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HelloRoam's Asia eSIM starts from €5.60 and taps into 199+ carrier networks across 185+ countries. Scan the QR code and you're online in under two minutes, on any eSIM compatible phone. Your Three Ireland, Vodafone IE, or Eir number keeps running on dual SIM.
199+
local networks
4G/5G
5G support
2 minutes
to activate
![Asia [[networkType]] network speeds](/icons/figma-2026/stats-speedometer.svg){kind=icon}
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Asia data plans covering 30+ countries on local networks
Cheap eSIM for Asia, starting from €5.60. Local 4G/5G data on top carrier networks in Asia. Works on all eSIM compatible phones. Asia is Ireland's most diverse long-haul destination, pulling Irish travellers to Tokyo's neon streets, Bali's rice terraces, Bangkok's street food, and the Maldives' overwater bungalows. HelloRoam's eSIM Asia plans start from €5.60 and cover your chosen country on local networks. Activate by QR code at home before flying from Dublin. No roaming charges, no contract, no physical SIM to source. GDPR-compliant checkout, 180-day refund guarantee on unactivated eSIMs.
Asia eSIM with fast mixed coverage
HelloRoam Asia eSIM covers Japan, South Korea, Thailand, Malaysia, Singapore, Vietnam, Bali, and more on one plan. Irish travellers heading to Asia stay connected across all their destinations without buying SIMs at each stop.
- Plans start at €5.60 with mixed speeds
- Coverage from local networks
- Instant activation in under 2 minutes
- 180-day money-back guarantee
- Asia coverage across major cities
- Network
- mixed
- Plans From
- €5.60
- Activation
- Under 2 min
- Guarantee
- 180 days
How to Set Up an eSIM in Asia
Pick a data plan for your destination and complete checkout online.
Scan the QR code to install your eSIM instantly.
Your eSIM installs instantly and activates the moment you land.
Track usage, top up data, and manage all your eSIMs in one place.
Pick a data plan for your destination and complete checkout online.
Scan the QR code to install your eSIM instantly.
Your eSIM installs instantly and activates the moment you land.
Track usage, top up data, and manage all your eSIMs in one place.
Trip changed? No bother, we have got you sorted.
Travel plans shift, and that's grand. HelloRoam refunds unactivated, unscanned eSIMs in full for up to 180 days after purchase, no drama.
Learn more about our refund policyHelloRoam Asia eSIM vs Three Ireland, Vodafone IE and Eir roaming
Comparing eSIM vs a travel SIM card for Asia? Eir charges up to €5.99/day for Worldwide Roaming, Vodafone IE up to €6.99/day for Global Roaming, and Three Ireland applies daily charges outside its Go Roam zone. Skip the airport SIM counter at Dublin Terminal 1 and get a prepaid eSIM from €5.60 with instant QR activation and a 180-day refund on unactivated eSIMs.
| Feature |  | Irish carrier roaming add-on | Limited data eSIM |
|---|---|---|---|
| 180-day refund policy |  |  | |
| 24/7 live chat support | |  | |
| €0 activation fees | | | |
| Free hotspot and data sharing | | | |
| No data overage charges | | | |
| Instant QR code delivery | | | |
| Premium Asia carrier networks | | | |
Why Travellers from Ireland Use HelloRoam e-sim for Asia
HelloRoam vs Other eSIM Providers for Asia
eSIM provider reviews from Irish travellers consistently highlight the 180-day refund policy, zero activation fees, and 24/7 live support. See how HelloRoam compares to Airalo, Holafly, Saily, and other eSIM providers on the things that matter most for your Asia holiday.
| Feature comparison | | Airalo | Holafly | Nomad | Saily | Ubigi |
|---|---|---|---|---|---|---|
| 180-day refund policy | | | | | | |
| 24/7 live chat support | | | | | | |
| €0 activation fees | | | | | | |
| Free hotspot and data sharing | | | | | | |
| No data overage charges | | | | | | |
| Instant QR code delivery | | | | | | |
| Premium Asia carrier networks | | | | | | |
| Own branded carrier identity (SPN) | | | | | | |
What Is an e SIM? How eSIM Works in Asia
An eSIM is a digital SIM built directly into your phone: no plastic chip, no SIM tray. Scan a QR code to activate in under 2 minutes on any eSIM compatible iPhone or Android. It works as a prepaid data plan for Asia travel with no airport SIM counter, no physical SIM card, and no carrier contract. Sort everything at home before you head to Dublin Airport, Shannon, Cork, or Knock and you are ready to go the moment you land. guide
eSIM Coverage Guide for Irish Travellers Across Asia
Asia spans an enormous range of mobile connectivity quality. Japan and South Korea are among the world's fastest mobile networks. Singapore, Thailand, and Malaysia have strong urban 4G. Vietnam, Indonesia, and the Philippines have solid city coverage.
Cambodia and Myanmar have more limited infrastructure.
Thailand is the most popular Asian destination for Irish holiday travellers. Bangkok, Phuket, Chiang Mai, and Koh Samui all have strong 4G from AIS, DTAC, and True Move. Island areas have coverage in main town and resort zones.
Japan is a growing favourite with Irish travellers. NTT Docomo, SoftBank, and au operate 5G across all major cities. Coverage is near-universal including on the Shinkansen and all Tokyo subway lines.
South Korea's SK Telecom, KT, and LG Uplus have dense 5G in Seoul and across the country. Jeju Island has strong 4G.
Bali has solid 4G in Seminyak, Ubud, Canggu, Kuta, and Nusa Dua from Telkomsel. Vietnam's Ho Chi Minh City and Hanoi have strong 4G from Viettel and Mobifone.
Note: EU Roaming Regulation does not apply anywhere in Asia. Your Irish carrier plan is not valid for data in Asian countries at domestic rates.
- Japan and South Korea rank among the world's fastest mobile networks
- Thailand's main tourist areas have strong 4G
- Bali and major Indonesian islands have solid coverage
- EU Roaming does not apply in Asia: Irish carrier rates are standard international charges
- Remote beaches, jungle, and mountain areas have limited signal
- Download offline maps before remote excursions
SourcesGSMA Mobile Economy Asia Pacific 2025; Ookla Global Speedtest Index 2025
eSIM Travel Tips for Asia
Install Before You Leave Dublin
Asia is a long-haul destination from Dublin. Flights to Bangkok, Tokyo, or Singapore typically connect through London, Dubai, or Amsterdam. Install your HelloRoam Asia eSIM over Wi-Fi before you leave Ireland. You land connected without needing to find and queue at an airport SIM counter.
EU Roaming Doesn't Apply in Asia
Your Three IE, Vodafone Ireland, Eir, or GoMo plan's EU Roaming allowance only works within the EEA. In Thailand, Japan, Bali, or any Asian destination, standard international roaming rates apply if you use your Irish carrier. A HelloRoam Asia eSIM is a more cost-effective option for data throughout Asia.
Thailand's Resorts and Cities Are Reliable
Bangkok, Phuket, Chiang Mai, and Koh Samui all have reliable 4G. AIS, DTAC, and True Move compete across all tourist areas. Beach resort zones are generally well-covered. More remote jungle and mountain areas can have weaker signal.
Japan Delivers Premium Connectivity
Japan is one of the most connected countries in the world. Tokyo's entire subway system has coverage including underground stations. The Shinkansen has in-train 4G and 5G throughout the route. Even rural and mountain areas in Japan generally have 4G coverage. It's a brilliant experience for any Irish traveller.
Download Offline Maps for Remote Bali Areas
Bali's main tourist areas including Seminyak, Ubud, and Canggu are well-connected. Remote eastern Bali, inland mountain areas, and less-visited parts of Lombok can have patchy signal. Download offline maps before driving anywhere remote on the island.
Network Coverage Across Asia
Japan: NTT Docomo, SoftBank, and au operate nationwide 5G and near-universal 4G LTE. Coverage quality is globally exceptional.
South Korea: SK Telecom, KT, and LG Uplus run dense 5G in all urban areas. Seoul's 5G penetration is among the world's highest.
Thailand: AIS, DTAC, and True Move compete across the country. AIS has the widest rural coverage. Bangkok has growing 5G.
Indonesia: Telkomsel dominates with widest coverage. Indosat and XL Axiata compete in urban areas. Bali and Java are well-covered.
Vietnam: Viettel has excellent rural reach by regional standards. Ho Chi Minh City and Hanoi have strong 4G.
Philippines: PLDT and Globe Telecom dominate. Manila and Cebu have solid 4G.
Cambodia: Smart and Metfone cover Phnom Penh and Siem Reap. Rural areas are more limited.
- VVarious Asia-Pacific carriers
- Network carrier
Regional eSIM vs Irish Carrier Roaming for Asia Travel
EU Roaming Regulation does not apply in Asia. Using your Three IE, Vodafone Ireland, or Eir plan in Thailand, Japan, or Bali means paying standard international roaming rates. A HelloRoam Asia eSIM is typically far more cost-effective for any Asian holiday.
Recommended—
One plan covers Thailand, Japan, South Korea, Bali, and more. Buy before leaving Ireland. No SIM hunting at Asian airports. Much better value than Irish carrier international roaming rates for Asia.
—
Separate SIM required for each country. Airport SIM counters have queues. Registration requirements vary. Managing multiple SIMs adds hassle on a multi-country trip.
—
Three IE, Vodafone Ireland, Eir, and GoMo charge standard international roaming rates in Asia. Daily rates can be significant. A two-week Japan plus Thailand trip can accumulate hundreds of euros in carrier roaming charges.
| Category | Recommended | Individual country SIMs | Irish carrier international roaming |
|---|---|---|---|
| Typical cost | — | — | — |
| Details | One plan covers Thailand, Japan, South Korea, Bali, and more. Buy before leaving Ireland. No SIM hunting at Asian airports. Much better value than Irish carrier international roaming rates for Asia. | Separate SIM required for each country. Airport SIM counters have queues. Registration requirements vary. Managing multiple SIMs adds hassle on a multi-country trip. | Three IE, Vodafone Ireland, Eir, and GoMo charge standard international roaming rates in Asia. Daily rates can be significant. A two-week Japan plus Thailand trip can accumulate hundreds of euros in carrier roaming charges. |
Best Times for Irish Travellers to Visit Asia
Thailand is best November through April in the dry season. This aligns with Irish winter sun seekers looking for warmth during the colder months. Japan's spring cherry blossom season (late March to early May) and autumn foliage (October to November) are the most popular periods.
Bali's dry season is April through October. Vietnam's south is best November through April.
Irish summer holidays from June through August see significant travel to Bali and Thailand, though these fall during shoulder or monsoon season in parts of Southeast Asia.
Your Asia eSIM Questions Answered
e SIM Asia plans from HelloRoam start from €5.60 and cover your chosen Asian country on local networks, from Japan to Bali to Singapore. HelloRoam delivers a QR code by email, activated at home before your long-haul flight. No roaming charges from your Irish provider, no physical SIM card, and a 180-day refund guarantee on unactivated eSIMs on every order.
A HelloRoam e-sim Asia plan gives you local data in your chosen country from €5.60, covering Japan, South Korea, Thailand, Vietnam, and 30+ more destinations. Activate at home before your Dublin departure so data is live on arrival. No contract, no roaming fees, and a 180-day refund guarantee on unactivated eSIMs included.
HelloRoam is a top-rated eSIM for travellers from Ireland visiting Asia. Plans start from €5.60 and connect through our worldwide network of 199+ carriers, giving you local 4G/5G speeds in Asia. Activate via QR code in under two minutes, keep your Three Ireland, Vodafone IE, or Eir number on dual SIM, and enjoy a 180-day refund window on unactivated eSIMs. No daily roaming charge and no carrier contract.
A Asia eSIM starts from €5.60. Fixed data plans run from 1GB to 20GB. Unlimited daily plans suit longer trips. All plans include local 4G/5G access with no overage charges and no carrier contract. That is far less than what Eir charges for non-EU Worldwide Roaming or Vodafone IE for Global Roaming.
eSIM in Asia connects to local 4G/5G networks. Your phone picks the strongest available signal automatically on arrival, no manual carrier selection needed. Coverage spans major cities, airports, main roads, and most rural areas. You get the same local network speeds as residents of Asia, not the premium daily rates Eir or Vodafone IE charge for international roaming.
Getting your eSIM for Asia takes three steps. First, choose your plan at helloroam.com and pay in EUR. Second, scan the QR code from your confirmation email in Settings under Mobile Data, then Add eSIM. Third, your e-sim installs in under two minutes and activates when you land. Do everything at home before you head to Dublin Airport, Shannon, Cork, or Knock. No shop visit, no physical SIM swap, no queue.
Yes. iPhone XS and all newer models support your eSIM for Asia. Go to Settings, tap Mobile Data, then Add eSIM, and scan the QR code from your HelloRoam email. Your Irish number stays active on your main SIM through dual SIM while HelloRoam handles all travel data on the eSIM line. iPhone 14 and later are eSIM-only with no SIM tray needed.
No. EU Roam Like At Home applies only within the EEA (EU member states plus Iceland, Norway, and Liechtenstein). In Thailand, Japan, Bali, or any Asian destination, standard international roaming charges apply on your Irish carrier plan. A HelloRoam Asia eSIM is a more cost-effective option.
Japan and South Korea are both covered on the HelloRoam Asia regional plan. NTT Docomo, SoftBank, and au in Japan, and SK Telecom and KT in South Korea deliver world-class 5G speeds. Both are brilliant destinations for Irish travellers. HelloRoam eSIM for HelloRoam Asia eSIM connects to local network with 5G coverage across major tourist and urban areas. Plans start from €5.60. Activate by scanning a QR code before departure. No physical SIM card or airport queue needed.
Bangkok, Phuket, Chiang Mai, and Koh Samui all have strong 4G from AIS, DTAC, and True Move. Island areas have coverage in main town and resort zones. Remote jungle and mountain areas have more limited signal. HelloRoam eSIM for HelloRoam Asia eSIM connects to local network with 5G coverage across major tourist and urban areas. Plans start from €5.60. Activate by scanning a QR code before departure. No physical SIM card or airport queue needed.
