Best Thailand eSIM: Tested Beyond Bangkok and Beach Resorts
After traveling throughout Thailand, these are the eSIM plans I would consider for different trips—from a short Bangkok stay to several weeks exploring the country.
Thailand is one of the easiest countries I’ve traveled in for getting online. A decent connection in Bangkok is rarely the problem. The trick is buying a plan that still suits you when Bangkok is behind you and you’re on a bus to the north, waiting for an island ferry, or staying somewhere far from the resort strip.
I’ve traveled through Thailand’s cities, islands and northern routes, and I don’t choose an eSIM by the brand name alone. I look at which Thai network it uses, how much data I will realistically need, and whether the plan works for the whole journey. A cheap 5 GB package is often perfectly sensible. At other times I would rather pay a few euros more for better network options or a local Thai number.
Below are the eight eSIM providers I would compare today, including three good additions to my previous shortlist: Ubigi, Saily and Jetpac. I’ll also explain when I would skip all of them and buy an AIS or True tourist eSIM directly.
What this advice is based on: my time traveling in Thailand gives me a sense of the routes, places and situations where connectivity matters. I also checked the available 2026 carrier research, provider plan pages and hotspot terms. I haven’t tested all eight eSIM brands side by side on the same device, so I won’t invent speed results or pretend any company can guarantee a signal on a mountain road or out at sea.
Affiliate disclosure: Some links to eSIM providers are affiliate links. If you buy through one, I may earn a commission at no additional cost to you. I recommend comparing the exact plan terms before purchasing, regardless of provider.
Which Thailand eSIM would I buy?
For a first visit covering Bangkok, Chiang Mai and one or two islands, I would start with Ubigi, Nomad and Airalo. Ubigi is unusually clear about its AIS and True Move network partners, Nomad has a useful range of data bundles, and Airalo gives you a choice between regular data-only plans and selected tourist-style packages with calling features.
I’d compare Ubigi and Nomad first, then check whether the particular bundle includes AIS or True and when its validity starts.
Saily and Airalo are worth pricing against Nomad. You may not need a big bundle for maps, Grab and messaging.
Compare Yesim, Jetpac or SIM Local for specific features—but price AIS and True tourist eSIMs if local calls matter.
I check the specific eSIM product, not just the provider’s list of partners. A company advertising AIS, True and dtac doesn’t guarantee that every individual package can switch among all of them.
Four questions I ask before buying a Thailand eSIM
I know it’s tempting to open a provider app, sort by price and buy the first 10 GB option. I’ve done enough traveling through Thailand to give myself another minute at this stage. These details affect the trip far more than a small price difference.
- Which network will I get? Thailand has two main mobile-network groups: AIS and True/dtac. AIS is the first one I look for on mixed itineraries, particularly when I’m heading beyond the biggest cities. But True is competitive in plenty of places. The plan’s network list is more useful than an eSIM logo or a generic 5G badge.
- Am I buying data only? Data-only works for Google Maps, Grab, LINE, WhatsApp, emails and online bookings. It does not give me a regular Thai phone number. If I want ordinary Thai calls or SMS, I compare the local AIS and True tourist products and the specific travel packages that include calling.
- When does my allowance start? Some plans start when they connect to a Thai network, while other products begin on installation. I always check that before scanning a QR code at home. It’s also worth checking how long after purchase you must activate the plan.
- Can I hotspot, and how much of ‘unlimited’ stays fast? Tethering permission and full-speed daily data are not interchangeable. Someone using a laptop each day needs to look beyond a large unlimited headline.
I do these checks before every trip. They take a minute, and they prevent most of the surprises that come from buying on price alone.
Which Thai network does the eSIM use?
An eSIM provider isn’t the same thing as a mobile network. When I compare Thailand plans, I always look for the local operator in the product details. I generally favor AIS if my itinerary includes several regions; True/dtac is also a very reasonable choice for Bangkok and established tourist destinations. That’s enough to narrow down most purchases without getting lost in technical benchmarks.
There is also an important change behind those names: True and dtac have combined their infrastructure, so I don’t count them as two completely independent coverage options. If you’re weighing those networks more carefully, I’ve compared the coverage, independent test results and practical differences in my AIS vs True/dtac guide.
My buying rule: check the local operator on the exact eSIM package, not just the provider’s home page. Then check the data, price and validity before paying.
Eight Thailand eSIM providers I would compare
There are more Thailand eSIM sellers than most travelers need to investigate. These eight cover the choices I find genuinely different: a clearly named Thai network, inexpensive fixed data, local-call products, more data, travel extras and multi-country options. I’m comparing what each offer is good for, not inventing download-speed winners.
Ubigi
Best for a varied Thailand route and a simple plan that can be topped up.
What I like about Ubigi is that I don’t have to guess which Thai network is involved. Its current Thailand plan page names AIS and True Move, permits hotspot sharing and lets me top up the same eSIM profile. That makes it a sensible starting point for Bangkok, the north and the islands rather than just a short resort stay.
What to check: its fixed-data bundles can be good value, but pick the validity and allowance for your trip. A multi-network listing does not guarantee a strong signal in every location.
Nomad
Best for city-to-island trips and straightforward prepaid data.
Nomad is still one of the first options I open when I want to buy a Thailand eSIM quickly. Its current country page lists True, AIS and dtac, sells several fixed-data sizes and supports hotspot use. For most holidays, being able to buy the amount of data I need without a complicated setup is the attraction.
What to check: the networks and daily high-speed allowance of the specific package. I would not assume every Nomad tourist or unlimited offer has identical activation or fair-use rules.
Airalo
Best for a compact bundle or a particular tourist-style eSIM.
Airalo is useful because it doesn’t sell just one kind of Thai eSIM. Its Maew data-only plans list AIS and True, while certain dtac-branded offers include local calling minutes. If I were spending a few days in Bangkok or needed a specific local-calling package, I would compare these rather than paying for a huge data allowance.
What to check: Maew and dtac packages are different products. Confirm whether your selection is data-only, what phone features it includes, and whether the validity clock starts on connection or installation.
Saily
Best for affordable fixed-data plans and people who value a simple app.
Saily makes sense for travelers who mostly need maps, restaurant searches, Grab and messaging. It has small fixed-data plans as well as unlimited-style products, and it allows hotspot use. Its published unlimited rule is refreshingly concrete: 5 GB per day at full speed, then data at up to 1 Mbps.
What to check: Saily is not my first choice solely for an undisclosed local carrier. If access to AIS is important for a particular rural or island route, verify the partner network before buying.
Yesim
Best for comparing heavier data packages with a Southeast Asia itinerary.
I look at Yesim when a normal little holiday bundle is not going to be enough, or when Thailand is followed by another country. It sells fixed and unlimited-style data products and its regional range can save you from juggling several eSIM installations across a longer trip.
What to check: the named Thai network, hotspot permission and fair-use rules on the exact package. In particular, I would get clear confirmation before buying unlimited data to use as a laptop connection.
Jetpac
Best for travelers who want hotspot sharing and optional airport/travel benefits.
Jetpac is worth a serious look, not because I need another eSIM app on my phone, but because its hotspot support and travel-related extras may suit a trip with multiple flights. It also markets AIS access in Thailand, and certain packages provide continued access to selected essential apps after the main data runs out.
What to check: Jetpac’s unlimited-style options can reduce speeds after a daily full-speed threshold; lounge and app-access benefits have eligibility rules. Check that the precise plan includes the feature you are paying for.
SIM Local
Best for comparing Thai-operator tourist-style offers online.
SIM Local is an interesting middle ground between the international data eSIM and the old airport SIM counter. I’d browse it if I wanted a tourist-oriented package with clearly described network or calling features, while still buying digitally before arrival.
What to check: SIM Local sells different packages. Don’t assume every Thailand product is issued by AIS or includes a Thai number; look at the individual network and calling details.
SimOptions
Best for travelers happy to compare plan details across several eSIM products.
SimOptions is a marketplace rather than a single uniform Thailand plan. I find that useful when I’m looking for a particular combination of validity, data and countries covered. One supplier might be attractive for Thailand alone; another might fit a multi-stop Asian journey.
What to check: network partners, calling features and validity differ by the individual product. I wouldn’t buy a Thailand-only listing expecting it to work in Laos or Malaysia.
The plan screenshots are snapshots of the providers’ offers. Prices, package inclusions and host networks can change; check your chosen product before paying.
What does a useful 10 GB Thailand eSIM cost?
If I’m going for two or three weeks and staying in places with Wi-Fi, 10 GB is one of the first sizes I price. It gives me room for navigation, messaging, searching transport options and a reasonable amount of browsing without paying for unlimited data I may never touch.
As an October 2026 reference, Ubigi listed 10 GB for 30 days at US$11 with AIS and True Move, Airalo’s Maew listed 10 GB for 30 days at US$11 with AIS and True, and Saily listed 10 GB for 30 days at about US$10.99. Nomad also has competitive 10 GB bundles, but the displayed currency and available offers depend on where you purchase.
These are published prices at the time of this update, not fixed rates. I wouldn’t choose one of them based on a difference of a few cents. I’d choose the network, validity, activation terms and ease of topping up that suit my journey.
One example: I wouldn’t buy a 30-day unlimited plan for a week in Bangkok simply because it sounds reassuring. But I also wouldn’t gamble on 3 GB if I knew I’d be relying on hotspot data between apartments and island transfers.
Want to check the details yourself? You can see the listed plans for Ubigi, Airalo and Saily.
Travel eSIM or an AIS / True tourist eSIM?
One reason I like writing about Thailand is that you have a perfectly good alternative to the international eSIM companies: the Thai mobile operators sell their own tourist eSIMs. Depending on the package, those may include a Thai number, local calls and substantial data allowances. They are worth checking, not something I would dismiss just because they are not an affiliate offer.
| What you’re buying | Why I’d consider it | Where the trade-off is |
|---|---|---|
| International travel eSIM | Easy to install before flying, familiar app, prepaid data and often convenient regional plans. | Most are data-only. The network, activation rules and hotspot conditions are specific to each package. |
| AIS Lucky Tourist eSIM | Direct AIS service, local calling features on eligible packages and tourist plans with substantial data. | Passport registration is required. Current official examples include 8 days for 499 THB, 15 days for 699 THB and 30 days for 1,199 THB. |
| True/dtac Tourist eSIM | Direct Thai operator service with local phone-number options. Good to compare if most of your trip is in populated areas. | Passport registration and product-specific limits; official True tourist examples also include 8 / 15 / 30-day packages. |
I would check the official AIS tourist eSIM packages and True tourist packages before committing to a long-stay travel plan. Those baht prices are examples, not a promise about the offer available on your travel dates.
My approach: for a two-week holiday with changing hotels, I usually prefer to have a travel eSIM ready before landing. If I’m staying for a month, using lots of data or need a Thai mobile number, I compare the local packages as well. It is often the more sensible purchase.
Don’t forget ID registration. Locally issued Thai tourist SIMs and eSIMs need passport registration. AIS also has additional identity-confirmation requirements for tourist SIM use beyond 60 days, so longer-stay travelers should check those rules directly.
Which Thailand eSIM makes sense for your itinerary?
A city break in Bangkok or Chiang Mai: I’d compare a reasonably priced fixed-data plan from Airalo, Saily or Nomad. For city sightseeing, it’s rarely worth buying more data than you’ll use.
Two or three weeks across Thailand: Ubigi and Nomad would be among my first comparisons. I’d check the local network for my chosen package, buy enough data for transfers and day trips, and keep maps available offline.
Mostly islands and beaches: I pay closer attention to the exact network when ferries and quieter places enter the plan. My Thailand islands eSIM guide covers individual islands and the kind of coverage differences that matter there.
Pai, Mae Hong Son or the northern mountains: I’d put coverage ahead of saving a few dollars and download maps before setting off. For the road-by-road details, see my remote north Thailand eSIM guide.
Working online for several weeks: you’ll need to think about laptop tethering, upload stability and a backup if accommodation Wi-Fi fails. I cover all of that in my Thailand eSIM guide for digital nomads.
Thailand-only eSIM or one plan for Southeast Asia?
If my trip continues from Thailand into Laos, Cambodia, Vietnam, Malaysia or Singapore, I always compare a regional eSIM before buying separate country plans. There is little pleasure in installing a fresh profile at every border when one sensible package could cover the journey.
But I read the included country list carefully. Nomad APAC, Jetpac regional products, Yesim and SimOptions do not necessarily cover exactly the same destinations, and similarly named plans from the same company can differ. A plan that includes Singapore might not include Laos or Cambodia, and vice versa.
My Nomad APAC eSIM review explains the differences between its regional packages; the Southeast Asia eSIM guide compares the broader options. If you’re only visiting Thailand, you may find the country-only plan easier and cheaper.
Two very different journeys: Bangkok → Luang Prabang → Hanoi needs a different country list from Bangkok → Kuala Lumpur → Singapore. I start with the places I’m visiting, not with the word “Asia” on the sales page.
How much data should I buy for Thailand?
I mainly use mobile data in Thailand for Google Maps, Grab, LINE, messaging, opening hours, hotel bookings and figuring out the next stop. Those everyday tasks generally need less data than people expect. Streaming, video calls, large photo uploads and sharing data with a laptop are what make the bill climb.
| Trip | Allowance I’d compare | For |
|---|---|---|
| 3–5 days, mostly Bangkok | 3–5 GB | Maps, Grab, messages, day-to-day browsing |
| 7–10 days, two or three stops | 5–10 GB | Navigation, tickets, occasional uploads |
| 14–21 days around Thailand | 10–20 GB | More transfers, regular browsing and a cushion |
| A longer stay with laptop work | 20 GB+ or an appropriate unlimited plan | Check daily high-speed and hotspot rules |
Those are starting points rather than promises about your usage. For most holidays I’d rather buy a sensible fixed allowance and top up than pay for a big unlimited plan I never need. If I were working online every day, I’d check the fair-use conditions much more carefully. My remote-work eSIM guide goes further into hotspot use and backup connectivity.
How I set up a Thailand eSIM without hassles
- Check the phone first. It must support eSIM and be network-unlocked. The same model name can have different SIM hardware depending on where it was sold.
- Buy for the dates and places I’m visiting. I check the local network, days of validity and whether the timer begins on installation or first use.
- Install while I still have dependable Wi-Fi. I use the QR code or app instructions, label the new line “Thailand”, and keep the installation email accessible. I don’t delete a profile unless support tells me to.
- At the airport, choose the Thailand eSIM as my mobile-data line. I switch data roaming on for that line if the provider requires it, and keep expensive roaming off on my home SIM.
- Check that it works before leaving. I open Maps, try a browser page and make sure I can retrieve my hotel information. Before ferries or mountain drives, I download maps and booking details offline.
Most modern dual-SIM phones can keep the home number for calls or verification messages while using the Thailand eSIM for mobile data, depending on the phone and home provider. But a data-only eSIM does not become a Thai phone number because WhatsApp or LINE calls work.
One last safety point: no eSIM is a substitute for planning around coverage gaps. The best AIS- or True-capable plan may still lose service on a ferry, in dense forest or in the northern mountains. Offline maps are easy insurance against that.
Thailand eSIM FAQs
What is the best Thailand eSIM in 2026?
For a mixed trip, I’d compare Ubigi and Nomad first, then check Airalo or Saily for smaller, inexpensive bundles. Ubigi names AIS and True Move on the Thailand plans I checked; with any provider, confirm the exact package’s network, validity and data allowance.
Is a travel eSIM cheaper than buying one in Thailand?
Sometimes, especially for short visits and moderate data use. For heavy use or longer stays, compare direct AIS or True tourist packages too. The right answer depends on the size of your allowance, whether you need Thai calls and how much setup you want to do.
Do Thailand eSIMs include a Thai phone number?
Most international data-only plans do not. Some travel products offer calling, and local AIS and True tourist eSIMs can include a Thai number. Check the specific plan before purchasing if local calls or SMS matter.
How much data do I need for two weeks in Thailand?
I’d start by comparing 10–20 GB for two weeks of navigation, transport apps, messaging and normal browsing. You may need less with good hotel Wi-Fi, or considerably more if you stream and upload often.
When should I install my Thailand eSIM?
I generally install it before departure while I have reliable Wi-Fi, but I first check when its validity starts. Some plans begin on installation, while others start when they first connect in Thailand. Follow the rules of your exact purchase.
Does a Thailand eSIM work in Cambodia, Laos or Vietnam?
Not unless you choose a regional plan that explicitly includes those countries. Before buying an Asia or Southeast Asia eSIM, check every country on your route. I compare those in my Southeast Asia eSIM guide.
Can I keep WhatsApp and my existing phone number?
Usually yes. On a compatible dual-SIM phone you can use a data-only travel eSIM for internet access while keeping your normal SIM active. Check your phone settings and turn off expensive home-carrier data roaming.
Should I buy unlimited data?
Only if your usage justifies it. I check how much stays at full speed, whether the plan allows hotspot sharing and the speed after any daily threshold. For a normal holiday, a fixed-data package is often enough.
Going beyond a straightforward Thailand trip?
If you’re deciding between Thai carriers, working online, spending most of your time on islands or driving through the northern mountains, these guides go into the details I would check for those situations.
What I would choose: for a two- or three-week trip through Bangkok, Chiang Mai and the islands, Ubigi and Nomad would be at the top of my comparison, with Airalo and Saily very much in the running on smaller, cheaper bundles. Jetpac gets a look when its hotspot features and travel extras suit the itinerary; Yesim, SIM Local and SimOptions are worth comparing for their particular data, local-style or regional offers. For a long stay or a Thai number, I would also check AIS and True directly. I don’t need the most expensive eSIM. I need one that does its job in the places I’m going.
Last Updated on 16/10/2026 by Panos
