HelloRoam offers eSIM data plans for Thailand, starting from A$4.95 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.
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212+- 5G support
5G- activation
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eSIM for Thailand Plans for Every Trip Length
Cheap eSIM for Thailand, starting from A$4.95. Local 4G/5G data on trusted carrier networks in Thailand. Works on all eSIM compatible phones. An e SIM Thailand plan from HelloRoam starts from A$4.95 on AIS, DTAC, TrueMove H, and 1 more 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.
Thailand eSIM with fast 5G coverage
HelloRoam offers eSIM plans for Thailand from A$4.95. Connect on AIS, TrueMove H, and dtac networks with 4G and 5G across Bangkok, Phuket, Chiang Mai, and the islands. Activate your eSIM before your flight with a QR code.
- Plans start at A$4.95 with 5G speeds
- Coverage from AIS and 3+ other operators
- Instant activation in under 2 minutes
- 180-day money-back guarantee
- Thailand coverage across major cities
- Network
- 5G
- Plans From
- A$4.95
- Activation
- Under 2 min
- Guarantee
- 180 days
How to Set Up an eSIM in Thailand
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 Thailand eSIM vs Telstra, Optus and Vodafone AU roaming
When comparing eSIM vs a travel SIM card for Thailand, 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$4.95, 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 Thailand carrier networks | Feature available | Feature not available | Feature not available |
Thailand SIM card or eSIM: which is better for Australians visiting Bangkok and Phuket?
A SIM card for Thailand from the airport counter at Suvarnabhumi means a long queue on arrival and a physical card to manage through island-hopping. A HelloRoam eSIM activates at home by QR code so you land in Bangkok already connected.
A prepaid SIM card Thailand from a local carrier requires in-store registration on arrival. HelloRoam delivers your QR code by email at purchase from A$4.95. Scan it before your flight and data is live when you land.
A data sim card Thailand from an airport kiosk often charges a premium for tourist plans. HelloRoam starts from A$4.95 on AIS, DTAC, TrueMove H, and 1 more 5G with a 180-day refund guarantee on unactivated eSIMs.
A tourist sim card Thailand needs in-person pickup or airport delivery. A HelloRoam eSIM arrives by email the moment you purchase. No wait, no queue, no physical card to lose at the beach.
To buy sim card for Thailand at Suvarnabhumi you pay inflated airport prices. HelloRoam lets you order online from Australia, receive your QR code instantly, and activate before you board.
A Thailand tourist sim from HelloRoam covers Bangkok, Phuket, Koh Samui, Chiang Mai, and beyond on AIS, DTAC, TrueMove H, and 1 more 5G from A$4.95 with no lock-in contract.
Why Aussie Travellers Pick an e-sim for Thailand
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 Thailand travel
Connect to local 4G/5G networks the moment you land in Thailand, at a fraction of what Telstra, Optus, or Vodafone AU charge for international roaming. Plans start from A$4.95 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 Thailand. 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 Thailand
Share your Thailand 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 Thailand: Prices and Plans
HelloRoam, the best eSIM Thailand. Compare plans and save versus Telstra, Optus, and Vodafone roaming.
| Number of days | Price (AUD) |
|---|---|
| 1 day | A$5.27 |
| 3 days | A$15.01 |
| 7 days | A$32.44 |
| 15 days | A$63.20 |
| 22 days | A$85.74 |
| 30 days | A$107.44 |
HelloRoam vs Other eSIM Providers for Thailand
For Thailand, 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 Thailand 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 Thailand 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 Thailand 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
Mobile coverage guide for Thailand
Thailand is one of the most popular long-haul destinations for Australians, whether it is a quick getaway to Phuket or a month-long adventure through the north.
AIS and True Corporation, which runs the TrueMove H and dtac brands, cover all major cities, tourist islands, and highway corridors on 4G and 5G.
A HelloRoam eSIM means you land at Suvarnabhumi or Phuket International already on local data speeds, without touching the carrier roaming section of your Aussie phone bill.
- HelloRoam connects to AIS 5G, DTAC 5G, TrueMove H 5G and 1 more in Thailand
- 4G and 5G across Bangkok, Phuket, Chiang Mai, Koh Samui, and Koh Tao
- Connect on AIS, TrueMove H, and dtac networks
- QR code activation at home before your flight departs
eSIM Travel Tips for Thailand
Set up before you board at Sydney, Melbourne, or Brisbane
Flights from Australia to Bangkok or Phuket are 9 to 10 hours. Set up your HelloRoam eSIM before you leave home. Land at Suvarnabhumi or Phuket International fully connected and save your airport energy for finding your taxi or grabbing a coffee.
Coverage on the Thai islands
Koh Samui, Koh Phangan, and Koh Tao all have 4G coverage from AIS and dtac in the main tourist areas. Koh Lanta and Koh Phi Phi have good signal around the beaches and town centres. Remote west-coast beaches and national park interiors can be patchy. Download offline maps before island hopping.
Night markets and street food navigation
Bangkok's Chatuchak Weekend Market, Chiang Mai's Saturday and Sunday walking streets, and the floating markets near Amphawa are all easier to navigate with live maps and Google Translate. Your HelloRoam eSIM keeps you online without paying Telstra roaming rates every time you need to find the next stall.
Jet lag and time zones
Thailand is 3 hours behind Australian Eastern Standard Time and 4 hours behind during Australian daylight saving. The time difference is manageable. Most Australians adjust within a day or two, especially travelling westward.
Travel insurance and Smart Traveller
Thailand is generally safe but medical costs can be significant for uninsured travellers. Comprehensive travel insurance is a must. Check smartraveller.gov.au before departure and register your trip if staying more than a few days.
Mobile networks in Thailand: the full picture
Thailand has two major network groups: AIS and True Corporation, which has run both the TrueMove H and dtac brands since their 2023 merger. Both groups offer broad 4G, with 5G live in Bangkok and major tourist centres since 2020. Your HelloRoam eSIM connects on AIS, TrueMove H, and dtac networks and picks the best signal available automatically.
- AIS
- 5G
- DTAC
- 5G
- TrueMove H
- 5G
- True Move
- 4G
HelloRoam eSIM vs Telstra and Optus roaming in Thailand
A straight comparison of data costs for Australians visiting Thailand.
| Category | HelloRoam eSIM Recommended | Thai SIM card | Telstra, Optus, or Vodafone AU roaming |
|---|---|---|---|
| Typical cost | From A$5.00 total | A$11.36–A$39.75 total | A$14.20–A$28.39/day |
| Details | Plans start at A$4.95. Buy online, scan a QR code at home, and land at Suvarnabhumi or Phuket International already connected on local 4G or 5G speeds. | AIS, TrueMove H, and dtac tourist SIMs are available at the airport but require queuing and SIM swapping. Your home SIM needs to be stored safely and swapped back when you return. | Telstra International Day Pass is AU$10 per day in Thailand. A two-week Thai holiday adds AU$140 in data roaming alone. Optus and Vodafone AU have similar daily pass pricing. |
Prices approximate as of . Actual savings vary.
Best time to visit Thailand from Australia
Thailand's cool and dry season from November to February is the most comfortable time to visit, with lower humidity and clear skies across the country. March to May is hot and dry before the monsoon. The wet season from June to October brings daily rain and lower prices, though the Andaman islands like Phuket and Koh Phi Phi can see rough seas from May to October. The Gulf coast islands like Koh Samui have a different wet season peaking in November.
Reviewed by HelloRoam Editorial Team
Reviewed by HelloRoam Editorial Team
Top Destinations in Thailand
Bangkok
HelloRoam connects travelers in Bangkok with reliable data across Thailand. No SIM card swap needed.
AIS and TrueMove H offer 5G across Bangkok. Both Suvarnabhumi and Don Mueang airports have excellent indoor coverage.
Phuket
Use HelloRoam in Phuket for instant connectivity. Our Thailand plans work on any eSIM phone.
AIS and TrueMove H 5G cover Phuket well. Phuket Airport has strong coverage in all terminals.
Bang Kapi
Bang Kapi is a Bangkok district known for The Mall Group headquarters, Ramkhamhaeng University, and the vibrant student and local food culture. HelloRoam keeps you online.
AIS and True Move H cover Bang Kapi with 5G. The Ramkhamhaeng Road MRT extension provides full coverage along the route.
Chiang Mai
Chiang Mai is Thailand's northern cultural capital, surrounded by mountains and ancient temples. HelloRoam keeps you connected throughout the city and surrounds.
AIS and TrueMove H run 4G and 5G in Chiang Mai. Activate before landing at Chiang Mai International Airport.
Chon Buri
HelloRoam delivers mobile data in Chon Buri, keeping you online throughout Thailand.
Chon Buri, including Pattaya, has AIS 5G. Laem Chabang port and the coastal strip get strong signal.
Hua Hin
Hua Hin is Thailand's original royal beach resort, a relaxed coastal town with seafood night markets and the famous Night Safari. HelloRoam keeps you connected.
AIS and TrueMove H cover Hua Hin with 4G. The beach road and night market areas have strong signal for navigating and
Mueang Nonthaburi
Arrive in Mueang Nonthaburi ready to connect. HelloRoam covers all of Thailand with fast data.
Nonthaburi near Bangkok has AIS and TrueMove H 5G. The MRT Purple Line maintains in-station connectivity.
Pattaya
Pattaya is Thailand's famous beach resort city on the Gulf coast. HelloRoam keeps you connected from Walking Street to the beach.
AIS 5G covers most of Pattaya. Activate your HelloRoam eSIM before arriving from Bangkok to stay connected on arrival.
Phra Nakhon
Explore Phra Nakhon without losing connection. HelloRoam offers fast data across Thailand.
Phra Nakhon in central Bangkok has dense AIS 5G. The Grand Palace and Khao San Road are fully covered.
Samut Prakan
Browse and stream in Samut Prakan with HelloRoam mobile data plans for Thailand.
Samut Prakan borders Bangkok and shares its dense 5G coverage. Suvarnabhumi Airport sits within this province.
Udon Thani
Udon Thani is northeast Thailand's main city, a busy transport hub and base for exploring the ancient prehistoric rock art at Phu Phrabat. HelloRoam keeps you online.
AIS and DTAC cover Udon Thani with 4G. Activate before landing at Udon Thani Airport for coverage throughout the Isan
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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
Updated
FAQs About eSIM in Thailand
How much does an eSIM for Thailand cost for Australians visiting Bangkok and Phuket?
A travel sim Thailand plan from HelloRoam starts from A$4.95 on AIS, DTAC, TrueMove H, and 1 more 5G networks. HelloRoam sends your QR code by email at purchase. Scan it at home and your data is live when you land. No physical SIM card required and no roaming charges.
What is the best e SIM Thailand for an Australian beach and city holiday?
An e-sim Thailand plan on HelloRoam runs on AIS, DTAC, TrueMove H, and 1 more 5G networks from A$4.95. Scan the QR code at home and arrive connected. Plans cover multiple data sizes from 1 GB to 20 GB. No contract required and a 180-day refund guarantee on unactivated eSIMs covers every order.
Does a HelloRoam Thailand eSIM cover Koh Samui, Koh Tao, and Koh Phangan for island-hopping Australians?
HelloRoam's Thailand plan runs on AIS, DTAC, TrueMove H, and 1 more 5G networks covering Bangkok, Phuket, Koh Samui, Koh Tao, Koh Phangan, Chiang Mai, and beyond. Island coverage is strong on the main Gulf of Thailand and Andaman islands. Plans start from A$4.95, activate by QR code at home before your Australian departure, and cover your whole Thai island-hopping itinerary on a single plan.
Can I use my HelloRoam Thailand eSIM for hotspot tethering to share data with a travel mate?
Yes, HelloRoam Thailand plans support mobile hotspot tethering so your travel mate can share your data connection via WiFi. Plans run on AIS, DTAC, TrueMove H, and 1 more 5G from A$4.95 and cover everywhere from Suvarnabhumi and Don Mueang airports to beachside bungalows in Koh Samui. Scan the QR at home before your flight from Sydney, Melbourne, or Brisbane and both of you are online from landing.
What is the best eSIM for Thailand?
HelloRoam tops the eSIM shortlist for Thailand. Plans connect on AIS, TrueMove H, and dtac from A$4.95 with 4G and 5G data. Set up the QR code before you board in Australia and arrive in Bangkok or Phuket already online.
Does my Australian mobile work in Thailand?
Yes, your Australian mobile works in Thailand on international roaming, but Telstra's International Day Pass costs AU$10 a day. A HelloRoam eSIM costs far less and connects you on the same local networks at local speeds.
Which networks does HelloRoam use in Thailand?
HelloRoam uses AIS, TrueMove H, and dtac in Thailand. TrueMove H and dtac have both been run by True Corporation since their 2023 merger, so you are covered by both of Thailand's big network groups. Your phone connects to the strongest signal automatically, whether that is Bangkok's Sukhumvit or a beach on Koh Tao.
How do I activate a HelloRoam eSIM for Thailand?
Buy your plan on helloroam.com, scan the QR code in your phone settings under mobile data or SIM card, and turn mobile data on when you land. Takes about five minutes and is best done before you leave Australia.
How much does an eSIM for Thailand cost?
HelloRoam plans for Thailand start at A$4.95. Larger data plans are available for longer trips or heavy users. Any option beats paying AU$10 a day for a Telstra roaming pass to use the same networks.
Is there mobile coverage on Thai islands?
Popular islands including Koh Samui, Koh Phangan, Koh Tao, and Koh Lipe all have 4G coverage in tourist areas. Very remote beaches and national park interiors can have limited signal. Download offline maps and accommodation details before island hopping.
Does HelloRoam work in Chiang Mai?
Yes, Chiang Mai has strong 4G and 5G coverage from AIS, TrueMove H, and dtac. HelloRoam connects reliably across the old city, the night markets, and the surrounding Doi Suthep area. Rural hill tribe villages further north can have limited signal.
How much data do I need for two weeks in Thailand?
Two weeks in Thailand using maps, messaging apps, social media, and booking restaurants typically needs 4 to 6 GB. Heavy video streaming or daily video calls back to Australia will push that higher. A 5 GB or 10 GB plan suits most two-week trips.
Can I use a hotspot with my eSIM in Thailand?
Yes, HelloRoam eSIM plans for Thailand support hotspot tethering. Share your 4G or 5G data with a travel companion's phone or your laptop at a Chiang Mai co-working space or beach bar.
Does 5G work in Thailand with HelloRoam?
Yes, 5G is live in Bangkok and major cities through AIS and True Corporation, the group behind TrueMove H and dtac. Most tourist areas outside the big cities use 4G LTE. Your HelloRoam eSIM switches between 5G and 4G automatically based on what is available.
Does HelloRoam work in Phuket?
Yes, Phuket has excellent 4G coverage across Patong, Kata, Karon, and the Phuket Town area. HelloRoam connects reliably across the island. Remote beach areas on the east coast and national park zones can be patchier.
What to Know Before You Buy
eSIM requires an unlocked, eSIM-compatible device. Check your phone settings before buying.
Most travel eSIM plans provide data only. Your existing phone number stays active for calls and texts on your primary SIM.
Coverage quality varies by location within Thailand. Urban areas typically have strong 4G/5G coverage, while rural or remote areas may have limited connectivity.
Install your eSIM before you leave. Activation requires an internet connection, which may not be available at your destination airport.
Transparency Notice
- Service Provider Name (SPN)
- HelloRoam appears as the carrier name on your phone's status bar through the SPN, a standardized field in the eSIM profile. Unlike most travel eSIM resellers, HelloRoam provisions its own Service Provider Name.
- Public Network Name (PNN)
- The PNN is the network-name field in your eSIM profile, defined in the mobile standard 3GPP TS 31.102 (EF_PNN). Your phone can read it to show the name of the network you're on.
- Access Point Name (APN)
- HelloRoam eSIMs auto-configure their Access Point Name during installation. Your device connects to the strongest local network infrastructure without manual settings.
Prices are our retail rates across 185+ countries. Plan recommendations use real traveller feedback and network performance data. You can get a refund on unactivated eSIMs within 180 days.
Future Syncs Limited 124 City Road, London, EC1V 2NX, UK +44 203 916 6249 help@helloroam.com Reg. No. 15950168
