSIM for East Asia, starting from ₹394.02. Local 4G LTE and 5G data on top carrier networks in East Asia. Works on all eSIM compatible phones including OnePlus, Samsung, and iPhone. Indian travellers on East Asia tours visiting Tokyo's temples, Seoul's Gangnam, Beijing's Forbidden City, and Hong Kong's night markets save significantly versus Airtel and Jio roaming. Activate via QR code before departure from India. Plans start at ₹394.02 and data is live from landing.
East Asia eSIM with fast 5G and 4G LTE coverage
HelloRoam East Asia eSIM covers Japan, South Korea, Taiwan, Hong Kong, and Macau on one plan. Indian travellers doing the Tokyo-Seoul-Taipei circuit stay connected with instant data at every destination without buying separate SIMs.
- Plans start at ₹394.02 with 5G and 4G LTE speeds
- Coverage from local networks
- Instant activation in under 2 minutes
- 180-day money-back guarantee
- East Asia coverage across major cities
- Network
- 5G and 4G LTE
- Plans From
- ₹394.02
- Activation
- Under 2 min
- Guarantee
- 180 days
How to Set Up an eSIM in East Asia
Pick a data plan for your destination and complete your purchase online.
Scan the QR code from your confirmation email to install your eSIM.
Your eSIM installs in minutes and activates on arrival at your destination.
Monitor data usage, top up when needed, and manage all your eSIMs in one place.
Pick a data plan for your destination and complete your purchase online.
Scan the QR code from your confirmation email to install your eSIM.
Your eSIM installs in minutes and activates on arrival at your destination.
Monitor data usage, top up when needed, and manage all your eSIMs in one place.
Trip changed? No worries, we have got you covered!
Plans can change, and that is perfectly fine. With HelloRoam, you can request a full refund for an unactivated eSIM within 180 days of purchase. Activated plans are refunded for the unused portion.
Learn more about our refund policyHelloRoam East Asia eSIM vs Jio, Airtel and Vi Roaming
When you compare a East Asia eSIM against a travel SIM card or carrier roaming pack, HelloRoam delivers better value. Jio international roaming costs ₹575 per day. Airtel World Roaming costs ₹596 per day. Vi’s ₹2,999 pack covers just 24 days in select countries. For Indian travellers looking for the most affordable eSIM option, HelloRoam plans start from ₹394.02 with a 180-day refund window on unactivated eSIMs, zero activation fees, and no hidden charges. No airport SIM counter. No carrier contract.
| Feature |  | Jio / Airtel roaming | Limited data eSIM |
|---|---|---|---|
| 180-day refund policy |  |  | |
| 24/7 live chat support | |  | |
| Zero activation fees | | | |
| Keep your Jio or Airtel number active (dual SIM) | | | |
| No data overage charges | | | |
| Instant QR code delivery by email | | | |
| Premium East Asia carrier networks | | | |
Why Indian Travellers Choose HelloRoam for Mobile Data in East Asia
HelloRoam vs Other eSIM Providers for East Asia
Indian travellers searching for the best eSIM for East Asia consistently rate HelloRoam for its industry-leading refund policy, zero activation fees, and 24/7 WhatsApp support. See how HelloRoam compares to Airalo, Holafly, Saily, and other providers on the features that matter most when travelling abroad from India.
| Feature comparison | | Airalo | Holafly | Nomad | Saily | Ubigi |
|---|---|---|---|---|---|---|
| 180-day refund policy | | | | | | |
| 24/7 live chat support | | | | | | |
| ₹0 activation fees | | | | | | |
| Keep your Jio or Airtel number active (dual SIM) | | | | | | |
| No data overage charges | | | | | | |
| Instant QR code delivery | | | | | | |
| Premium East Asia carrier networks | | | | | | |
| Own branded carrier identity (SPN) | | | | | | |
What Is an eSIM? How a Travel eSIM Works in East Asia
An eSIM card is a digital SIM built directly into your mobile phone. There is no plastic chip and no SIM tray to open. Scan a QR code to activate your eSIM in under 2 minutes on any eSIM compatible iPhone or Android. It works as a prepaid mobile data plan for East Asia travel with no airport SIM counter queue, no replacement SIM card, and no carrier contract. Keep your Jio, Airtel, or Vi number active in dual SIM mode while HelloRoam handles your international data. Follow the step-by-step setup guide to get connected before your flight from Delhi IGI or Mumbai CSIA. guide
eSIM Coverage Guide for Indian Travellers in East Asia
East Asia hosts three of the world's top five fastest mobile networks. Japan, South Korea, and Taiwan consistently rank at the top of global mobile network benchmarks. A HelloRoam East Asia regional eSIM connects Indian travellers to these premium networks.
Japan has near-universal network coverage including on the Shinkansen bullet train network, Tokyo's subway system, and even in rural mountain areas. NTT Docomo, SoftBank, and au operate 5G in all major cities. Japan's indoor coverage is exceptional.
This is the most popular destination for Indian travellers in East Asia.
South Korea has one of the world's highest 5G penetration rates. SK Telecom, KT, and LG Uplus operate dense 5G networks in Seoul, Busan, Incheon, and across the country. Coverage on the Seoul Metro is excellent throughout all lines. Jeju Island has strong 4G.
Taiwan connects to Chunghwa Telecom, Taiwan Mobile, and Far EasTone. Taipei's MRT system has full underground coverage. The east coast, Sun Moon Lake, and Kenting are all well-served.
Hong Kong has some of the world's densest mobile coverage. All MTR lines, major buildings, and outdoor areas have excellent 4G and 5G. Hong Kong is a major transit hub for Indian travellers connecting to other East Asian destinations.
Mongolia covers a vast country with coverage primarily in Ulaanbaatar and along main highways. The steppe and Gobi Desert areas have no mobile coverage.
- Japan, South Korea, and Taiwan rank among the world's top five fastest mobile networks
- Excellent subway and underground transit coverage in Tokyo, Seoul, and Taipei
- Japan's Shinkansen has in-train 4G and 5G coverage throughout
- Hong Kong has near-total coverage across the entire city
- Mongolia outside Ulaanbaatar has very limited coverage
- China mainland requires a separate plan due to network restrictions
SourcesOokla Global Speedtest Index 2025; GSMA 2026; HelloRoam Partner Network Data 2025
eSIM Travel Tips for East Asia
Install Your eSIM in India Before Your East Asia Trip
Install your HelloRoam East Asia eSIM at home in India over Wi-Fi before your departure. Flights from Mumbai, Delhi, or Bangalore to Tokyo, Seoul, or Hong Kong are long-haul journeys. Having your eSIM installed before you board means you step off the plane in Tokyo or Seoul and your phone connects to the local network immediately.
Japan's Shinkansen and Subway Have Excellent Coverage
Japan's Shinkansen bullet train network has 4G and 5G in-train coverage throughout. Tokyo's subway has coverage on all lines including underground stations. You can stream video or work on trains across Japan without Wi-Fi. This makes Japan one of the most connectivity-friendly travel experiences in the world.
Seoul's Metro Has Full 5G Coverage
Seoul's Metropolitan Subway system has 5G coverage on all lines, including underground segments. Busan's metro is also well-covered. South Korea's indoor 5G penetration is among the highest globally. You will have reliable data at almost every indoor and outdoor location in Seoul.
Hong Kong Is a Great Transit Point for Indian Travellers
Hong Kong International Airport is a major transit hub for Indian travellers connecting to other East Asian destinations. Hong Kong's entire territory has near-total 4G and 5G coverage. The MTR system covers all underground and above-ground lines. A Hello Roam East Asia eSIM activates as soon as you arrive in Hong Kong.
Japan Uses Separate Network Technology for Some Services
Japan's mobile networks operate on frequencies that differ from Indian standards. Ensure your phone is unlocked and supports the correct 4G LTE bands for Japan. Most modern iPhones and flagship Android devices sold in India support Japanese network frequencies. Check your phone's specifications before you travel.
Network Coverage Across East Asia
East Asia
East Asia's mobile networks represent the global benchmark for speed and reliability.
Japan's NTT Docomo, SoftBank, and au operate nationwide 5G with 4G LTE covering virtually the entire country including rural mountain areas. Japan's network quality is consistently ranked among the world's best. Subway and underground coverage is standard practice across all major Japanese cities.
South Korea
South Korea's SK Telecom, KT, and LG Uplus have deployed some of the world's densest 5G networks. Seoul's 5G penetration is among the highest globally. Even remote areas of Gangwon Province have solid coverage.
Taiwan's Chunghwa Telecom, Taiwan Mobile, and Far EasTone operate competitive 4G and 5G networks. Taipei has excellent coverage throughout the MRT system and urban areas. East coast routes and mountain passes have good coverage.
Hong Kong's PCCW, HKT, CSL, and other operators cover this compact territory completely. Hong Kong is one of the world's most densely networked places.
Mongolia's Mongolia Telecom and Unitel cover Ulaanbaatar and main highways. The vast steppe, Gobi Desert, and remote mountain areas have no coverage.
- NTT Docomo (Japan)
- Network carrier
- SSK Telecom (South Korea)
- Network carrier
- KKT (South Korea)
- Network carrier
- CChunghwa Telecom (Taiwan)
- Network carrier
- PPCCW (Hong Kong)
- Network carrier
- MMongolia Telecom
- Network carrier
Regional eSIM vs Local SIMs vs Indian Carrier Roaming for East Asia Travel
East Asia is a premium travel destination for Indian travellers. Local SIMs at Tokyo or Seoul airports are available but require time and registration. Indian carrier roaming rates for Japan and South Korea are among the most expensive international roaming destinations.
Recommended—
One plan covers Japan, South Korea, Taiwan, Hong Kong, and more. Buy before leaving India. No airport SIM queues in Tokyo or Seoul. No registration paperwork. No hidden charges. Significantly better value than Jio, Airtel, or Vi roaming rates for Japan and South Korea.
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Airport SIM counters in Tokyo and Seoul have long queues especially on arrival. Prepaid tourist SIMs require passport registration. A separate SIM is needed for each country on your itinerary. Total cost across Japan, South Korea, and Taiwan is significant.
—
Jio, Airtel, and Vi international roaming rates for Japan and South Korea are among the highest-priced international destinations for Indian carriers. A 7-day Japan trip can cost several thousand rupees in roaming fees alone. A HelloRoam East Asia eSIM offers substantially better value.
| Category | Recommended | Airport SIMs in Japan and South Korea | Indian carrier international add-on (Jio/Airtel/Vi) |
|---|---|---|---|
| Typical cost | — | — | — |
| Details | One plan covers Japan, South Korea, Taiwan, Hong Kong, and more. Buy before leaving India. No airport SIM queues in Tokyo or Seoul. No registration paperwork. No hidden charges. Significantly better value than Jio, Airtel, or Vi roaming rates for Japan and South Korea. | Airport SIM counters in Tokyo and Seoul have long queues especially on arrival. Prepaid tourist SIMs require passport registration. A separate SIM is needed for each country on your itinerary. Total cost across Japan, South Korea, and Taiwan is significant. | Jio, Airtel, and Vi international roaming rates for Japan and South Korea are among the highest-priced international destinations for Indian carriers. A 7-day Japan trip can cost several thousand rupees in roaming fees alone. A HelloRoam East Asia eSIM offers substantially better value. |
Best Times for Indian Travellers to Visit East Asia
Japan's most popular seasons for Indian travellers are spring (late March to early May) for cherry blossoms and autumn (October to November) for foliage. Both seasons see high hotel prices and crowds but are widely regarded as the most beautiful times to visit. Winter (December to February) is quieter and offers skiing in Hokkaido.
South Korea follows similar seasonal patterns to Japan. Spring cherry blossom season (March to April) and autumn foliage (October to November) are the most popular times. Winter is cold but manageable for urban travel in Seoul. Summer (June to August) is hot and humid with a monsoon season.
Taiwan is pleasant year-round. Spring and autumn are the most comfortable. Typhoon season runs from June through October.
Hong Kong is pleasant from October through April. Summer is hot and humid with occasional typhoons.
East Asia eSIM Questions Answered
East Asia eSIM plans from HelloRoam start at ₹394.02 on Local network provider 4G/5G networks covering Japan, South Korea, China, and Hong Kong. Activate via QR code before departure from India with no hidden charges and no Airtel or Jio roaming bill.
An e SIM East Asia plan from HelloRoam covers Local network provider 4G/5G networks across Japan, South Korea, and China from ₹394.02. Indian East Asia travellers get instant QR code setup from India, transparent pricing, and no hidden fees.
HelloRoam is a top-rated eSIM for East Asia for travellers departing from India. Plans start from ₹394.02, which is far below Jio international roaming at ₹575 per day or Airtel World Roaming at ₹596 per day. Before your flight from Delhi IGI (IGIA), Mumbai CSIA (BOM), Bengaluru Kempegowda (BLR), Hyderabad Rajiv Gandhi (HYD), Chennai (MAA), or Kochi (COK) airport, scan a QR code in your phone settings and the eSIM is ready the moment you land. You get local 4G/5G speeds, a 180-day refund window on unactivated eSIMs, and 24/7 WhatsApp support. No carrier contract, no hidden charges, no bill shock.
eSIM plans for East Asia start from ₹394.02. Compare that with Jio international roaming at ₹575 per day, Airtel World Roaming at ₹596 per day, or Vi's ₹2,999 pack for just 24 days in select countries. For a 7-day trip, Jio roaming costs around ₹4,025 and Airtel costs around ₹4,172. A HelloRoam plan for the same trip typically costs a fraction of that, with no daily billing and no BSNL international rates either. Pay by UPI, Google Pay, debit card, or credit card.
eSIM in East Asia connects to local 4G/5G carrier networks. Your phone selects the strongest available signal automatically on arrival, the same way a local resident's phone does. Coverage spans major cities, airports, highways, and popular tourist areas. No manual APN setup required. HelloRoam partners with hundreds of carrier networks across 185+ countries. For travellers used to Jio or Airtel coverage in India, the local network speeds in East Asia are often comparable or better in urban areas.
Getting a East Asia eSIM before your flight from India takes three steps. First, visit helloroam.com, search East Asia, pick a plan, and pay by UPI, Google Pay, or card. Second, open your confirmation email and scan the QR code in your phone settings under Add eSIM. Third, your eSIM installs in under 2 minutes and activates automatically when you land. No airport kiosk, no SIM counter at Delhi IGI or Mumbai CSIA, no waiting in a queue after a long flight.
Yes. iPhone XS and all newer models work with eSIM in East Asia. Go to Settings, tap Cellular or Mobile Data, then Add eSIM, and scan the QR code from your HelloRoam email. Your Jio or Airtel number stays active through dual SIM while HelloRoam handles your travel data in East Asia. No carrier unlocking is needed for iPhones purchased directly from Apple in India. For iPhones bought on a carrier plan, do check with Jio or Airtel for unlock eligibility.
A HelloRoam East Asia regional eSIM covers both Japan and South Korea on one plan. This is the most popular East Asia combination for Indian travellers. Your phone switches from NTT Docomo or SoftBank in Japan to SK Telecom or KT in South Korea automatically at the border.
Tokyo and Osaka have near-total 4G and 5G coverage from NTT Docomo, SoftBank, and au. All Tokyo subway lines and Osaka's metro have underground coverage. Shinkansen routes between Tokyo and Osaka have in-train coverage throughout the journey. HelloRoam eSIM for HelloRoam East Asia eSIM connects to local network with 5G coverage across major tourist and urban areas. Plans start from ₹394.02. Activate by scanning a QR code before departure. No physical SIM card or airport queue needed.
Seoul and Busan have excellent 5G coverage from SK Telecom, KT, and LG Uplus. Seoul's metropolitan subway has 5G coverage on all lines. Busan's metro is also well-covered. Jeju Island has strong 4G throughout the island. HelloRoam eSIM for HelloRoam East Asia eSIM connects to local network with 5G coverage across major tourist and urban areas. Plans start from ₹394.02. Activate by scanning a QR code before departure. No physical SIM card or airport queue needed.
