HelloRoam offers prepaid eSIM data plans for Asia from S$8.32. Your eSIM connects to local 4G/5G networks the moment you land, no roaming fees. Activate by QR code in under two minutes, fuss-free. Keep your Singtel, StarHub or M1 number active on dual SIM while your eSIM handles data. HelloRoam covers 185+ countries and destinations.
- networks
212+- network type
4G/5G- activation
under 2 minutes
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Travel eSIM Asia options and data plans
Affordable eSIM for Asia, starting from S$8.32. Local 4G/5G data on local partner networks in Asia, with speeds that depend on the local network. Works on any carrier-unlocked, eSIM-compatible phone. The cheapest eSIM for Asia from HelloRoam starts at S$8.32 on Local network provider 4G/5G networks per country. A HelloRoam travel sim Asia plan activates via QR code before you fly from Changi. Plans cover each destination from S$8.32 on local partner networks, so data is ready the moment you land. HelloRoam backs every order with a 180-day refund guarantee on unactivated eSIMs.
Asia eSIM with 4G/5G coverage
HelloRoam Asia eSIM covers Japan, South Korea, Thailand, Malaysia, Indonesia, Vietnam, and more on one plan. Singaporean travellers on short-haul and long-haul Asia trips stay connected without SIM swapping.
- Plans start at S$8.32 with 4G/5G speeds
- Coverage from local networks
- Instant activation in under 2 minutes
- 180-day refund on unactivated eSIMs
- Asia coverage across major cities
- Network
- 4G/5G
- Plans From
- S$8.32
- Activation
- Under 2 min
- Refund
- 180 days if unactivated
How to Set Up an eSIM in Asia
Follow these steps to set up your eSIM on iPhone or Android handphone. Works for any eSIM for international travel from Singapore. No replacement SIM, no store visit.
Set up an eSIM on your iPhone with the HelloRoam app
Set up an eSIM on your Android handphone 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 a travel SIM card or Singtel, StarHub and M1 roaming
Comparing an eSIM vs a travel SIM card for Asia? The eSIM skips the airport SIM shop, and you do not need a roaming add-on from Singtel, StarHub or M1. HelloRoam sells a prepaid eSIM for Asia from S$8.32, with a 180-day refund on unactivated eSIMs.
HelloRoam eSIM versus an Asia SIM card: which suits Singapore multi-country travellers?
A data sim card Asia from airport shops typically covers only one country, forcing a new purchase at every border. HelloRoam eSIM plans cover each Asia destination from S$8.32 on local partner 4G/5G networks, activated via QR before your first Changi flight. No physical swap and no per-border queue.
Unlike an Asia data SIM bought country by country, an Asia data eSIM plan from HelloRoam gives you local partner network access across the region from S$8.32. Plans activate via QR in under two minutes before your Changi departure. Each destination runs on Local network provider 4G/5G networks, and speeds depend on the local network.
An unlimited data eSIM Asia plan from HelloRoam is the most flexible option for Singapore travellers covering Japan, Thailand, and Korea in one trip. Activate your plan by QR at home, cross each border without buying a new card, and stay on local 4G/5G speeds throughout. Plans start from S$8.32 with a 180-day refund guarantee on unactivated eSIMs.
An unlimited eSIM Asia option from HelloRoam suits travellers who want consistent speeds from Tokyo to Bangkok without managing separate data caps per country. Activate each plan by QR before your Changi departure. Plans start from S$8.32 with a 180-day refund guarantee on unactivated eSIMs.
Why Singaporean Travellers Choose an e SIM for Asia
24/7 live chat support
Need help at 2 am in Tokyo or midnight in Seoul? HelloRoam support is available 24/7. Message us by live chat, WhatsApp or email at help@helloroam.com. Mobile data problems do not wait for business hours, and neither do we.
Best eSIM for Asia: skip Singtel roaming charges
Get data at 4G/5G speeds the moment you land in Asia. Skip roaming fees from Singtel, StarHub and M1. HelloRoam connects you to local carrier networks in minutes, whether you are travelling or working. Your connection starts before you clear customs.
Keep your Singtel, StarHub, or M1 number
Keep your Singtel, StarHub, or M1 number active for calls and texts. HelloRoam handles your data through a second eSIM line on any dual SIM compatible handphone. Family and colleagues reach you on the same Singapore number while your travel data runs on a separate prepaid eSIM plan.
212+ carrier networks including Asia
HelloRoam connects to 212+ carrier networks across 185+ countries. Fixed data plans are available in every destination, and unlimited plans in most. Your handphone joins a partner 4G/5G network automatically, with no manual carrier selection needed. Speeds depend on the local network, whether you are in a major city, at a highway rest stop or in a rural area.
Data alerts before you run out
HelloRoam emails you as your data runs low on a fixed plan, so you can top up or buy a new plan in time. If your plan supports top-ups, add data from the app before it expires, without reinstalling your eSIM or visiting a store. Adding a fresh prepaid data package takes under a minute from your account dashboard.
Local 4G/5G speeds
Your Asia eSIM connects to local 4G/5G networks. Your phone joins an available HelloRoam partner network for navigation, streaming and video calls. Speeds depend on the local network and your location, and there is no queue for a SIM card at the airport.
Regional and global eSIM plans
Travelling to multiple destinations? HelloRoam regional eSIM plans cover many countries across Asia, Europe, the Americas and more in one purchase. Short holiday or long-term stay: choose fixed data or unlimited data plans. One account, no SIM swaps. A single regional plan replaces the hassle of sourcing a new local SIM card at every border crossing.
Hotspot and data sharing at no extra cost in Asia
Share your Asia eSIM data with a laptop or tablet using your handphone's built-in hotspot. No extra fees, no setup required. Works on all eSIM compatible devices. This is particularly useful for business travellers who need a consistent mobile broadband connection for their work laptop while abroad.
Asia eSIM Prices in 2026
Compare HelloRoam eSIM plans for Asia. Plans start from S$8.32 with local 4G/5G access. No Singtel or StarHub roaming surcharges.
| Number of days | Price (AUD) |
|---|---|
| 1 day | S$13.41 |
| 3 days | S$38.22 |
| 7 days | S$82.62 |
| 15 days | S$160.94 |
| 22 days | S$218.34 |
| 30 days | S$273.61 |
HelloRoam vs Other eSIM Providers for Asia
See how HelloRoam compares with Airalo, Holafly, Nomad, Saily and Ubigi for Asia. The table covers a 180-day refund on unactivated eSIMs, data overage charges and instant QR code delivery.
| Feature comparison | HelloRoam | Airalo | Holafly | Nomad | Saily | Ubigi |
|---|---|---|---|---|---|---|
| 180-day refund (unactivated eSIMs) |  Feature available |  Feature not available |  Feature available | Feature not available | Feature not available | Feature not available |
| No data overage charges | Feature available | Feature available | Feature available | Feature available | Feature available | Feature available |
| Instant QR code delivery | Feature available | Feature available | Feature available | Feature available | Feature available | Feature available |
e SIM Explained: Setting Up eSIM for Asia
An eSIM card is a digital SIM built directly into your handphone. There is no physical chip and no SIM tray to deal with. Scan a QR code to activate your e SIM in under 2 minutes on any eSIM compatible iPhone or Android. An eSIM for Asia works as a prepaid data plan with no airport SIM counter, no replacement SIM card, and no carrier contract. Follow the step-by-step setup guide to get connected before your flight from Changi. guide
eSIM Coverage Guide for Singaporean Travellers Across Asia
Asia's mobile connectivity ranges from world-class 5G in Japan, South Korea, and Singapore itself to solid urban 4G across Southeast Asia. As a Singaporean traveller, you already experience premium connectivity at home. Here is what to expect at your Asia destinations.
Japan consistently ranks among the world's top two fastest mobile networks. NTT Docomo, SoftBank, and au operate 5G across all major cities. Coverage is near-universal including on the Shinkansen, all Tokyo subway lines, and even in rural mountain areas.
South Korea's SK Telecom, KT, and LG Uplus have some of the world's densest 5G deployments. Seoul's entire metro system has 5G coverage. Busan, Incheon, and Jeju Island are all well-served.
Thailand is Singapore's most popular short-haul destination. Bangkok, Phuket, Chiang Mai, Koh Samui, and all main resort areas have strong 4G from AIS, DTAC, and True Move.
Indonesia's Bali has solid 4G in Seminyak, Ubud, Canggu, and Kuta from Telkomsel. Jakarta is well-covered. Lombok's main town and Gili Islands have basic coverage. Remote island areas are limited.
Vietnam's Ho Chi Minh City, Hanoi, Da Nang, and Hoi An have strong 4G.
- Japan and South Korea rank among the world's fastest mobile networks
- Thailand's main tourist areas have strong 4G from multiple carriers
- Bali and Jakarta have solid coverage from Telkomsel
- One plan covers the popular Singapore-Bangkok-Bali circuit
- Remote islands, jungle, and mountain areas have limited signal
- Download offline maps before remote excursions
- GSMA Mobile Economy Asia Pacific 2025;
- Ookla Global Speedtest Index 2025
eSIM Travel Tips for Asia
Japan and South Korea Are Premium Networks
Japan and South Korea deliver some of the world's best mobile connectivity. Tokyo's entire subway, including underground stations, has coverage on all lines. Seoul's 5G is among the most dense globally. As a Singaporean accustomed to quality connectivity, you will feel at home in both countries.
Thailand Is Your Most Visited Short-Haul Destination
Bangkok, Phuket, Chiang Mai, and Koh Samui all have reliable 4G. AIS, DTAC, and True Move compete for coverage in all tourist areas. Beach resort areas on Koh Samui and Koh Phangan are generally well-covered in town. Download offline maps for remote beach coves.
Bali Is Well-Connected in Tourist Areas
Seminyak, Ubud, Canggu, Kuta, and Nusa Dua all have solid 4G from Telkomsel. The east Bali coast and remote rice terrace areas can be patchier. WhatsApp and all communication apps work normally throughout Bali and Indonesia.
Vietnam's Cities Are Increasingly Well-Connected
Ho Chi Minh City and Hanoi have strong 4G from Viettel, Mobifone, and Vinaphone. Da Nang and Hoi An are well-served. Ha Long Bay boat tours have basic signal in main bay areas. Remote Sapa has coverage in the main town.
Install Before You Leave Changi
Install your HelloRoam Asia eSIM before you depart from Changi Airport. The QR code setup takes a few minutes over Wi-Fi. Your eSIM is then ready to activate automatically in any covered country as soon as you land. No queues at destination airports.
Network Coverage Across Asia
Japan: NTT Docomo, SoftBank, and au operate nationwide 5G and 4G LTE with near-universal geographic coverage. Japan's indoor coverage quality is exceptional.
South Korea: SK Telecom, KT, and LG Uplus have dense 5G in all urban areas. Seoul's subway has 5G throughout.
Thailand: AIS, DTAC, and True Move compete across the country. AIS has the widest rural coverage. Bangkok has 5G rollout underway.
Indonesia: Telkomsel is the dominant operator with widest coverage. Indosat and XL Axiata compete in urban areas. Bali and Java are well-covered.
Vietnam: Viettel has excellent rural reach by Southeast Asian standards. Mobifone and Vinaphone are the other major carriers. Ho Chi Minh City and Hanoi have strong 4G.
Philippines: PLDT and Globe Telecom dominate. Manila, Cebu, and main cities have 4G. DITO Telecommunity is growing rapidly.
- Various Asia-Pacific carriers
Regional eSIM vs Local SIMs vs Singapore Carrier Roaming for Asia Travel
For multi-country Asia trips from Singapore, a regional eSIM offers better value than buying SIMs at each destination or using Singtel, StarHub, M1, or Simba international roaming day passes.
| Category | HelloRoam Regional Asia eSIM Recommended | Individual country SIMs | Roaming with your carrier |
|---|---|---|---|
| Typical cost | From SGD 8.32 total | — | — |
| Details | One plan covers Japan, South Korea, Thailand, Bali, and more. Buy before departing Changi. No SIM hunting at Suvarnabhumi or Ngurah Rai. Better value than Singapore carrier daily roaming passes for Asia destinations. | Separate SIM required for each country. Airport SIM counters have queues. Registration requirements vary. Managing multiple SIMs adds hassle on a multi-country Asia circuit. | Singtel, StarHub, M1, and Simba day passes for Asian destinations carry per-day charges. A two-week Japan plus Thailand trip can accumulate significant daily roaming costs. A regional eSIM plan is typically more cost-effective. |
Prices approximate as of . Actual savings vary.
Best Times for Singaporean Travellers to Visit Asia
Japan's most popular seasons are spring (March to May) for cherry blossoms and autumn (October to November) for foliage. Both align with Singapore's school holiday periods. South Korea follows similar seasonal patterns.
Thailand is best November through April during the dry season. Bali's dry season is April through October. Vietnam's north is best October through April.
Singapore school holidays in June and November-December are peak outbound travel periods for Asia destinations.
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
Trusted by Singaporean Travellers
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 a data sim card Asia cost for a two-week multi-country trip from Singapore?
An eSIM card Asia plan from HelloRoam starts at S$8.32 on Local network provider 4G/5G. HelloRoam activates each plan before you travel from Changi and displays all pricing per destination at checkout. No physical SIM card needed and no contract.
Which eSIM Asia option suits Singaporeans travelling across Japan, Thailand, and South Korea?
The cheapest eSIM for Asia from HelloRoam covers your full trip at local network speeds. Set up takes two minutes per country before your first Changi flight so you cross every border without buying a new card. No contract on any purchase.
Which eSIM is best for Singaporeans travelling to Asia?
For trips to Asia, HelloRoam is a simple eSIM choice. Plans start from S$8.32 in SGD with access to local 4G/5G networks across 212+ carrier networks. Activate via QR code in under 2 minutes before departing from Changi Airport. Your Singtel, StarHub, or M1 number stays active through dual SIM while HelloRoam handles data abroad. You get a refund on unactivated eSIMs within 180 days and 24/7 live chat support.
How much does a Asia eSIM cost compared to Singtel and StarHub roaming?
A Asia eSIM from HelloRoam costs from S$8.32 for the full plan. On most trips, that costs less than a roaming pass from Singtel or StarHub. HelloRoam connects to local networks in Asia for one prepaid HelloRoam price, with no roaming fees from your home carrier and no carrier contract. All plans include local 4G/5G access with no overage charges.
Which local mobile networks does an eSIM use in Asia for Singapore travellers?
An eSIM for Asia from HelloRoam connects to local 4G/5G partner networks. Your handphone joins a partner network when you land. Coverage and speeds depend on the local network and your signal, just as they do with Singtel, StarHub, or M1 at home.
How do I set up a HelloRoam eSIM before departing Changi Airport?
Buy your Asia eSIM before you leave Singapore in three steps. First, select your plan at helloroam.com and complete checkout in SGD. Second, open your handphone Settings, tap Add eSIM or Add Mobile Plan, and scan the QR code from your email. Third, your eSIM installs in under 2 minutes. Set it up the night before your flight from Changi and land connected.
Does my iPhone or Android handphone support a Asia eSIM?
iPhone XS and all newer models support HelloRoam eSIM in Asia. iPhone 13 and later models support dual eSIM, so your Singtel or StarHub line stays active for calls while HelloRoam handles travel data. For Android, most Samsung Galaxy S20 and newer models, Google Pixel 4 and newer, and many recent Android handphones support eSIM. Check your handphone Settings for an Add eSIM option to confirm compatibility.
Does a HelloRoam Asia eSIM cover Japan, South Korea, and Thailand together?
A HelloRoam Asia regional eSIM covers Japan, South Korea, Thailand, and many other Asian countries on one plan. Singaporean travellers doing Japan plus South Korea or Thailand plus Bali combinations stay connected on the same plan at each destination. The HelloRoam Asia eSIM connects to local networks across major tourist and urban areas, with 5G where available. Plans start from S$8.32. Activate by scanning a QR code before departure. No physical SIM card or airport queue needed.
Is there eSIM coverage in Tokyo and Osaka?
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 coverage including underground stations. Japan's Shinkansen has in-train coverage throughout. The HelloRoam Asia eSIM connects to local networks across major tourist and urban areas, with 5G where available. Plans start from S$8.32. Activate by scanning a QR code before departure. No physical SIM card or airport queue needed.
Does the Asia eSIM work in Seoul?
Seoul has excellent 5G coverage from SK Telecom, KT, and LG Uplus. Seoul's entire metropolitan subway system has 5G coverage. Jeju Island has strong 4G. South Korea consistently ranks among the world's fastest mobile networks. The HelloRoam Asia eSIM connects to local networks across major tourist and urban areas, with 5G where available. Plans start from S$8.32. Activate by scanning a QR code before departure. No physical SIM card or airport queue needed.
