HelloRoam offers a Thailand eSIM from €3.02, with access to 212+ carrier networks across 185+ countries. Your e SIM taps into local 4G/5G networks the moment you land, no roaming charges. Scan the QR code and you're online in under two minutes, on any eSIM compatible phone. Your Three Ireland, Vodafone IE, or Eir number keeps running on dual SIM while your e-sim handles the data.
- local networks
212+- 5G support
5G- to activate
2 minutes
Last updated
Thailand data plans from Bangkok to the Gulf Islands
Cheap eSIM for Thailand, starting from €3.02. Local 4G/5G data on top carrier networks in Thailand. Works on all eSIM compatible phones. Thailand is one of Ireland's most popular long-haul destinations, pulling Irish holiday-makers to Bangkok's street food, Phuket's beaches, and Chiang Mai's temples. Suvarnabhumi arrivals SIM queues can be long after a busy flight. An eSIMs Thailand from HelloRoam starts at €3.02 and covers Bangkok, Phuket, Chiang Mai, and the Gulf and Andaman islands. Activate by QR at home before flying from Dublin. No roaming charges, no contract, 180-day refund guarantee on unactivated eSIMs.
Thailand eSIM with fast 5G coverage
HelloRoam offers eSIM plans for Thailand from €3.02. Connect on 5G and 4G networks including AIS, TrueMove H, and dtac (True Corporation brand). Brilliant for Bangkok city breaks and Thai island holidays from Ireland.
- Plans start at €3.02 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
- €3.02
- Activation
- Under 2 min
- Guarantee
- 180 days
How to Set Up an eSIM in Thailand
Follow these steps to get started with an eSIM on your iPhone or Android.
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
Pick a data plan for your destination and complete checkout online.
2Scan the QR code
Scan the QR code to install your eSIM instantly.
- 3
Activate in minutes: ready on arrival
Your eSIM installs instantly and activates the moment you land.
4Manage everything from the app
Track usage, top up data, and manage all your eSIMs in one place.
Trip changed? No bother, we have got you sorted.
Travel plans shift, and that's grand. HelloRoam refunds unactivated, unscanned eSIMs in full for up to 180 days after purchase, no drama.
Learn more about our refund policyHelloRoam Thailand eSIM vs Three Ireland, Vodafone IE and Eir roaming
Comparing eSIM vs a travel SIM card for Thailand? Eir charges up to €5.99/day for Worldwide Roaming, Vodafone IE up to €6.99/day for Global Roaming, and Three Ireland applies daily charges outside its Go Roam zone. Skip the airport SIM counter at Dublin Terminal 1 and get a prepaid eSIM from €3.02 with instant QR activation and a 180-day refund on unactivated eSIMs.
| Feature comparison | HelloRoam | Irish carrier roaming add-on | Limited data eSIM |
|---|---|---|---|
| 180-day refund policy |  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 |
Why Travellers from Ireland Use HelloRoam e-sim for Thailand
24/7 live chat support
Stuck at 2am in Bangkok or sorting things out the night before a Dublin Airport departure? HelloRoam support answers on live chat, WhatsApp, or email, 24/7, with a real person replying in under five minutes. Connectivity issues don't wait for office hours, and neither does our team, wherever you've landed.
Best eSIM for Thailand
Travel to Thailand with a prepaid eSIM card that connects to local 4G/5G networks. Buy your plan, scan the QR code, and get online when you land. No Eir or Vodafone IE roaming fees, no SIM swap, no airport kiosk queue. A digital SIM profile installs in minutes so you arrive connected without touching a plastic card.
Dual SIM ready
Keep your Three Ireland, Vodafone IE, or Eir mobile number active for calls and texts. HelloRoam runs travel data on a second eSIM line on any dual SIM compatible phone. No need to choose between your Irish number and your data abroad. Running two lines on one handset means family back home can always reach you on your usual number while you use local data rates.
212+ partner networks worldwide
HelloRoam connects to 212+ carrier networks across 185+ countries. Your phone switches automatically to the strongest available 4G/5G signal. That breadth of mobile network coverage means reliable internet access from European cities to long-haul destinations in Asia and the Americas.
Usage alerts before you run out
We send you an alert at 80% usage so you never hit a surprise data cap mid-trip. Top up instantly from the app without reinstalling your eSIM. Real-time data monitoring keeps your allowance in view so you stay in control of your spend from day one to the last day of your holiday.
Local network speeds in Thailand
HelloRoam eSIM connects to local 4G/5G networks in Thailand at local data prices. You get fast speeds for maps, video calls, and streaming without paying Eir or Vodafone IE daily roaming rates. Plugging into the destination's own mobile infrastructure means you pay what residents pay, not what Irish carriers charge for international add-ons.
Global and regional plans
Heading to more than one country? HelloRoam regional plans cover Europe, Asia, the Americas, and 185+ destinations in one e-sim purchase. One multi-country data plan means no SIM swapping at borders and a single account managing all your international mobile data in one place.
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. Tethering and mobile hotspot support means the whole group stays online without buying separate data plans for every device.
Best eSIM Prices for Thailand
HelloRoam, the best eSIM Thailand. Compare plans and find the right data for your trip.
| Number of days | Price |
|---|---|
| 1 day | €3.21 |
| 3 days | €9.14 |
| 7 days | €19.75 |
| 15 days | €38.48 |
| 22 days | €52.20 |
| 30 days | €65.41 |
HelloRoam vs Other eSIM Providers for Thailand
eSIM provider reviews from Irish travellers consistently highlight the 180-day refund policy, zero activation fees, and 24/7 live support. See how HelloRoam compares to Airalo, Holafly, Saily, and other eSIM providers on the things that matter most for your Thailand holiday.
| Feature comparison | HelloRoam | Airalo | Holafly | Nomad | Saily | Ubigi |
|---|---|---|---|---|---|---|
| 180-day refund policy | 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 |
| €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 e SIM? How eSIM Works in Thailand
An eSIM is a digital SIM built directly into your phone: no plastic chip, no SIM tray. Scan a QR code to activate in under 2 minutes on any eSIM compatible iPhone or Android. It works as a prepaid data plan for Thailand travel with no airport SIM counter, no physical SIM card, and no carrier contract. Sort everything at home before you head to Dublin Airport, Shannon, Cork, or Knock and you are ready to go the moment you land. guide
Mobile connectivity guide for Thailand
Thailand is a favourite long-haul destination for Irish travellers and the mobile coverage is genuinely impressive. AIS, TrueMove H, and dtac (both True Corporation brands) provide strong 5G and 4G coverage across Bangkok, Chiang Mai, Phuket, Koh Samui, and all the main tourist hubs.
Remote jungle areas, island boat crossings, and mountain trekking routes can have limited signal. A HelloRoam eSIM is far more convenient than buying a SIM at Suvarnabhumi Airport after a long flight from Dublin.
- HelloRoam connects to AIS 5G, DTAC 5G, TrueMove H 5G and 1 more in Thailand
- 5G and 4G on AIS, TrueMove H, DTAC, and True Move across Bangkok, Phuket, and Chiang Mai
- Connect the moment you land at Suvarnabhumi or Don Mueang airports
- Covers the main Thai islands including Koh Samui, Koh Phangan, and Phi Phi
eSIM Travel Tips for Thailand
Thailand is outside the EU: no EU roaming
Thailand is well outside the EU and your Irish carrier's EU roaming does not apply. A HelloRoam eSIM from €3.02 is far more affordable than international roaming add-ons from Eir, Three IE, or Vodafone IE for a Thai holiday.
Activate at home before your long-haul flight
Thai holidays from Ireland typically involve a connecting flight through Dubai, Doha, or London. Set up your HelloRoam eSIM at home before you leave Dublin. Enable data when you land in Bangkok and you are connected immediately, no airport SIM queue needed after an exhausting journey.
Download offline maps for remote islands
Crossing to smaller Thai islands like Koh Tao, Koh Lipe, or Koh Chang often involves losing signal on the ferry. Download offline Google Maps tiles for each island before boarding the boat from the pier.
Bangkok transport apps need live data
Bangkok's BTS Skytrain and MRT metro, Grab ride-hailing, and food delivery apps like Grab Food all need a live data connection. Your HelloRoam eSIM keeps all these running from the moment you clear immigration at Suvarnabhumi.
Chiang Mai trekking and remote areas
Chiang Mai city has excellent coverage. Trekking into the hills north of the city towards the Myanmar border area can have very limited signal. Download your route maps offline before setting out on any multi-day jungle trek.
Mobile networks in Thailand: what Irish visitors need to know
HelloRoam connects on AIS, TrueMove H, and dtac in Thailand. AIS has strong national coverage including rural and northern areas. TrueMove H and dtac (a True Corporation brand since 2023) are both strong in Bangkok and popular tourist destinations. All three have 4G across the main tourist areas with 5G in Bangkok. Your eSIM picks the best available signal.
- AIS
- 5G
- DTAC
- 5G
- TrueMove H
- 5G
- True Move
- 4G
HelloRoam eSIM vs Irish carrier roaming in Thailand
Your connectivity picture for a Thai holiday from Ireland. Thailand is outside the EU.
| Category | HelloRoam eSIM Recommended | Thai SIM card | Eir, Three IE, or Vodafone IE Thailand roaming |
|---|---|---|---|
| Typical cost | From €3.04 total | €6.91–€24.20 total | €8.64–€17.29/day |
| Details | Plans from €3.02. Buy before your long-haul flight, activate at home, and arrive in Bangkok already on local data. Much cheaper than Irish carrier international roaming. | Available at Suvarnabhumi Airport counters but requires setup after a long flight. Tourist SIM packages can also be more expensive than a pre-bought eSIM. | Thai roaming rates from Irish carriers can be $3 to $10 per day. A two-week Thai holiday at international roaming rates could easily cost $40 to $150 in data charges. |
Prices approximate as of . Actual savings vary.
Best time to visit Thailand from Ireland
Thailand's best season for Irish visitors is November to April when the weather is dry and warm across the country. May to October is monsoon season with heavy rain, especially on the west coast and Andaman islands. The Gulf of Thailand side (Koh Samui, Koh Phangan) has a different weather pattern and can be visited from July to October. New Year and Christmas in Thailand are very popular with Irish travellers.
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 in the eastern suburbs, a busy residential and shopping area with good MRT access. HelloRoam keeps you connected across the city.
AIS 5G covers Bang Kapi. The MRT Yellow Line makes it easy to connect to the wider Bangkok network.
Chiang Mai
Chiang Mai is the cultural heart of northern Thailand, a city of ancient temples, elephant sanctuaries, night markets, and cool mountain air that feels like a world apart from Bangkok.
Chiang Mai's Sunday Walking Street and temple hopping are best navigated with HelloRoam data keeping Google Maps live.
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 oldest royal beach resort, a relaxed alternative to Phuket with a night market and easy train access from Bangkok. HelloRoam keeps you connected here.
AIS and DTAC cover Hua Hin with 4G. Take the train from Bangkok Hua Lamphong for a scenic journey.
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 on the Gulf of Thailand has reinvented itself as a resort city for all types of travellers, with beaches, waterparks, golf courses, and a buzzing entertainment scene.
Pattaya's beach road and back streets are easy to explore with HelloRoam data for maps and restaurant reviews.
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 a major northeastern Thai city and transport hub, close to the Laos border and good for exploring Isan culture. HelloRoam keeps you connected here.
AIS and TrueMove H cover Udon Thani with 4G. Activate before landing at Udon Thani Airport.
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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
Last updated
Your Thailand eSIM Questions Answered
How do Irish visitors avoid roaming charges in Thailand on a Bangkok and islands holiday from Dublin?
An e SIM Thailand plan from HelloRoam gives you local network coverage across Bangkok, Phuket, Chiang Mai, and the islands from €3.02. HelloRoam delivers a QR code to your email, activated at home before flying from Dublin. No roaming charges from your Irish provider, no physical SIM card, and a 180-day refund guarantee on unactivated eSIMs included.
What does an e-sim Thailand plan cover for an Irish trip to Bangkok, Phuket, and Koh Samui?
A HelloRoam e-sim Thailand plan covers Bangkok, Phuket, Chiang Mai, and all major Thai islands on local networks from €3.02. Activate the QR code at home before your Dublin flight so data is live at Suvarnabhumi on arrival. No physical SIM, no roaming fees, and a 180-day refund guarantee on unactivated eSIMs on every order.
What is the best eSIM for Thailand from Ireland?
HelloRoam is a top-rated eSIM for travellers from Ireland visiting Thailand. Plans start from €3.02 and connect through our worldwide network of 212+ carriers, giving you local 4G/5G speeds in Thailand. Activate via QR code in under two minutes, keep your Three Ireland, Vodafone IE, or Eir number on dual SIM, and enjoy a 180-day refund window on unactivated eSIMs. No daily roaming charge and no carrier contract.
How much does an eSIM for Thailand cost from Ireland?
A Thailand eSIM starts from €3.02. Fixed data plans run from 1GB to 20GB. Unlimited daily plans suit longer trips. All plans include local 4G/5G access with no overage charges and no carrier contract. That is far less than what Eir charges for non-EU Worldwide Roaming or Vodafone IE for Global Roaming.
Which networks does a Thailand eSIM connect to?
eSIM in Thailand connects to local 4G/5G networks. Your phone picks the strongest available signal automatically on arrival, no manual carrier selection needed. Coverage spans major cities, airports, main roads, and most rural areas. You get the same local network speeds as residents of Thailand, not the premium daily rates Eir or Vodafone IE charge for international roaming.
How do I get an eSIM for Thailand before flying from Ireland?
Getting your eSIM for Thailand takes three steps. First, choose your plan at helloroam.com and pay in EUR. Second, scan the QR code from your confirmation email in Settings under Mobile Data, then Add eSIM. Third, your e-sim installs in under two minutes and activates when you land. Do everything at home before you head to Dublin Airport, Shannon, Cork, or Knock. No shop visit, no physical SIM swap, no queue.
Does iPhone support eSIM for Thailand travel from Ireland?
Yes. iPhone XS and all newer models support your eSIM for Thailand. Go to Settings, tap Mobile Data, then Add eSIM, and scan the QR code from your HelloRoam email. Your Irish number stays active on your main SIM through dual SIM while HelloRoam handles all travel data on the eSIM line. iPhone 14 and later are eSIM-only with no SIM tray needed.
What is the best eSIM for Thailand?
HelloRoam is a top eSIM choice for Thai holidays for Irish travellers. Plans start at €3.02 with 5G and 4G data on AIS, TrueMove H, and dtac (True Corporation). Buy before your connecting flight from Dublin, activate at home, and arrive in Bangkok already connected. No airport SIM queue after a long flight.
Does a HelloRoam eSIM work in Thailand?
Yes, HelloRoam eSIM plans work across Thailand on AIS, TrueMove H, and dtac (True Corporation). Activate before your flight and connect the moment you land at Suvarnabhumi.
How much does an eSIM for Thailand cost?
HelloRoam eSIM plans for Thailand start at €3.02. Larger plans are available for two or three-week Thai holidays combining Bangkok, Chiang Mai, and island-hopping in the south.
Does the eSIM work on Thai islands?
Yes, the main tourist islands including Phuket, Koh Samui, Koh Phangan, Koh Lanta, and Phi Phi have solid 4G coverage in resort areas. Smaller islands and ferry crossings can drop signal. Download offline maps before island-hopping.
How much data do I need for two weeks in Thailand?
Two weeks in Thailand using Grab, Google Maps, social media, messaging, and video calls home typically uses 5 to 10 GB. Streaming Netflix in the evenings or making lots of video calls adds more. A 10 GB plan suits most Irish two-week Thai trips.
Which network does HelloRoam use in Thailand?
HelloRoam eSIM for Thailand connects on AIS with 5G coverage. Thailand has 4 network partners in the HelloRoam system. Your phone selects the strongest signal automatically. Buy before your flight from Dublin and connect the moment you land.
How many days does the Thailand eSIM last?
HelloRoam eSIM plans for Thailand last from 12 to 30 days depending on the data size you pick. Thailand has 5G coverage via AIS. A longer plan suits Irish travellers on extended holidays or working holidays abroad. Select your plan, scan the QR code at home in Ireland, and connect from the moment you land.
Does Thailand have 5G coverage?
Yes, Thailand has 5G coverage through AIS. HelloRoam eSIM plans connect on the best available 5G signal across Thailand. Buy your plan before your flight from Dublin and connect straightaway on landing.
What to Know Before You Buy
eSIM requires an unlocked, eSIM-compatible device. Check your phone settings before you buy.
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 network coverage, while rural or remote areas may have limited connectivity.
Install your eSIM before departure. 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, set out in the 3GPP standard TS 31.102 (EF_PNN). Your phone can read it to show the name of the network you're connected to.
- 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. Unactivated eSIMs qualify for a 180-day refund.
Future Syncs Limited 124 City Road, London, EC1V 2NX, UK +44 203 916 6249 help@helloroam.com Reg. No. 15950168
