HelloRoam offers eSIM data plans for Southeast Asia from S$5.13 a day. Your e SIM 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 e-sim handles data across 185+ countries.
- networks
212+- 5G support
4G LTE with 5G in capitals- activation
under 2 minutes
Updated
Unlimited data eSIM Southeast Asia plans covering Thailand, Vietnam, Indonesia and Malaysia
Affordable eSIM for Southeast Asia, starting from S$5.13. Local 4G LTE and 5G data on trusted carrier networks in Southeast Asia. Works on all eSIM compatible handphones. Bangkok, Bali, Ho Chi Minh City, and Kuala Lumpur are all just a few hours from Changi, and managing separate local SIM cards for each Southeast Asian destination adds friction to every border crossing. HelloRoam gives Singapore travellers per-country plans that activate before you fly, with data ready from every arrival gate across 10+ ASEAN destinations from S$5.13. HelloRoam backs every order with a 180-day refund guarantee on unactivated eSIMs.
Southeast Asia eSIM with fast 4G LTE with 5G in capitals coverage
HelloRoam Southeast Asia eSIM covers Thailand, Malaysia, Indonesia, Vietnam, Philippines, Cambodia, and more on one plan. Singaporean travellers on short-haul regional trips stay connected without buying SIMs at each destination.
- Plans start at S$5.13 with 4G LTE with 5G in capitals speeds
- Coverage from local networks
- Instant activation in under 2 minutes
- 180-day money-back guarantee
- Southeast Asia coverage across major cities
- Network
- 4G LTE with 5G in capitals
- Plans From
- S$5.13
- Activation
- Under 2 min
- Guarantee
- 180 days
How to Set Up an eSIM in Southeast 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 Southeast Asia eSIM vs Singtel, StarHub and M1
When comparing eSIM vs a travel SIM card for Southeast Asia, HelloRoam wins on price. It beats Singtel DataRoam, StarHub RoamEasy, and M1 international roaming add-ons. The cheapest eSIM plan starts from S$5.13, with no activation fee and a refund on unactivated eSIMs within 180 days.
| Feature comparison | HelloRoam | Local provider | 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 |
| Automatic data alerts at 80% usage | 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 Southeast Asia carrier networks | Feature available | Feature not available | Feature not available |
Why Singaporean Travellers Choose an e SIM for Southeast Asia
24/7 live chat support
Need assistance at 2 am before a flight from Changi? HelloRoam support is available 24/7. Message us and a real person responds in under 2 minutes. No bots, no hold queue. Whether you need help with eSIM installation, plan changes, or troubleshooting a connection drop, the support team handles it in real time.
Best eSIM for Southeast Asia: skip Singtel roaming charges
HelloRoam connects to local 4G/5G networks in Southeast Asia from the moment you land, at a fraction of what Singtel, StarHub, or M1 charge for international roaming. Plans start from S$5.13 with no lock-in contract and no activation fees. You pay once and use data freely without surprise overage charges.
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 Southeast Asia
HelloRoam connects to 212+ carrier networks across 185+ countries. Fixed data and unlimited data plans available. Your handphone switches to the strongest available 4G/5G or 5G signal automatically, where offered by the local network. That means consistent speeds whether you are in a major city, a highway rest stop, or a rural area.
Data alerts before you run out
HelloRoam alerts you at 80% data usage so you are never caught mid-trip without data. Top up instantly from the app without reinstalling your eSIM or visiting a store. Additional data activates in under a minute, keeping your connection live through navigation, video calls, and streaming.
Local 4G/5G speeds
Your Southeast Asia eSIM connects to trusted local 4G/5G networks. HelloRoam picks the strongest available signal for navigation, streaming, and video calls. You get local network speeds comparable to a prepaid SIM card purchased in-country, without the airport queue.
Regional and global eSIM plans
Travelling to multiple destinations? HelloRoam regional eSIM plans cover Southeast Asia, Europe, the Americas, and 185+ destinations 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 Southeast Asia
Share your Southeast 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.
Southeast Asia eSIM Prices in 2026
Compare HelloRoam eSIM plans for Southeast Asia. Plans start from S$5.13 with local 4G/5G access. No Singtel or StarHub roaming surcharges.
| Number of days | Price (AUD) |
|---|---|
| 1 day | S$4.62 |
| 3 days | S$13.18 |
| 7 days | S$28.49 |
| 15 days | S$55.50 |
| 22 days | S$75.30 |
| 30 days | S$94.35 |
HelloRoam vs Other eSIM Providers for Southeast Asia
See how HelloRoam compares to Airalo, Holafly, and other eSIM providers for Southeast Asia travel. HelloRoam offers a refund on unactivated eSIMs within 180 days, 24/7 live chat support, and plans from S$5.13.
| 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 |
| Automatic data alerts at 80% usage | 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 Southeast 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 |
e SIM Explained: Setting Up eSIM for Southeast 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 Southeast 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 in Southeast Asia
Southeast Asia's connectivity ranges from Thailand and Malaysia's strong 4G to Singapore's own world-class 5G. As a Singaporean traveller, you typically experience the region's best connectivity at home. Here is what to expect at popular regional destinations.
Thailand is Singapore's most popular short-haul international destination. Bangkok, Phuket, Chiang Mai, Koh Samui, and all main resort areas have strong 4G from AIS, DTAC, and True Move.
Malaysia is Singapore's nearest neighbour with a direct land crossing. Kuala Lumpur, Penang, Johor Bahru, and Langkawi are all well-covered by Maxis, Celcom, and Digi.
Indonesia's Bali has solid 4G in Seminyak, Ubud, Canggu, Kuta, and Nusa Dua from Telkomsel. Jakarta is well-covered. Lombok has coverage in main towns. Remote island areas and inland Kalimantan are limited.
Vietnam's Ho Chi Minh City, Hanoi, Da Nang, and Hoi An have strong 4G from Viettel, Mobifone, and Vinaphone. Ha Long Bay boat areas have basic signal.
Cambodia's Phnom Penh and Siem Reap are well-served. The Philippines' Manila and Cebu have 4G from PLDT and Globe Telecom.
Note: Singapore itself is not typically included as a destination in Southeast Asia regional eSIM plans since you would be purchasing from Singapore.
- Thailand's resort and city areas have strong 4G from multiple carriers
- Malaysia is well-covered including the Singapore-KL corridor
- Bali's tourist areas have solid 4G from Telkomsel
- Vietnam's major cities have strong 4G
- Remote beaches, jungle, and mountain areas have limited signal
- Download offline maps before any remote excursions from Changi
- GSMA Mobile Economy Asia Pacific 2025;
- Ookla Southeast Asia Speedtest 2025
eSIM Travel Tips for Southeast Asia
Install Before You Leave Changi
Install your HelloRoam Southeast Asia eSIM at home or at Changi over Wi-Fi before your departure. Short-haul flights to Bangkok, Bali, Kuala Lumpur, and Ho Chi Minh City depart frequently from Changi. You land at your destination and your phone connects to the local carrier immediately.
Bangkok Is Reliably Well-Connected
Bangkok has strong 4G throughout the city from AIS, DTAC, and True Move. The BTS Skytrain and MRT have coverage throughout. Suvarnabhumi and Don Mueang airports are both well-connected. Bangkok is typically the strongest mobile coverage environment after Singapore in the region.
Bali's Tourist Areas Have Solid Coverage
Seminyak, Ubud, Canggu, Kuta, and Nusa Dua all have reliable 4G from Telkomsel. Popular day trip locations like the Tegalalang Rice Terraces are covered in main areas. More remote eastern Bali and inland areas can be patchier.
Kuala Lumpur Is Easy From Singapore
KL is a popular short trip from Singapore, reachable by flight in 50 minutes or by bus in 4 to 5 hours. KLCC, Bukit Bintang, and KL Sentral are all well-covered by Maxis, Celcom, and Digi. Your HelloRoam Southeast Asia eSIM works on both sides of the causeway.
WhatsApp Works Normally Throughout Southeast Asia
WhatsApp calling, messaging, and video are fully functional across all Southeast Asian countries on HelloRoam eSIM data. No VoIP restrictions apply in Thailand, Malaysia, Indonesia, Vietnam, or the Philippines. Stay in touch with family and colleagues in Singapore without any restrictions.
Network Coverage Across Southeast Asia
Thailand: AIS, DTAC, and True Move compete across the country. AIS has the widest rural reach. Bangkok has growing 5G.
Malaysia: Maxis, Celcom, Digi, and U Mobile cover the peninsula. East Malaysia (Sabah, Sarawak) has improving urban coverage.
Indonesia: Telkomsel leads with widest coverage. Indosat and XL Axiata compete in urban areas. Bali and Java are well-served. Outer islands vary.
Vietnam: Viettel has excellent rural reach by regional standards. Mobifone and Vinaphone are the other main carriers.
Philippines: PLDT and Globe Telecom dominate. DITO is growing. Manila and Cebu have solid 4G.
Cambodia: Smart and Metfone cover Phnom Penh and Siem Reap well. Rural and border areas are more limited.
Myanmar: MPT and Ooredoo Myanmar have basic urban 4G. Coverage is improving but inconsistent.
- AIS (Thailand)
- Viettel (Vietnam)
- Singtel (Singapore)
- Telkomsel (Indonesia)
- Globe (Philippines)
- Celcom (Malaysia)
Regional eSIM vs Local SIMs vs Singapore Carrier Roaming for Southeast Asia
For multi-country Southeast Asia trips, a regional eSIM offers better value than buying SIMs at each destination. Singapore carrier day passes for Southeast Asian countries carry per-day charges that accumulate on longer trips.
| Category | HelloRoam Regional Southeast Asia eSIM Recommended | Individual country SIMs | Singapore carrier international roaming |
|---|---|---|---|
| Typical cost | — | — | — |
| Details | One plan covers Thailand, Malaysia, Bali, Vietnam, and more. Buy before departing Changi. No SIM queues at Suvarnabhumi or Ngurah Rai. Better value than Singapore carrier day passes for multi-country trips. | Separate SIM for each country. Airport SIM counters have queues. Managing multiple SIMs is inconvenient on a multi-country circuit. | Singtel, StarHub, M1, and Simba day passes for Southeast Asian destinations carry per-day charges. A two-week Thailand plus Bali trip at day pass rates adds up. A regional eSIM is typically more cost-effective. |
Prices approximate as of . Actual savings vary.
Best Times for Singaporean Travellers to Visit Southeast Asia
Thailand is best November through April in 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 drive peak bookings to Thailand, Bali, and the region. Advanced booking is recommended during these periods.
Explore Countries in Southeast Asia
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.
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.
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.
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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 Southeast Asia
How much does an eSIM Southeast Asia plan cost for a Thailand, Vietnam, and Indonesia trip?
A HelloRoam eSIM in Southeast Asia plan starts at S$5.13 per country, depending on data volume and duration. Activate each country before you fly from Changi. No physical SIM card needed and no contract.
Which Southeast Asia e SIM card suits Singaporean travellers island-hopping across ASEAN?
eSIMs Southeast Asia plans from HelloRoam start at S$5.13 on Local network provider 4G/5G networks. Set up takes two minutes per destination before your Changi departure so data is ready from the moment you land at each airport. No contract.
Which eSIM is best for Singaporeans travelling to Southeast Asia?
For trips to Southeast Asia, HelloRoam is a simple eSIM choice. Plans start from S$5.13 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 Southeast Asia eSIM cost compared to Singtel and StarHub roaming?
A Southeast Asia eSIM from HelloRoam costs from S$5.13 for the full plan. Compare that to Singtel DataRoam daily passes and StarHub RoamEasy rates, which typically cost S$15 to S$30 per day. HelloRoam connects to local networks in Southeast Asia at local data prices, with no daily roaming surcharges and no carrier contract. All plans include local 4G/5G access with no overage charges.
Which local mobile networks does an eSIM use in Southeast Asia for Singapore travellers?
An eSIM for Southeast Asia from HelloRoam connects to local 4G/5G carrier networks. Your handphone picks the strongest available signal the moment you land. Coverage spans major cities, highways, and most rural areas. HelloRoam has direct partnerships with local networks globally, so you get data speeds comparable to a local prepaid SIM card in Southeast Asia.
How do I set up a HelloRoam eSIM before departing Changi Airport?
Buy your Southeast 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 Southeast Asia eSIM?
iPhone XS and all newer models support HelloRoam eSIM in Southeast 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, Samsung Galaxy S20 and newer, Google Pixel 3 and later, and most 2019+ Android handphones support eSIM. Check your handphone Settings for an Add eSIM option to confirm compatibility.
Does the Southeast Asia eSIM cover Thailand and Bali?
Thailand and Indonesia (including Bali) are both covered on the HelloRoam Southeast Asia regional plan. Bangkok, Phuket, Chiang Mai, Seminyak, Ubud, and all main tourist areas are connected. HelloRoam eSIM for HelloRoam Southeast Asia eSIM connects to local network with 5G coverage across major tourist and urban areas. Plans start from S$5.13. Activate by scanning a QR code before departure. No physical SIM card or airport queue needed.
Is there coverage in Vietnam?
Vietnam's Ho Chi Minh City, Hanoi, Da Nang, and Hoi An have strong 4G from Viettel, Mobifone, and Vinaphone. Ha Long Bay has basic signal. Remote Sapa has coverage in town. HelloRoam eSIM for HelloRoam Southeast Asia eSIM connects to local network with 5G coverage across major tourist and urban areas. Plans start from S$5.13. Activate by scanning a QR code before departure. No physical SIM card or airport queue needed.
Does the eSIM work in Malaysia and Kuala Lumpur?
Malaysia is covered. Kuala Lumpur, Penang, and Johor Bahru have strong 4G from Maxis, Celcom, and Digi. The KL Sentral transport hub and KLCC area are well-covered. HelloRoam eSIM for HelloRoam Southeast Asia eSIM connects to local network with 5G coverage across major tourist and urban areas. Plans start from S$5.13. Activate by scanning a QR code before departure. No physical SIM card or airport queue needed.
