HelloRoam offers eSIM data plans for Asia, starting from A$9.20 a day. Your e SIM links up with local 4G/5G networks the moment you land, no roaming fees. Activate by QR code in under two minutes and keep your Telstra, Optus, or Vodafone number for calls. No lock-in contract: one e-sim covers 185+ countries through 212+ carrier networks.
- networks
212+- 5G support
4G/5G- activation
under 2 minutes
Updated
Asia sim Plans for Every Trip Length
Cheap eSIM for Asia, starting from A$9.20. Local 4G/5G data on trusted carrier networks in Asia. Works on all eSIM compatible phones. A eSIMs Asia plan starts from A$9.20 on Local network provider 4G/5G networks. Activate by QR code at home before you fly from Australia. Choose from 1 GB to 20 GB plans to match your trip. No physical SIM needed, no lock-in contract, and your Australian number stays active.
Asia eSIM with fast 4G/5G coverage
HelloRoam Asia eSIM covers 48 countries with one plan. Travellers hopping from Japan to South Korea to Thailand to Vietnam stay connected without buying a SIM at each border. Plans start at A$0.78 per day.
- Plans start at A$9.20 with 4G/5G speeds
- Coverage from local networks
- Instant activation in under 2 minutes
- 180-day money-back guarantee
- Asia coverage across major cities
- Network
- 4G/5G
- Plans From
- A$9.20
- Activation
- Under 2 min
- Guarantee
- 180 days
How to Set Up an eSIM in Asia
Follow these steps to set up your eSIM card on iPhone or Android. Works for any e-sim for international travel, no replacement SIM, no store visit.
Set up an eSIM on your iPhone with the HelloRoam app
Set up an eSIM on your Android with the HelloRoam app
- 1
Choose your plan and checkout online
Select a data plan for your destination and complete checkout.
2Scan the QR code
Scan the QR code to install your eSIM straight away.
- 3
Activate in minutes: ready on arrival
Your eSIM installs instantly and activates when you land.
4Manage it all from our app
Track usage, top up data, and manage all your eSIMs in one place.
Trip changed? No worries, we've got you covered!
Plans can change anytime, and that's fine. With HelloRoam, you can request a refund on any unactivated eSIM within 180 days of purchase.
Learn more about our refund policyHelloRoam Asia eSIM vs Telstra, Optus and Vodafone AU roaming
When comparing eSIM vs a travel SIM card for Asia, HelloRoam wins on price. It beats Telstra International Day Pass (A$10/day), Optus Travel Pass (A$5/day), and Vodafone AU daily roaming fees. The cheapest eSIM plan starts from A$9.20, with no activation fee and a refund on unactivated eSIMs within 180 days.
| Feature comparison | HelloRoam | Telstra / Optus roaming add-on | Limited data eSIM |
|---|---|---|---|
| Refund on unactivated eSIMs |  Feature available |  Feature not available | Feature not available |
| 24/7 live chat support | Feature available |  Feature available | Feature available |
| $0 activation fees | Feature available | Feature not available | Feature available |
| Free hotspot and data sharing | Feature available | Feature not available | Feature not available |
| No data overage charges | Feature available | Feature not available | Feature not available |
| Instant QR code delivery | Feature available | Feature not available | Feature available |
| Premium Asia carrier networks | Feature available | Feature not available | Feature not available |
Is a HelloRoam eSIM better than an Asia SIM card for Australians island-hopping?
Buying a SIM card for Asia in every country you visit means a new carrier, a new card, and a new setup in each destination. A HelloRoam eSIM installs once by QR code at home in Australia, covers multiple Asian countries on one plan, and runs on Local network provider 4G/5G networks from A$9.20 with no physical SIM swap.
A prepaid SIM card Asia option from an airport kiosk in Bangkok, Singapore, or Tokyo typically covers one country only. HelloRoam gives you multi-country Asia coverage on a single prepaid plan from A$9.20 with a 180-day refund guarantee on unactivated eSIMs and no lock-in contract.
A data sim card Asia from a local shop can be difficult to track down between connections. HelloRoam sends your QR code by email before you board in Australia so you have a working data sim card Asia-wide before you land.
An unlimited eSIM Asia plan on HelloRoam works on Local network provider 4G/5G networks. No physical card means no SIM swap as you cross borders, and no risk of losing your Australian SIM while travelling.
Finding a eSIM card Asia that covers multiple countries at a fair price used to mean research and multiple purchases. HelloRoam combines it into one plan from A$9.20 with data live from the first country you land in.
Looking for the cheapest eSIM for Asia? HelloRoam plans start from A$9.20 with no contract, no physical SIM required, and coverage across Southeast and East Asia on one purchase.
Why Aussie Travellers Pick an e-sim for Asia
24/7 Round-the-clock chat support
Need a hand at 2am before a Bali flight? HelloRoam support is available 24/7. Message us and a real person responds in under 2 minutes. Whether you're troubleshooting mobile data mid-trip or need a top-up on your prepaid data package, help arrives fast.
The best eSIM for Asia travel
Connect to local 4G/5G networks the moment you land in Asia, at a fraction of what Telstra, Optus, or Vodafone AU charge for international roaming. Plans start from A$9.20 with no lock-in contract and no activation fees. It's the most affordable way to get internet abroad without a Telstra Day Pass eating into your travel budget.
Keep your Telstra, Optus, or Vodafone AU number
Keep your Telstra, Optus, or Vodafone AU number active for calls and texts. HelloRoam handles your data through a second eSIM line on any dual SIM compatible phone. Your wireless connectivity for data runs separately, so friends and family back home can still reach your usual number.
212+ partner networks worldwide
HelloRoam connects to 212+ carrier networks across 185+ countries. Fixed data and unlimited data plans available. Your phone switches to the strongest available 4G/5G signal automatically. With cellular coverage this broad, you get reliable internet abroad whether you're in a city centre or off the beaten track.
Usage alerts before you run out
HelloRoam alerts you at 80% usage so you're never caught short mid-trip. Top up instantly from the app without reinstalling your eSIM. Adding more mobile data takes under a minute, so your prepaid data package keeps up with your trip rather than the other way round.
Fast local network speeds
Connect on trusted local 4G/5G networks in Asia. HelloRoam picks the strongest signal for calls, navigation, and streaming. Local network speeds mean you get the same fast mobile data as residents use every day.
Global and regional plans
Planning a multi-country trip? HelloRoam regional eSIMs cover Asia Pacific, Europe, and 185+ destinations in one purchase. eSIMs for Europe span 34+ countries. Japan, Bali, Thailand, and NZ all sorted. One prepaid data package covers your whole itinerary, with no SIM card to swap at each border.
Hotspot and data sharing in Asia
Share your Asia eSIM data with a laptop or tablet using your phone's hotspot. No extra fees, no setup. Works on all eSIM compatible phones. Your wireless connectivity extends to every device in the group, so the whole crew stays online from a single prepaid data package.
Best eSIM for Asia: Prices and Plans
HelloRoam, the best eSIM Asia. Compare plans and save versus Telstra, Optus, and Vodafone roaming.
| Number of days | Price (AUD) |
|---|---|
| 1 day | A$14.82 |
| 3 days | A$42.23 |
| 7 days | A$91.29 |
| 15 days | A$177.85 |
| 22 days | A$241.27 |
| 30 days | A$302.35 |
HelloRoam vs Other eSIM Providers for Asia
For Asia, HelloRoam offers a refund on unactivated eSIMs within 180 days, A$0 activation fees, and 24/7 live chat support. See how HelloRoam compares to Airalo, Holafly, Saily, and other eSIM providers on the features that matter most.
| Feature comparison | HelloRoam | Airalo | Holafly | Nomad | Saily | Ubigi |
|---|---|---|---|---|---|---|
| Refund on unactivated eSIMs | Feature available | Feature not available | Feature not available | Feature not available | Feature not available | Feature not available |
| 24/7 live chat support | Feature available | Feature available | Feature available | Feature not available | Feature available | Feature available |
| A$0 activation fees | Feature available | Feature not available | Feature available | Feature not available | Feature not available | Feature not available |
| Free hotspot and data sharing | Feature available | Feature not available | Feature not available | Feature not available | Feature not available | Feature not available |
| No data overage charges | Feature available | Feature not available | Feature available | Feature not available | Feature not available | Feature not available |
| Instant QR code delivery | Feature available | Feature available | Feature available | Feature available | Feature available | Feature available |
| Premium Asia carrier networks | Feature available | Feature not available | Feature not available | Feature not available | Feature not available | Feature not available |
| Own branded carrier identity (SPN) | Feature available | Feature not available | Feature not available | Feature not available | Feature not available | Feature available |
What Is an eSIM Card? How e SIM Works for Asia Travel
An eSIM card is a digital SIM built directly into your phone. No plastic chip and no SIM tray to deal with. Scan a QR code to activate your e SIM in under two minutes on any eSIM compatible iPhone or Android. It works as a prepaid mobile data plan for Asia travel with no airport SIM shop queue, no replacement SIM card, and no carrier contract. Follow the step-by-step setup guide to get connected before your flight from Sydney Airport (SYD), Melbourne Airport (MEL), or Brisbane Airport (BNE). guide
eSIM coverage guide for Asia travel
Asia covers an enormous range of mobile network quality, from Japan's world-leading 5G to remote mountain areas in Central Asia with no signal at all. A HelloRoam Asia regional eSIM keeps you connected across the most popular travel corridors without buying a new SIM at each border.
East Asia (Japan, South Korea, Taiwan, Hong Kong) has some of the world's fastest and densest mobile networks. Japan's Shinkansen bullet trains have in-carriage 5G. Seoul's entire subway system has underground coverage.
Southeast Asia's main tourist trail (Thailand, Vietnam, Cambodia, Bali, Malaysia, Singapore) has good 4G coverage in cities and resort areas. Singapore has near-perfect 5G.
South Asia (India, Sri Lanka, Nepal) has strong urban 4G in major cities and more limited coverage in mountain and rural areas. Nepal's Himalayan trekking routes have no coverage beyond Kathmandu and Pokhara.
Central Asia (Kazakhstan, Uzbekistan) has functional coverage in capitals but limited signal in remote areas.
- One plan covers 48 countries across Asia
- Japan, South Korea, and Singapore offer world-class 5G networks
- Southeast Asia is the most popular multi-country travel corridor
- Automatic carrier switching at each border crossing
- Mountain and rural areas in South and Central Asia have limited coverage
- Download offline maps before remote treks and island hops
- GSMA Mobile Economy Asia Pacific 2025;
- HelloRoam Partner Network Data 2025
eSIM Travel Tips for Asia
Japan has excellent indoor and transit coverage
Japan's mobile networks are among the world's best with very strong indoor coverage, including on subway systems and the Shinkansen bullet train network. NTT Docomo, SoftBank, and au cover every major city and tourist area. Download offline maps for hiking trails in areas like Kumano Kodo and the Japanese Alps.
No data on Southeast Asian island ferries
Ferry routes between Thai islands (Koh Samui, Koh Phangan, Koh Tao), Indonesian islands (Bali to Lombok, Gili Islands), and Philippine islands have no mobile coverage while at sea. Your HelloRoam eSIM resumes when you dock at the next island. Download offline maps and accommodation details before each ferry crossing.
Himalayan treks have no coverage on trails
Nepal's Kathmandu has reasonable 4G from Ncell and Nepal Telecom. Everest Base Camp, Annapurna Circuit, and Langtang trails have no mobile coverage above certain altitudes. Download offline maps, emergency contacts, and trekking route details before leaving Kathmandu or Pokhara.
China requires a separate plan
China has very specific network access rules and a separate internet environment including the Great Firewall. Most Asia regional plans do not include mainland China. If your trip includes China, check whether a China-specific add-on is available or buy a separate China plan. Hong Kong and Macau use open networks and are covered separately.
Singapore is your reliability checkpoint
When transiting through Singapore Changi Airport, test your HelloRoam eSIM thoroughly. Singapore's network is near-flawless and any eSIM activation issue will show up here before you reach a destination with weaker infrastructure. Singtel, StarHub, and M1 all provide excellent coverage at Changi.
Check Smart Traveller for any Asia destination
The Australian Government's Smart Traveller website at smartraveller.gov.au covers all Asian countries. Register your trip and check travel advisories before departing. Australia has embassies and consulates across Asia, including in Tokyo, Bangkok, Jakarta, Delhi, Beijing, Seoul, and Singapore.
Emergency numbers vary across Asia
Emergency numbers differ by country across Asia. Japan uses 110 (police) and 119 (fire and ambulance). South Korea uses 119 (fire and medical) and 112 (police). Thailand uses 191 (police) and 1669 (ambulance). Vietnam uses 113 (police) and 115 (ambulance). Research and save the correct numbers for every country on your itinerary.
Network coverage across Asia
Asia hosts the world's most advanced and some of the world's most limited mobile networks side by side.
NTT Docomo provides near-universal 5G rollout and underground subway coverage in all major Japanese cities. South Korea's SK Telecom, KT, and LG Uplus have the highest 5G penetration rates globally. Singapore's three major carriers provide near-perfect 4G and 5G in one of the world's smallest and most connected countries.
India's Reliance Jio has built out nationwide 4G and growing 5G across the country. Airtel India competes strongly in urban markets. Rural India remains more patchy.
Southeast Asia
Southeast Asia's networks are rapidly improving. Thailand's AIS provides the strongest rural 4G across the country. Vietnam's Viettel reaches most of the country including the Ha Giang Loop and Mekong Delta.
Central Asian countries
Central Asian countries (Kazakhstan, Uzbekistan, Kyrgyzstan) have functional coverage in major cities and along main highways. Remote mountain and steppe areas have minimal signal.
- Various Asia-Pacific carriers
Regional eSIM vs country-by-country plans
For a classic Southeast Asia backpacker route or an East Asia circuit, a regional eSIM saves time and money versus buying SIMs at every border.
| Category | HelloRoam Regional Asia eSIM Recommended | Individual country SIMs | Telstra, Optus, or Vodafone AU international roaming |
|---|---|---|---|
| Typical cost | — | — | — |
| Details | One plan for 48 countries. Buy once before departure. Automatic switching at borders. No SIM queues at Bangkok, Tokyo, or Seoul airports. Consistent pricing for your whole trip. | Buy a new SIM at every border. Registration required in Japan, South Korea, India, and Indonesia. You lose your number each time. Total cost of multiple SIMs adds up significantly for a 5-country trip. | Australian carriers charge around $10 per day for Asian data. A 21-day trip to five Asian countries adds AU$210 in roaming fees. Most plans throttle to slow speeds after a small daily cap. |
Prices approximate as of . Actual savings vary.
Best times for Asian travel
Asia's travel seasons vary dramatically by subregion. Southeast Asia's dry season from November to April is peak travel time for Thailand, Vietnam, Cambodia, and Laos. Network demand peaks in popular tourist areas like Bangkok, Chiang Mai, Bali, and Hoi An during these months.
Japan's cherry blossom season (late March to early April) and autumn foliage season (mid-October to November) are peak travel periods. Tokyo and Kyoto networks see heavy demand at popular viewpoint areas.
South Korea's spring (April to May) and autumn (September to October) are peak seasons. Jeju Island sees its busiest periods in July and August.
The Indian subcontinent's cooler dry season from October to March is the best time to visit Rajasthan, Kerala, and the major cities.
Explore Countries in Asia
Japan
From $3
HelloRoam covers Japan with 4G/5G plans across Tokyo, Osaka, and Kyoto. Stay connected without swapping SIM cards.
Activate before landing. NTT docomo 5G covers cities. Airport WiFi has 30-minute limits.
China
From $3
Get HelloRoam data in China covering Shanghai, Beijing, and more. Skip the hassle of local SIM cards.
China Mobile and Unicom run 5G in major cities. Download WeChat and maps offline before crossing.
Thailand
From $3
HelloRoam offers Thailand eSIM plans for Bangkok, Phuket, and Chiang Mai. Connect the moment you land.
AIS and TrueMove H run 5G in Bangkok. Coverage reaches Thai islands but drops in rural areas.
India
From $4
HelloRoam offers India eSIM plans for Mumbai, Delhi, and beyond. Stay online across the subcontinent.
Vodafone and Vi India cover 4G in cities. Mumbai metro has limited underground signal.
Vietnam
From $3
Stay connected in Vietnam with HelloRoam eSIM data for Hanoi, Ho Chi Minh City, and Da Nang.
Vinaphone covers 4G across Vietnam. Speed is solid in Hanoi but drops on island ferries.
Indonesia
From $3
HelloRoam keeps you online in Indonesia, from Bali to Jakarta. Get data that works right away.
Telkomsel covers 5G in Jakarta. Signal drops on Bali north coast, so save offline maps.
Bangladesh
From $3
Get HelloRoam eSIM data in Bangladesh covering Dhaka, Chittagong, and other major areas.
Banglalink 4G covers Dhaka and Chittagong. Signal can be congested in Dhaka at peak hours.
Hong Kong
From $3
HelloRoam gives you eSIM data in Hong Kong, covering Kowloon, Central, and the New Territories.
CMHK 5G covers Hong Kong. MTR metro has full signal underground. Activate before landing at HKG.
Kazakhstan
From $3
Stay online across Kazakhstan with HelloRoam eSIM data for Almaty, Astana, and beyond.
Beeline 4G covers Kazakhstan. Almaty has strong signal. The Kazakh steppe has limited coverage.
Kyrgyzstan
From $3
HelloRoam gives you mobile data in Kyrgyzstan for Bishkek, Osh, and popular travel routes.
Beeline 4G covers Bishkek. Coverage is limited in the Tien Shan mountains near Karakol.
Laos
From $4
Stay connected in Laos with HelloRoam eSIM plans for Vientiane, Luang Prabang, and Vang Vieng.
Lao Telecom 5G covers Vientiane and Luang Prabang. Remote rural areas have limited coverage.
Malaysia
From $3
HelloRoam provides eSIM data across Malaysia, from Kuala Lumpur to Penang and Langkawi.
CelcomDigi and U Mobile run 5G in Kuala Lumpur. Signal thins in Borneo's interior.
Pakistan
From $1
Philippines
From $2
Stay online in the Philippines with HelloRoam eSIM plans for Manila, Cebu, and Boracay.
Globe and SMART run 5G in Manila and Cebu. Inter-island ferry crossings often lose signal.
Singapore
From $3
HelloRoam provides eSIM data for Singapore. Get fast coverage across the entire city-state.
StarHub, M1, and SingTel run 5G in Singapore. MRT has full underground coverage.
South Korea
From $3
HelloRoam offers South Korea eSIM plans for Seoul, Busan, and Jeju Island. Connect on landing.
LG U+ and SKTelecom run 5G across South Korea. Seoul Metro has full underground coverage.
Sri Lanka
From $3
Get HelloRoam data in Sri Lanka covering Colombo, Kandy, and southern beach towns.
Mobitel 4G covers Colombo and Kandy. Signal drops in the tea country highlands.
Uzbekistan
From $3
HelloRoam offers Uzbekistan eSIM data plans for Tashkent, Samarkand, and Bukhara.
Beeline 5G covers Tashkent and Samarkand. Remote Nuratau mountains have limited signal.
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Reviews
What Our Customers Say
Real reviews from Trustpilot and the App Store, quoted as written.
40k+ travellers have used HelloRoam
Cat
On a trip to Europe, my hotel Wi-Fi was so slow and outside Wi-Fi was unreliable. I couldn’t take it anymore so I got helloroam for a few days. It was tricky to set up correctly because of the primary settings (with my original number). But I reached out to their customer service via WhatsApp. Super responsive and helpful, with specific and clear steps to troubleshoot. Appreciate having 4G roaming instead of being stuck with in and out Wi-Fi during my trip!!
Rated 5 out of 5 by this reviewer
Very good experience! The eSIM was easy to set up and worked great in London. It was much cheaper than it would have been to use my own operator there.
Ilona
Rated 5 out of 5 by this reviewer
metulker
Hard to set up but help was good
Rated 5 out of 5 by this reviewer
Reuben
Really happy with HelloRoam. Everything worked as expected, from messaging and Google Maps through to streaming without any issues. Easy to use, reliable and affordable. Would happily use them again when travelling.
Rated 5 out of 5 by this reviewer
Angeline
Reliable connection. Reasonable pricing.
Rated 4 out of 5 by this reviewer
FAQs About eSIM in Asia
How much does an Asia eSIM plan cost for Australians doing a multi-country trip?
Your travel eSIM Asia from HelloRoam starts from A$9.20 on Local network provider 4G/5G networks. A travel eSIM Asia plan is ideal for Australians doing multi-country trips across Southeast and East Asia. HelloRoam sends your QR code by email at purchase. Scan it at home and data is live when you land. No physical SIM card required, no roaming charges.
Which Asia e-sim plan works across Southeast and East Asia on one purchase?
An unlimited data eSIM Asia from HelloRoam covers Southeast and East Asia on one purchase, running on Local network provider 4G/5G networks from A$9.20. An unlimited data eSIM Asia plan removes the worry of running out of data across multiple countries. Scan the QR code at home and arrive connected. Plans range from 1 GB to 20 GB. No contract required and a 180-day refund guarantee on unactivated eSIMs covers every order.
Does a HelloRoam Asia eSIM plan cover Japan, Thailand, Indonesia, and Vietnam on the same QR code?
HelloRoam's Asia regional plan covers multiple countries across Southeast and East Asia on a single prepaid subscription. Exact country coverage depends on the specific plan tier you select. Check the plan details on HelloRoam before purchase to confirm which Asian countries are included. Plans start from A$9.20 on Local network provider 4G/5G networks and activate by QR code at home before your Australian departure.
Is a HelloRoam Asia eSIM plan worth it for Australians doing a six-week backpacking trip through multiple countries?
For a multi-country Asia trip, a HelloRoam regional plan saves you the hassle of buying separate SIM cards in each country. One QR code, one purchase, data across multiple countries from A$9.20 on Local network provider 4G/5G networks. Your Australian Telstra, Optus, or Vodafone number stays active on your physical SIM while HelloRoam handles all your data. A 180-day refund guarantee on unactivated eSIMs covers the plan if your trip changes.
Does one eSIM work across all of Asia?
A HelloRoam Asia regional eSIM covers 48 countries on one plan. Your phone switches to local carriers automatically at each border. You do not need to swap SIMs, adjust settings, or buy a new plan when crossing from Thailand to Cambodia or from Japan to South Korea.
Does a HelloRoam Asia eSIM work in Japan?
Japan is covered by HelloRoam Asia plans and has some of the world's best mobile coverage. NTT Docomo, SoftBank, and au provide near-universal 5G in cities and strong 4G in rural areas. The Shinkansen network has in-carriage coverage. Even remote mountain towns have functional signal in most cases.
Does a HelloRoam Asia eSIM work in Bali?
Bali is covered as part of Indonesia on HelloRoam Asia plans. Telkomsel, Indosat Ooredoo, and XL Axiata cover Kuta, Seminyak, Ubud, Canggu, and Uluwatu on 4G. The Gili Islands near Lombok have more limited signal. This is one of the most popular plans for Australians heading to Indonesia.
Does a HelloRoam Asia eSIM work in Thailand?
Thailand is covered by HelloRoam Asia plans. Bangkok, Chiang Mai, Phuket, and Pattaya connect to AIS, DTAC, and True Move networks. Island ferry routes between Koh Samui, Koh Phangan, and Koh Tao have no coverage while at sea. Coverage resumes on arrival at each island.
Does a HelloRoam Asia eSIM work in South Korea?
South Korea is covered by HelloRoam Asia plans. SK Telecom, KT, and LG Uplus serve nationwide coverage. Seoul, Busan, Incheon, and Jeju Island are all very well covered. The Seoul Metro has full underground 5G coverage. South Korea has the world's highest 5G penetration rate.
Does a HelloRoam Asia eSIM work in Singapore?
Singapore is covered by HelloRoam Asia plans with some of the world's fastest and most reliable networks. Singtel, StarHub, and M1 provide near-perfect 4G and 5G coverage across the entire city-state. Changi Airport is one of the world's best-connected airports. Use Singapore as a reliable eSIM activation checkpoint.
