Travel Thailand eSIM | AIS, TrueMove & dtac Coverage
Roami
Roami is a global eSIM carrier focused on travel connectivity. This guide is compiled from network data, official carrier and manufacturer documentation, and traveler inquiries.
📑 Table of Contents
A Thailand eSIM is only as good as the network behind it, and the gap between Thailand’s three national networks widens the further you travel from Bangkok. On Ookla’s 1H 2025 Thailand report, AIS was the Best Mobile Network overall and the Best 5G Network, with a Speedtest Connectivity Score of 76.05. TrueMove H posted the highest 5G Availability at 74.2%. dtac trails on raw speed but still delivers a Consistency Score of 92.5%. Which one fits therefore depends on your itinerary: the city-and-coast circuit, or the hills and the smaller Gulf islands. Marketing and reality sometimes diverge in Thailand; when they do, we say so, and the registration section carries the fine print that bites.
Device support varies, and a first profile install is unfamiliar territory for most travelers. Both gaps are covered elsewhere — the eSIM compatibility page and the activation explainer — so this page can stay on the networks.
If you read nothing else: Staying in Bangkok, Phuket or Chiang Mai? AIS is the most awarded network and TrueMove H holds 5G most often. Heading to the islands or the northern mountains? AIS has the strongest rural and island reputation. Want to buy straight from a Thai carrier as a visitor? You can, but NBTC rules mean a passport plus a live facial scan at the counter. Or skip the paperwork: free trial eSIM tests the networks at no cost; apply code WEB20 for 20% off Thailand prepaid eSIM plans.
Thailand eSIM carriers: AIS, TrueMove H and dtac
AIS, TrueMove H and dtac side by side
| AIS | TrueMove H | dtac | |
|---|---|---|---|
| Prepaid eSIM for visitors | Tourist eSIM sold online and at AIS shops and airport counters | Tourist eSIM sold online and at True counters | Tourist eSIM sold under the True Group after the 2023 merger |
| Where it wins | Best overall network and best 5G network on Ookla 1H 2025 | Highest 5G availability nationwide | Cheapest entry price on several tourist tiers |
| Cheapest tourist entry | 8-day 15 GB plan around 299 THB | 8-day 15 GB plan around 299 to 449 THB | 8-day 15 GB plan around 299 THB |
| Getting it as a visitor | ★★★ — buy online for eSIM, or passport plus facial scan in store | ★★★ — buy online for eSIM, or passport plus facial scan in store | ★★★ — same online or in-store path under the True Group |
The row that decides your trip is the last one: all three networks sell tourist eSIMs, but a physical SIM bought in Thailand forces you through NBTC registration with a passport and a live facial scan. The eSIM routes that skip the counter are the ones sold online before you fly, and they land you on the same AIS, TrueMove H or dtac towers.
NT and the reseller brands on AIS and TrueMove H
Beyond the big three, Thailand keeps a state-owned fourth network and a tier of mobile virtual brands that rent capacity from AIS or True. They rarely undercut the majors, but they explain why some listings show unfamiliar names sitting on familiar towers.
| Brand | Network it runs on | eSIM | Who it suits |
|---|---|---|---|
| National Telecom (NT), formerly my by CAT | Own 2300 MHz network plus roaming agreements | eSIM on some postpaid plans | Long stays and users who want a state-owned alternative |
| Aimobile and other mobile virtual brands | Ride the AIS or True networks | Varies by brand | Budget travelers who want AIS coverage without AIS paperwork |
| Travel eSIM resellers | AIS, TrueMove H or dtac | Delivered by QR code before travel | Visitors who want to skip the passport queue entirely |
Two cautions. First, budget brands that ride another network cap you to that host network’s coverage, so a mobile virtual brand on AIS gives you AIS towers and nothing else. Second, a prepaid plan bought from any single carrier is tied to one network, which matters the moment you leave the city or cross to a quieter island.
Can you buy a Thailand eSIM from AIS?
| Direct from a Thai carrier | Travel eSIM on a Thai network | |
|---|---|---|
| What you need | Passport plus a live facial scan; some routes need a Thai address for postpaid | A compatible, unlocked phone |
| How the profile arrives | In-app activation, in-store setup, or a carrier-issued QR code | QR code or app install immediately after checkout |
| Typical 15 GB cost | Around 299 to 699 THB for tourist tiers, plus the in-store registration step | A single upfront price, no registration queue |
| Network access | One carrier | Automatic switching between AIS, TrueMove H and dtac where available |
| Best for | Stays of a month or more, or anyone who needs a Thai phone number | Trips of one to three weeks, and anyone who wants to be online on landing |
For a standard two-week trip the travel eSIM wins on price. A Thai prepaid plan charges per package and ties you to a registration appointment; a travel eSIM buys data at wholesale and lets the device move between networks. Where the carrier wins is longevity and voice: a real Thai number, local calls, and a plan that still works in month three.
A multi-network eSIM profile is the practical middle path: Roami’s Thailand eSIM keeps the convenience of instant delivery, switches automatically between AIS, TrueMove H and dtac, and still lands you on AIS in the islands and TrueMove H in the city without buying twice.
Is your phone compatible with a Thailand eSIM?
Three things decide whether your phone works on a Thai carrier: its bands, its lock status, and a short list of device-specific quirks. All three are covered below.
Do international phones support Thai network bands?
Thai carriers build their 5G on specific bands — notably n28 (700 MHz) for rural reach, n41 (2600 MHz) and n78 (3500 MHz) for city capacity, plus n1 and n3 in metro areas. Plenty of international handsets, including several iPhone regional variants, ship without the full Thai mid-band stack. Those phones still work: they fall back to 4G once you leave dense urban areas, which is fine downtown and frustrating on a quiet island.
Band charts rarely help a traveler in practice. The dependable step is to match the model number, not the marketing name, against the device compatibility list. If you would rather understand the mechanics first, what happens when a phone loads an eSIM profile has the detail.
| Technology | Bands used in Thailand |
|---|---|
| 4G LTE | B1 (2100 MHz), B3 (1800 MHz), B5 (850 MHz), B8 (900 MHz), B20 (800 MHz), B28 (700 MHz), B40 (2300 MHz) |
| 5G NR | n1 (2100 MHz), n3 (1800 MHz), n28 (700 MHz), n40 (2300 MHz), n41 (2600 MHz), n78 (3500 MHz), n79 (4500 MHz) |
A phone with n28 and n41 covers the Thai mid-band stack that carries most 5G capacity; missing those bands means more fallback to 4G.
What if your phone is carrier-locked?
A locked phone is the most common reason a Thailand eSIM install simply fails, and Thailand has no rule forcing carriers to unlock devices for you.
Thailand does not require carriers to unlock a phone after a set period, so the unlock depends entirely on the policies of your home carrier. If the device is paid off, most home carriers will clear it within hours, often for free; if it is still on a payment plan, the lock stays until the balance is settled.
Check it: on iPhone: Settings -> General -> About -> Carrier Lock. When it reads “No SIM restrictions”, you can install straight away. A “SIM locked” result blocks any outside profile until the operator unlocks the phone.
Fix it: approach the operator that locked the handset and ask them to release it. Only then try installing your Thailand eSIM.
If you bought a used phone, or a phone from a carrier you no longer use, assume it may be locked and check before you fly.
Which device quirks affect a Thailand eSIM?
| Device | Symptom | What to do |
|---|---|---|
| Mainland-China iPhone models | No “Add eSIM” option at all — the hardware is disabled in that market | Not fixable; use a physical SIM or another device |
| Carrier-purchased Samsung | eSIM greyed out in settings | Ask the carrier to unlock it first, then reboot |
| International handsets without n28 or n41 | Fast in Bangkok, 4G-only on islands and in the hills | Expected behavior — see the regional notes below |
| Dual-SIM users | eSIM installed but no data | Set the eSIM as the line used for mobile data |
If these do not match your situation, the cause is on the phone side rather than the Thai network. Confirm your handset in the eSIM compatibility quiz first, then buy.
How to buy a Thailand eSIM and what it costs
Three Thailand eSIM routes exist, and they differ more in paperwork than in price: AIS direct, TrueMove H direct, and dtac inside the True Group. Each route, step by step:
How to buy an AIS tourist eSIM
AIS is the largest network by coverage and the most awarded on Ookla’s 1H 2025 report. International visitors can buy a tourist eSIM two ways.
AIS eSIM, step by step:
- Buy online from the AIS tourist page or a reseller and choose eSIM at checkout, or pick up at an AIS shop or airport counter.
- If buying online, scan the QR code sent by email and label the line “Thailand.”
- If buying in store, hand over your passport and complete the live facial scan; staff activate the profile on the spot.
- Set the eSIM as your mobile data line and turn on data roaming.
AIS tourist tiers run from an 8-day 15 GB package around 299 THB up to 30-day packages near 899 to 1199 THB, with unlimited social-app tiers in between. Check your model before buying, and keep the AIS app for top-ups.
Does TrueMove H sell a tourist eSIM
TrueMove H is the consumer brand inside True Corporation, and it sells tourist eSIMs through the same online and in-store paths as AIS.
TrueMove H’s edge is 5G availability: Ookla measured the highest 5G Availability in Thailand at 74.2% for TrueMove H in 1H 2025. Its tourist tiers mirror AIS pricing, with an 8-day 15 GB package around 299 to 449 THB and 30-day unlimited packages near 1199 THB. The in-store rule is identical: passport plus facial scan, then instant activation.
Does dtac still sell its own tourist eSIM?
Yes. dtac merged with True in March 2023 to form True Corporation, and dtac still operates as its own consumer brand with its own tourist eSIM and SIM products. The two networks finished integrating their towers into a single “One Network” in October 2025, so a dtac eSIM now also benefits from the combined infrastructure.
dtac’s tourist tiers are usually the cheapest entry: an 8-day 15 GB package can start around 299 THB, a 15-day 30 GB package around 599 THB, and a 30-day package near 1199 THB. Coverage is strong in cities and decent on the main islands, but AIS still leads in the rural north and on the smaller Gulf islands, so weigh price against where you are headed.
Thailand tourist eSIM prices compared
These are the standard airport and official-channel tourist tiers. Prices vary by retailer and are a little higher at airport counters than online; all figures are in THB.
| Carrier | 8-day plan | 15-day plan | 30-day plan |
|---|---|---|---|
| AIS | 15 GB, about 299 THB | 30 GB, about 599 to 699 THB | 50 GB about 899 THB; unlimited about 1199 THB |
| TrueMove H | 15 GB, about 299 to 449 THB | 30 GB, about 699 THB | Unlimited, about 1199 THB |
| dtac | 15 GB, about 299 THB | 30 GB, about 599 THB | Unlimited, about 1199 THB |
Every tourist tier rides one carrier’s network and throttles after a fair-use cap rather than cutting off, so match the allowance to your streaming and map use.
What to prepare before buying a Thailand eSIM
- Passport — required by NBTC for any in-store SIM or eSIM registration; foreign visitors must show the original document
- A Thai address or hotel name — requested on some carrier registration forms, even for tourists
- A compatible, unlocked phone — check the lock status before you fly
- Wi-Fi — install the profile before you land, not at a congested airport counter
- A payment method — carrier apps and some counters prefer local methods; travel eSIMs take international cards
- IMEI and EID — dial
*#06#so support can identify the device if activation stalls
Thailand eSIM coverage and speed: AIS vs TrueMove H
Two variables matter in this section: real-world speed where you are heading, and the shape of your trip. The performance data further down answers the speed question; the trip table answers the other.
AIS vs TrueMove H: which Thailand carrier is faster?
All figures below come from Ookla’s Speedtest Connectivity Report for Thailand, 1H 2025 (collection period January to June 2025) and are national-level carrier measurements. The full per-carrier report is published at the Ookla Thailand 1H 2025 report.
| Metric | AIS | TrueMove H | dtac |
|---|---|---|---|
| Speedtest Connectivity Score | 76.05 (Best Mobile Network) | 73.77 | 71.9 |
| Speed Score | 69.79 (fastest) | 65.68 | 60.99 |
| Consistency Score (%) | 95 | 93.4 | 92.5 |
| 5G Availability (%) | 72.7 | 74.2 (highest) | 65.2 |
| Game Score | 79.71 | 77.3 | 76.73 |
| 5-Star Rating | 3.6 | 3.22 | 3.23 |
Ookla’s report names AIS the Best Mobile Network overall and the Best 5G Network in Thailand for 1H 2025, while TrueMove H leads on 5G Availability and dtac sits third on every speed metric but stays within a few points on consistency. A blank cell means no published figure exists; nothing has been estimated to fill it. Two things worth noticing: AIS wins on the blended connectivity score that combines speed, consistency and coverage, while TrueMove H wins on how often you are actually attached to 5G.
For context on the country as a whole, Ookla’s Speedtest Global Index put Thailand’s median mobile download at 134.45 Mbps in August 2026, ranked 26th globally with 20 ms latency. Cable.co.uk prices 1 GB of Thai mobile data at about USD 0.41, 34th of 237 markets against a USD 2.59 global average — Thailand is one of the cheaper mobile-data markets in Asia.
Thailand eSIM picks, trip by trip
| The trip | Best-fit carrier | Why | Watch out for |
|---|---|---|---|
| City break — Bangkok, Chiang Mai, Pattaya | AIS or TrueMove H | Both are excellent downtown; AIS scores highest overall, TrueMove H holds 5G most often | Bangkok’s deeper MRT sections lose signal on every carrier |
| Beach holiday — Phuket, Krabi, Hua Hin | TrueMove H or AIS | Resort corridors are well covered on both; TrueMove H leads on 5G uptime | Patchy signal on boat crossings between islands |
| Island hopping — Koh Samui, Koh Tao, Koh Phi Phi | AIS | AIS has the strongest reputation on the smaller Gulf islands | Signal thins on the quiet stretches between islands |
| Northern mountains — Chiang Mai, Doi Inthanon, Mae Hong Son | AIS | Best rural and highland reach of the three | Mountain B-roads still drop to 4G or nothing |
| Gaming and streaming | AIS | Highest Game Score at 79.71 | Upload speeds trail a little behind download |
| Budget traveler | dtac | Cheapest tourist entry tiers around 299 THB | Weaker coverage once you leave the cities |
| Mekong border — Chiang Rai, Nong Khai | AIS | Widest rural footprint near the border | Cross-border signal from neighbor networks can confuse roaming |
| Multi-country loop | A travel eSIM with regional coverage | A Thailand-only eSIM dies at the border with no warning | Day trips to Laos or Cambodia catch people out constantly |
AIS vs TrueMove H: coverage compared
Thai coverage tracks the tourist map rather than the administrative one: solid along the Bangkok-to-Phuket corridor, then noticeably thinner the moment you trade the mainland for a smaller island. Row by row:
| Region | Reality on the ground |
|---|---|
| Bangkok and the central plain | 5G on all three networks across the main cities, and it holds along the highways between them. AIS is fastest; TrueMove H is most often on 5G. |
| Phuket and the Andaman coast | Reliable in resort towns; signal fades on the quieter stretches of coast road and on boat crossings. AIS and TrueMove H both cover the beaches. |
| Chiang Mai and the north | City coverage is fine — the drop-off comes on rural B-roads and up Doi Inthanon. AIS has the best highland reach. |
| Koh Samui, Koh Phangan and the Gulf islands | Solid on the populated islands, thin or absent on the small ones like Koh Tao’s remote bays. AIS leads off the main strips. |
| Isaan and the rural northeast | Towns are covered, the countryside between them is not continuous. AIS has the widest footprint; dtac is weaker here. |
| Mekong border provinces | Covered in town, but signal from Laos can appear on your phone and confuse network selection. Lock to a Thai carrier manually. |
Planning a route that leaves Thailand? Start with eSIM for Vietnam, compare Cambodia eSIM plans, or look at Malaysia eSIM plans. If your itinerary crosses borders more than once, an Asia plan saves you buying twice.
The point of a multi-network profile is exactly this automatic switching. A profile that can move between AIS and TrueMove H covers the regional gaps that any single-carrier plan cannot.
Thailand eSIM APN settings: do you need to enter them manually?
Tourist SIMs usually configure themselves, so treat the APN screen as a troubleshooting tool rather than a setup step. This section gives you every carrier value, the rare cases that need manual entry, and the tap-by-tap route.
APN values for AIS, TrueMove H and dtac eSIMs
You will only need these if you bought a SIM or eSIM directly from a Thai carrier. Travel eSIM profiles in Thailand arrive preconfigured with their own APN.
| Carrier | APN | Username | Password |
|---|---|---|---|
| AIS | internet |
blank | blank |
| TrueMove H | internet |
blank | blank |
| dtac | www.dtac.co.th |
blank | blank |
Leave username and password empty. Where an operator asks for a value, the profile documentation carries it.
Cases where a Thailand eSIM needs a manual APN
AIS, TrueMove H and dtac tourist profiles normally arrive preconfigured, so manual entry is a troubleshooting move rather than a setup step. Reach for it when:
- An older handset that does not pick up carrier settings automatically
- A profile installed via manual activation code rather than a QR scan
- A carrier-issued prepaid eSIM where automatic configuration did not run
- Almost never on a travel eSIM — that is the point of a managed profile
How to enter a Thailand APN manually
- iPhone: Settings → Cellular → tap the eSIM line → Cellular Data Network → enter the APN
- Android: Settings → Connections → Mobile Networks → Access Point Names → add a new APN
After saving, restart the phone. If data still will not load, check that the active data line is the Thai profile and not your home SIM.
How to get your Thailand eSIM working
Work through this section once: clean install to working data, plus the failure patterns Thai networks actually produce, in the order you’ll meet them.
How to set up a Thailand eSIM
| # | Check | What “good” looks like |
|---|---|---|
| 1 | Phone is not carrier-locked | About screen lists Carrier Lock: “No SIM restrictions” |
| 2 | Phone supports eSIM | *#06# shows an EID, or the compatibility lookup tool confirms your model |
| 3 | QR code and activation code saved | Screenshot stored on the phone and in cloud storage |
| 4 | Profile installed before departure | Install on Wi-Fi at home; the profile connects when you land |
| 5 | Data line and roaming set | eSIM selected for mobile data, data roaming on |
Do step 4 at home. Suvarnabhumi and Don Mueang arrivals halls have congested Wi-Fi exactly when you need it most, and a Thailand eSIM you install on the ground competes with everyone else’s.
Activating your Thailand eSIM
The universal part of the install — scan the code, label the line, switch roaming on — is in our step-by-step activation guide. What each Thai carrier adds on top of it:
- AIS: eSIM delivered by QR code from email or app; in-store activation needs passport plus facial scan
- TrueMove H: same online QR path; strong 5G in cities, so expect fast attach in Bangkok
- dtac: eSIM under the True Group; benefits from the combined One Network since October 2025
- Travel eSIMs: install by QR code, and the same profile can roam onto whichever of AIS, TrueMove H or dtac is strongest
Thailand eSIM troubleshooting in four steps
General activation errors — a profile that will not download, a scan that fails, an eSIM that installs but never registers — are covered in our eSIM error troubleshooting guide. Four patterns are worth naming upfront, because they keep resurfacing in Thailand.
A. The eSIM will not install
- Look in Settings -> General -> About: Carrier Lock has to show “No SIM restrictions”
- Check the QR code is smudge-free and unused, because most can be scanned only once
- Ask the carrier if the profile is still sitting in a pending state
B. Installed, but no signal bars
- Re-check the lock status
- Settings → Cellular → Network Selection → select AIS, TrueMove H or dtac manually instead of automatic, especially near the Mekong border where Laos towers appear
- Wipe the network settings, then restart
C. Signal bars, but no internet
- Check the APN once more against your carrier row above
- Point the data line at the Thai eSIM instead of your home SIM.
- Check you have not exhausted your data allowance — tourist plans throttle after a fair-use cap rather than stopping
D. “SOS” or “Emergency calls only” on an island
- The eSIM must be toggled on in the SIM manager
- Disable or delete any other active SIM or eSIM profile to avoid conflicts
- Reboot and reset network settings
- Only as a final step, delete the profile and reinstall from a new QR code
Details to gather before you message Thailand eSIM support
| Information to include | Where to look |
|---|---|
| Order or account number | Confirmation email |
| Phone model and OS version | Settings → About |
| EID | *#06# |
| Screenshot of the error | Take it before the screen changes |
| Current APN settings | Settings → Cellular Data Network |
| Data roaming status | Settings → Cellular → your eSIM line |
| Steps already tried | Keep a short list |
Common questions about Thailand carrier eSIMs
AIS eSIM plans for visitors
AIS sells tourist eSIMs online and at AIS shops and airport counters. Online eSIMs arrive by QR code with no in-person step; in-store SIMs require your passport and a live facial scan under NBTC rules. AIS tourist tiers start around 299 THB for 8 days and 15 GB.
What does registering a Thailand SIM involve?
For an in-store SIM or eSIM, NBTC requires passport registration plus a live facial scan for every new line. If you buy a TrueMove H eSIM online before you fly, the registration is handled by the seller and you skip the counter queue.
Is dtac still a separate network from True?
Yes. dtac merged with True in March 2023 to form True Corporation, but dtac still sells its own tourist SIM and eSIM products under the dtac brand. The two networks completed tower integration into a single One Network in October 2025, so dtac eSIMs now ride the combined infrastructure.
Who claims the widest coverage in Thailand?
AIS has the strongest reputation on the smaller Gulf islands such as Koh Tao and the quieter parts of Koh Samui and Koh Phi Phi. TrueMove H and dtac cover the main resort strips well but thin out as you move between islands or onto boat crossings.
Do you need a Thai number for your eSIM?
No. eSIMs for travelers are usually data-only and do not require a local number. You can use WhatsApp, LINE, FaceTime and similar apps for calls and messages. You only need a Thai number if a specific bank app, hotel booking or delivery service demands one.
Can I use a travel eSIM and my home SIM at the same time?
Yes, and it is a sensible setup. The usual split works well in Thailand: home number on the physical SIM, data on the local profile. Point the data setting at the Thai profile and leave your home line for calls. Turn roaming off on the home line so background traffic never reaches your bill. If a laptop is coming too, check the plan’s hotspot terms before counting on tethering.
How do I get my locked phone working in Thailand?
Ask the carrier it is locked to for an unlock before you travel; Thailand has no rule forcing a local unlock. Your handset shows it under Settings → General → About → Carrier Lock. A phone that reads “SIM locked” will not install any Thai eSIM until the lock is cleared by your home carrier.
Cheapest Thailand eSIM plans for budget travelers
dtac usually wins on entry price, with an 8-day 15 GB tourist package around 299 THB, while AIS and TrueMove H start near the same figure and climb to around 1199 THB for 30-day unlimited tiers. Budget brands and 7-Eleven blank SIMs start lower but need a package added on top.
Why did my eSIM stop working on a boat crossing?
Boat crossings between islands move you out of tower range, and your phone may latch onto a weak neighbor signal or drop to no service. This is expected on the quieter Gulf and Andaman routes. Download offline maps before you sail and re-select your Thai carrier manually once you land.
Can one eSIM cover Thailand and its neighbors?
A Thailand eSIM is valid only inside Thailand. Crossing into Laos, Cambodia or Malaysia needs a separate plan or a regional eSIM. Multi-country eSIMs cover regional travel, which is easier than buying at each border.
What the eSIM chip does when you land in Thailand
The eSIM chip sits inside your handset permanently and stores whatever profile you load onto it. Once the profile reaches the chip, the line behaves like any other connection on the phone. The delivery chain behind it, including why a QR code can only be used once, is covered in how an eSIM profile installs.
What if my Thailand eSIM will not activate?
Work the four Thailand-specific patterns above in order — lock status, network selection, APN and data line, then profile reinstall — and if it still fails, the wider error catalogue in troubleshooting guide covers the rest. Have the EID, order number and an error screenshot ready for support.
More questions? Full FAQ index
Sources behind this Thailand eSIM guide
- Ookla Speedtest Connectivity Report — Thailand 1H 2025 — the per-carrier report carries each carrier-level number used here: the 76.05 Connectivity Score and Best Mobile Network award for AIS, the 74.2% 5G Availability for TrueMove H, and the 92.5% Consistency Score for dtac.
- Ookla Speedtest Global Index — the Thailand entry is where the 134.45 Mbps national mobile median and the 26th global rank are refreshed month by month.
- Cable.co.uk worldwide data pricing — the full country table supplies the USD 0.41 average price per gigabyte for Thailand.
- NBTC (National Broadcasting and Telecommunications Commission) — the regulator site writes the SIM registration and facial-scan rules cited above (the site blocks scrapers but remains the authoritative publisher).
- Carrier pages — AIS, True Corporation and TrueMove H and dtac are where the plan prices, delivery methods and identification requirements were checked. A number makes it onto this page only after cross-checking against two independent sources.
These are third-party measurements only. Real-world results shift with your handset, the band you latch onto, and how loaded the local mast is.
Sort out your Thailand eSIM in a minute
Be reachable from Suvarnabhumi onward. Roami’s Thailand eSIM moves your data between AIS, TrueMove H and dtac without you touching a setting, and the city-to-island switch is automatic. New here? Take a free eSIM trial first, or use code WEB20 for 20% off a Thailand eSIM plan.
First-time Roami customers only
