HelloRoam sells prepaid eSIM data plans for Thailand starting at $3.49 per day. Your e SIM connects to local 4G/5G networks the moment you land. Activate by QR code in under two minutes. Keep your AT&T, T-Mobile, or Verizon number on dual SIM while your e-sim handles data.
- networks
212+- 5G support
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Your sim for Thailand Plan with Nationwide Coverage
The cheapest eSIM for Thailand starts from $3.49. Local 4G/5G data on top carrier networks in Thailand. Works on all eSIM compatible phones. Airport SIM counters charge inflated rates and stack long queues at arrivals. Your Thailand eSIM card plan from HelloRoam starts at $3.49 on AIS, DTAC, TrueMove H, and 1 more 5G networks across Thailand. Scan a QR code at home and land with data already live on your phone. Every plan is fully prepaid with no contract, no credit check, and no roaming fees.
Thailand eSIM with fast 5G coverage
HelloRoam offers eSIM plans for Thailand starting at $3.49. Get 4G and 5G data on local networks. Scan a QR code before you leave and arrive connected.
- Plans start at $3.49 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
- $3.49
- 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 eSIM 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 & checkout online
Select a data plan for your destination and complete checkout.
2Scan the QR code
Scan the QR code on Wi-Fi to install your eSIM. If it says not valid or already added, check your phone's list of lines first.
- 3
Activate in minutes: ready on arrival
Install your eSIM before you fly. Your plan's days start at the eSIM's first connection to a supported network in your destination. When you land, switch the line on, turn on data roaming for that line and pick it for mobile data.
4Manage it all from our mobile app
Track usage, top up data in the app, and manage all your eSIMs in one place.
Trip changed? Don't worry, we've got you!
Plans can change anytime, and that's okay. With HelloRoam, unactivated and unscanned eSIMs qualify for a full refund within 180 days of purchase.
Learn more about our refund policyHelloRoam Thailand eSIM vs AT&T, T-Mobile and Verizon roaming
When comparing an eSIM vs a travel SIM card for Thailand, HelloRoam wins on price. It costs less than Verizon TravelPass ($10/day), T-Mobile international add-ons, and AT&T International Day Pass ($12/day). Skip the airport SIM shop and get a prepaid eSIM for Thailand from $3.49 with a 180-day refund on unactivated eSIMs.
| Feature comparison | HelloRoam | Local provider | 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 |
Thailand SIM card vs eSIM: Which One Should You Pick?
A SIM card for Thailand means joining the long queue at Suvarnabhumi arrivals before you reach your hotel. A HelloRoam eSIM arrives by email before your flight. Plans start at $3.49 on AIS, DTAC, TrueMove H, and 1 more 5G networks. Scan the QR at home and land already connected.
A Thailand prepaid SIM card requires passport registration at the point of sale under Thai telecom rules. A HelloRoam eSIM skips that entirely. No ID hand-off, no queue at BKK, and no contract on any plan.
To buy sim card for Thailand at the airport you pay tourist counter rates and take what is available. HelloRoam lets you compare plans at home and choose the right size before departure. No pressure purchase and no hidden fees.
A tourist sim card Thailand sold at airport kiosks covers one provider only. HelloRoam eSIM plans run on AIS, DTAC, TrueMove H, and 1 more 5G networks for strong reach across Bangkok, Chiang Mai, and the southern islands.
A data sim card Thailand from the airport gives fixed data with no refund guarantee. HelloRoam plans come with a 180-day money-back guarantee and start at $3.49 so you always get fair value.
An eSIM in Thailand from HelloRoam starts at $3.49 on AIS, DTAC, TrueMove H, and 1 more 5G networks, activated by QR with no contract. Airport counter SIMs cost fixed tourist pricing with no refund.
Why Travelers Choose an e SIM for Thailand
24/7 live chat support
Need help at 2 AM in Tokyo or midnight in Paris? HelloRoam support is available 24/7. Message us and a real person responds in under 2 minutes. No bots, no wait queue. Mobile data problems don't wait for business hours, and neither do we.
Best Travel eSIM for Thailand
Get unlimited data at 4G/5G speeds the moment you land in Thailand. Skip roaming fees from AT&T, T-Mobile, and Verizon. HelloRoam connects you to local carrier networks in minutes, whether you are traveling or working. Wireless connectivity starts before you clear customs.
Keep your AT&T, T-Mobile, or Verizon number
Keep your AT&T, T-Mobile, or Verizon number active for calls and texts. HelloRoam runs as a second eSIM line on any dual SIM compatible phone, so you never miss a call from home. Your cellular coverage for calls stays on your home carrier while HelloRoam handles data abroad.
212+ partner networks worldwide
HelloRoam eSIMs connect to 212+ carrier networks across 185+ countries. Your phone switches to the strongest available 4G/5G signal automatically. Network access is instant, with no manual carrier selection needed.
Data alerts before you run out
HelloRoam alerts you at 80% data usage so you never hit a surprise cap mid-trip. Top up instantly from the app 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 Thailand e-sim card connects to trusted local 4G/5G networks. HelloRoam picks the strongest available signal for navigation, streaming, and video calls. Internet abroad at local carrier speeds means maps load fast and video calls stay clear.
Regional and global eSIM plans
Heading to multiple countries? HelloRoam regional eSIM plans cover Europe, Asia, the Americas, and 185+ destinations in one purchase. Tourist eSIM or long-stay: choose fixed data or unlimited data plans. One account, no SIM swaps. Digital connectivity follows you across borders on a single prepaid plan.
Free hotspot and data sharing in Thailand
Share your Thailand eSIM data with a laptop or tablet using your phone's built-in hotspot. No extra fees, no setup required. Works on all eSIM compatible phones. One data plan covers your whole travel kit, making the most of every gigabyte you buy.
eSIM Prices for Thailand
The best eSIM for Thailand at every price point. Compare plans for every trip length.
| Number of days | Price |
|---|---|
| 1 day | $3.71 |
| 3 days | $10.57 |
| 7 days | $22.85 |
| 15 days | $44.52 |
| 22 days | $60.40 |
| 30 days | $75.68 |
Compare eSIM Providers for Thailand
American travelers rate HelloRoam eSIM for its 180-day refund policy, zero activation fees, and 24/7 live support. See how HelloRoam compares to Airalo, Holafly, Saily, and other eSIM providers for Thailand on the things that matter most.
| 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 card is a digital SIM built directly into your phone. There is no plastic 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 Thailand works as a prepaid data plan with no airport SIM shop, no replacement SIM card, and no carrier contract. Follow the step-by-step setup guide to get connected before your flight. guide
Mobile Connectivity Guide for Thailand
Thailand has strong 4G coverage across the country and growing 5G in Bangkok and major cities. AIS, DTAC (now True Move H), and True Move H cover the tourist trail from Bangkok to Chiang Mai and all the way down to Phuket and Koh Samui.
With a HelloRoam eSIM, you connect the moment you land at Suvarnabhumi or Don Mueang without visiting a counter.
- HelloRoam connects to AIS 5G, DTAC 5G, TrueMove H 5G and 1 more in Thailand
- 4G and 5G available in Bangkok, Chiang Mai, Phuket, and Pattaya
- Activate via QR code before departure
- Instant connection at Thai airports
eSIM Travel Tips for Thailand
Install your eSIM before your flight
Set up your HelloRoam eSIM profile at home before flying to Thailand. At Bangkok's Suvarnabhumi airport, skip the long SIM card queues. Enable data roaming in your phone settings and you are online before you reach the taxi rank.
Download offline maps for islands and temples
Remote islands like Koh Tao and inland temple complexes can have weaker signal. Download offline maps for your whole Thailand itinerary before departure. Google Maps offline mode still shows your real-time GPS position.
Use resort Wi-Fi to save data
Most Thai hotels and resorts offer free Wi-Fi. Use it for streaming and large downloads to save your HelloRoam data for day trips, markets, and temple visits where you need navigation and real-time search.
Keep your home SIM for calls
On a dual-SIM phone, keep your home SIM for voice calls and texts. Set the HelloRoam eSIM as your data line in Thailand. You stay reachable on your home number while getting fast local data speeds.
Know the emergency number in Thailand
In Thailand, the tourist police number is 1155 and the general emergency line is 191. Save these before departure. Emergency calls function on any network regardless of your data balance.
Mobile Networks in Thailand: What You Need to Know
Thailand's main operators are AIS, True Move H (merged with DTAC), and DTAC. AIS leads in rural coverage while True Move H is strong in cities. 5G is live in Bangkok with expansion underway. 4G LTE covers the entire tourist corridor from Chiang Mai through Bangkok down to the southern islands. Signal on boats between islands can be intermittent. Your HelloRoam eSIM selects the strongest available network automatically.
- AIS
- 5G
- DTAC
- 5G
- TrueMove H
- 5G
- True Move
- 4G
HelloRoam eSIM vs Local SIM vs Roaming in Thailand
Here is an honest comparison of your connectivity options for a trip to Thailand.
| Category | HelloRoam eSIM Recommended | Local SIM Card | Your Home Carrier Roaming |
|---|---|---|---|
| Typical cost | From $3.52 total | $8.00–$28.00 total | $10.00–$20.00/day |
| Details | Plans start at $3.49. Buy online, scan a QR code at home, and land in Thailand already connected. No airport SIM kiosk queue, no ID registration required on arrival. | Tourist SIMs are sold at Thai airports and 7-Eleven stores. They are affordable but require passport registration and take time to set up on arrival. | Most carriers charge $10 to $15 per day in Thailand. A two-week vacation can cost $140 to $210 in roaming fees for data alone. |
Prices approximate as of . Actual savings vary.
Best Time to Visit Thailand
November to February is the coolest and driest period and the peak tourist season. Expect busy beaches and popular temples during this time. March to May is hot. The monsoon season from June to October brings rain but fewer crowds. Mobile networks handle tourist demand well year-round in cities. Islands like Koh Samui can experience reduced signal during heavy rains.
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 an eastern Bangkok district home to The Mall Bangkapi and a busy residential community. HelloRoam keeps you connected across the Thai capital.
AIS and True Move cover Bang Kapi with strong 4G. The MRT Brown Line extension to Bang Kapi will improve transit connectivity further.
Chiang Mai
Explore Chiang Mai with a HelloRoam eSIM plan and stay connected across all of Thailand.
AIS 5G covers Chiang Mai city and the airport. Signal holds in the Old City moat area and along the Nimman Road strip.
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 royal beach resort town, a sophisticated destination with a historic train station, night markets, and wide sandy beaches. HelloRoam keeps you online.
AIS covers Hua Hin beach and town with solid 4G. Coverage is consistent along the promenade and market areas.
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
HelloRoam keeps you online in Pattaya with fast mobile data across all of Thailand.
AIS and TrueMove H both run 5G in Pattaya. Coverage is strong along Walking Street and the full beachfront strip.
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 major commercial hub, a gateway to prehistoric Ban Chiang UNESCO site and the Laos border. HelloRoam keeps you connected in Isaan.
AIS and True Move cover Udon Thani with strong 4G. Activate before landing at Udon Thani Airport. Coverage continues to the Laos border at Nong Khai.
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Reviews
What Our Customers Say
Real reviews from Trustpilot and the App Store, quoted as written.
40k+ travelers 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
HelloRoam Thailand eSIM Questions Answered
How does a Thailand sim compare to buying data at Suvarnabhumi Airport?
An e SIM Thailand plan from HelloRoam skips the Suvarnabhumi Airport counter queue. Thai law requires passport registration for physical SIMs, but eSIM setup is fully online. Plans start at $3.49 on AIS, DTAC, TrueMove H, and 1 more 5G networks covering Bangkok, Chiang Mai, Phuket, and the southern islands. Activate by QR at home and walk past the BKK kiosks with data already live on your phone.
Does an e SIM Thailand plan work across Phuket and the southern islands?
Phuket, Koh Samui, Koh Phangan, and Krabi all sit within AIS, DTAC, TrueMove H, and 1 more 5G tower range. Your e-sim Thailand plan from HelloRoam covers each island with no roaming surcharge as you ferry between them. Activate by QR before departure and keep your beach photos uploading from Patong to Hat Rin without switching plans.
Does a Thailand eSIM work at Chiang Mai temples and on overnight train routes?
HelloRoam plans use AIS, DTAC, TrueMove H, and 1 more 5G networks at Doi Suthep, the Old City temples, and Chiang Mai Night Bazaar from $3.49. Overnight sleeper trains pick up tower signal at station stops along the northern line. Your data stays active through platform gaps and continues working when you reach Bangkok. No contract on any order.
Should visitors choose unlimited data for a four-week Thailand trip?
Four-week visitors often burn through fixed data on Bangkok street food videos and Chiang Mai temple livestreams. Unlimited HelloRoam plans on AIS, DTAC, TrueMove H, and 1 more 5G networks remove the data cap from $3.49. Stream, map, and post freely from Pai to Railay Beach. Activate by QR before your flight to BKK and skip the Suvarnabhumi counter line. No contract on any plan.
What is the best eSIM for Thailand?
HelloRoam is a top eSIM choice for Thailand, with plans starting at $3.49 and 4G plus 5G coverage on AIS, True Move H, and DTAC networks. Buy your plan before departure, scan the QR code at home, and arrive in Bangkok or Phuket already connected.
Does a HelloRoam eSIM work in Thailand?
Yes, HelloRoam eSIM plans work across Thailand on local 4G and 5G networks. Buy before departure, scan the QR code, and you are connected when you land.
How do I activate an eSIM for Thailand?
Buy your plan at helloroam.com, scan the QR code in your phone settings, and enable data roaming on arrival in Thailand. The process takes about five minutes and can be completed before your flight.
How much does an eSIM for Thailand cost?
HelloRoam eSIM plans for Thailand start at $3.49 per day. Longer plans are available for full-length trips, making Thailand one of the most affordable eSIM destinations.
Is my phone compatible with an eSIM for Thailand?
Most iPhones from the XS (2018) and many Android phones from major brands support eSIM. Check your phone settings for 'Add Plan' or 'Add eSIM' to confirm before purchasing.
Does HelloRoam eSIM include calls and texts in Thailand?
HelloRoam eSIM plans for Thailand are data-only. Use WhatsApp, LINE, or FaceTime for calls and messages. Emergency calls work on any local network without data.
How much data do I need for two weeks in Thailand?
Two weeks in Thailand with maps, social media, messaging, and light browsing uses about 5 to 8 GB. Streaming video daily or making video calls will push that to 10 to 15 GB. Use hotel Wi-Fi to manage usage on a longer trip.
Can I use hotspot tethering with my eSIM in Thailand?
Yes, HelloRoam eSIM plans for Thailand support hotspot sharing. Share your 4G or 5G connection with a laptop or tablet on day trips, tours, or while traveling between cities.
Is an eSIM cheaper than roaming in Thailand?
Yes. Carrier roaming charges for Thailand typically run $3.49 per day. A HelloRoam eSIM for Thailand starts at $3.49 per day, saving a significant amount on a typical 10 to 14 day trip.
Can I keep my regular number with an eSIM in Thailand?
Yes. On a dual-SIM phone, keep your home SIM for calls and texts while HelloRoam handles your data. Your home number stays active throughout your stay in Thailand.
What should I do if my eSIM stops working in Thailand?
Toggle airplane mode on and off to reconnect to the Thai network. Check that data roaming is enabled in settings. Contact HelloRoam via the in-app chat if the issue continues.
What to Know Before You Buy
eSIM requires an unlocked, eSIM-compatible device. Check your phone settings before purchasing.
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 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 the eSIM profile, defined in 3GPP TS 31.102 (EF_PNN). Your phone can read it to show the name of the network you are using.
- 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
