HelloRoam stocks 8 Thailand eSIM plans from $3.49 on AIS 5G, with True Move 4G covering Koh Samui and Koh Phangan where AIS towers are thinner. AIS blankets Bangkok's BTS Skytrain and MRT lines underground. At $0.29/GB best rate, Thailand is among Asia's most affordable eSIM destinations. Prices verified May 2026.
ACBy Alex ChenSenior eSIM Analyst· Mobile network engineer by background. Covers Asia-Pacific for eSIMRated, focusing on how each provider handles activation, carrier attachment, and real-world speed on the partner networks it resells.||
Key takeaway
HelloRoam stocks 8 Thailand eSIM plans from $3.49 on AIS 5G, with True Move 4G covering Koh Samui and Koh Phangan where AIS towers are thinner. AIS blankets Bangkok's BTS Skytrain and MRT lines underground. At $0.29/GB best rate, Thailand is among Asia's most affordable eSIM destinations. Prices verified May 2026.
All Thailand eSIM plans compared
eSIM provider comparison for Thailand — Prices verified May 29, 2026
Provider
Price (5GB)
Coverage
Rating
Best For
HelloRoamBest Value
$6.99
AIS, True Move
4.9/5
Best overall
Airalo
$8.00
200+ countries
4.5/5
Most destinations
Holafly
Unlimited
160 countries
4.2/5
Heavy users
Our top 3 picks for Thailand
We evaluated 7 eSIM plans available for Thailand, comparing them on verified pricing, network coverage, activation speed, and app quality. Five stood out.
HelloRoam
Best Value
$6.99
5 GB / 30 days
Pros: Lowest price per GB, fast activation, Thailand coverage on AIS, True Move. Cons: Newer brand, smaller community than Airalo.
Two carriers support Thailand eSIM visitors: AIS on 5G and True Move on 4G. AIS operates the widest tourist-zone footprint, covering Sukhumvit in Bangkok, Nimman Road in Chiang Mai, and Patong Beach in Phuket. True Move provides solid 4G backup on Koh Samui and Koh Phangan.
AIS handles most eSIM plans; True Move powers the 50 GB short-burst option.
Coverage analysis
AIS 5G blankets Bangkok's BTS Skytrain and MRT subway lines with consistent signal underground. Suvarnabhumi and Don Mueang airports both activate instantly on AIS. Phuket International and Chiang Mai airports connect in under 60 seconds.
True Move holds 4G on the outer islands where AIS towers are thinner. Remote hill tribe areas in Chiang Rai province see reduced 3G speeds, but all major tourist destinations stay on 4G or better.
Activation
Install your e-sim QR code before landing at Suvarnabhumi (BKK) or Don Mueang (DMK). AIS activates within 60 seconds of powering on in Thailand. eSIM activation takes under 90 seconds at Suvarnabhumi (BKK), bypassing the 15-30 minute SIM card queue at the arrivals level 2 counter where physical SIM vendors operate. No registration counter visit required. iPhone XS or newer, Pixel 3a or newer, and Galaxy S20 or newer all support eSIM.
Your device must be carrier-unlocked before departure.
Data usage tips
Budget 500-600 MB per day for Grab rides, Google Maps, LINE messaging, and food delivery through Foodpanda. Translation apps using Google Lens camera mode add 150-200 MB per session. Streaming Thai TV on Netflix uses 700 MB per hour at standard quality.
A 10 GB e-sim plan covers a 2-week trip at typical tourist usage. QR payment scanning at 7-Eleven uses under 1 MB per day. Bangkok-Chiang Mai backpacker week (street food tour, temple visits, night market shopping): 4.1 GB covers Grab rides, Google Maps for tuk-tuk navigation, WhatsApp for tour bookings, and TripAdvisor for restaurant lookups.
HelloRoam's $9.97 10 GB plan on AIS 5G covers this comfortably, leaving 5.9 GB for the return trip or any island extension.
How we evaluated plans for Thailand
Thailand e-sim plans open at $3.49 for 1 GB over 7 days, or $3.49 per day on an unlimited daily data plan. The 5 GB / 30-day plan at $6.99 suits short stays. The 10 GB / 30-day plan at $9.97 is the clearest value pick at $1.00 per GB.
Long-stay travelers get 20 GB for $15.99 on AIS 5G. The 50 GB / 180-day plan at $48.00 serves extended trips and digital nomads. Best rate across 8 plans: $0.29 per GB at the 50 GB tier.
Best eSIM plans for Thailand in 2026
Thailand 50GB 10Days
True Move (4G)7 validityNo top-up
$14.38
50 GB · 7 validity
Per GB$0.29
TetheringYes
NetworkTrue Move
Thailand 20GB 30Days
AIS (5G)30 validityTop-up available
$15.99
20 GB · 30 validity
Per GB$0.80
TetheringYes
NetworkAIS
Thailand 50GB 180Days
AIS (5G)30 validityTop-up available
$48.00
50 GB · 30 validity
Per GB$0.96
TetheringYes
NetworkAIS
Thailand 10GB 30Days
AIS (5G)30 validityTop-up available
$9.97
10 GB · 30 validity
Per GB$1.00
TetheringYes
NetworkAIS
Thailand 5GB 30Days
AIS (5G)30 validityTop-up available
$6.99
5 GB · 30 validity
Per GB$1.40
TetheringYes
NetworkAIS
All eSIM plans for Thailand — Prices verified May 29, 2026
Plan
Network
Validity
Price
Thailand 50GB 10Days ⭐
True Move
7d / 50GB
$14.38
Thailand 20GB 30Days
AIS
30d / 20GB
$15.99
Thailand 50GB 180Days
AIS
30d / 50GB
$48.00
Thailand 10GB 30Days
AIS
30d / 10GB
$9.97
Thailand 5GB 30Days
AIS
30d / 5GB
$6.99
Thailand 3GB 30Days
AIS
30d / 3GB
$4.99
Thailand 1GB 7Days
AIS
7d / 1GB
$3.49
Thailand 2GB/Day
AIS
1d / 0GB
$3.49
Prices verified: May 2026
Questions about Thailand eSIMs
What are the best eSIM options for travelers visiting Thailand?+
HelloRoam's Thailand 10 GB plan costs $9.97 on AIS 5G. It covers 2 weeks of Grab navigation, LINE messaging, and social media without running out. Short-stay visitors doing a week in Bangkok do fine with 5 GB at $6.99. Digital nomads on 30-plus day stays get the best per-GB rate on the 50 GB plan at $48.00.
How much does an eSIM for Thailand cost?+
HelloRoam offers 8 Thailand plans starting at $3.49 for 1 GB on AIS 5G. Mid-range options cost $6.99 for 5 GB and $9.97 for 10 GB, both valid 30 days. Extended plans reach $15.99 for 20 GB and $48.00 for 50 GB over 180 days. The lowest per-gigabyte rate across all 8 plans is $0.29, making Thailand one of Asia's best-value eSIM destinations.
How do I activate an eSIM in Thailand?+
HelloRoam's Thailand eSIM activates in under 2 minutes via QR code with no store visit required. AIS registers your e-sim automatically on arrival at Suvarnabhumi or Don Mueang. Activation takes under 60 seconds, and no airport shop or counter needed. Your plan activates from the first day you consume data, so install it days before departure without losing validity.
How much data do I need in Thailand?+
Casual travelers using Grab, maps, and messaging need about 400 MB per day, so 3 GB covers a one-week trip. Active social media users posting Reels and Stories from Koh Samui or Pai need 5-7 GB per week. Remote workers on video calls or hotspotting a laptop need 10 GB per week. The 10 GB plan at $9.97 handles most two-week itineraries comfortably.
Which networks do eSIMs use in Thailand?+
Thailand eSIM plans connect to AIS (5G) and True Move (4G). AIS covers Bangkok, Chiang Mai, Phuket, and Koh Samui with the broadest tourist-zone footprint. True Move fills in on outer islands and powers the 50 GB burst plan. Your device selects the stronger signal automatically, and AIS handles the majority of plans available to international visitors buying eSIMs online.
Does my phone support eSIM in Thailand?+
iPhone XS (2018) or newer, Pixel 3a or newer, and Galaxy S20 or newer all support eSIM in Thailand. Your device must be carrier-unlocked, and phones bought on contract in the US or UK are often SIM-locked. Check Settings under About, or call your home carrier before departure. Most phones bought outright or unlocked after purchase work with any Thailand e-sim plan.
Is eSIM unlimited data available for Thailand?+
The unlimited daily data plan at $3.49 per day keeps you connected all day on AIS 5G. For the best per-GB rate, the 50 GB / 180-day plan at $48.00 on AIS 5G delivers $0.29 per GB.
Can I use a Bangkok data plan on my eSIM outside Bangkok?+
All AIS and True Move eSIM plans for Thailand cover the full country, not just Bangkok — plans start at $3.49 for 1 GB. The same plan works in Chiang Mai, Phuket, Koh Samui, and Pattaya at no extra cost. Coverage quality varies by location: AIS 5G in Bangkok's Sukhumvit area delivers 200-plus Mbps, while island and northern hill town areas drop to 4G LTE at 20-50 Mbps. No additional fees apply for travel outside Bangkok.
How do I choose the best eSIM for my trip to Thailand?+
A 5 GB plan at $6.99 covers one-week Bangkok city visits; a 10 GB plan at $9.97 handles two-week mixed itineraries including islands. Month-long trips with remote work: 20 GB at $15.99 or 50 GB at $48.00. All plans run on AIS 5G except the 50 GB burst plan, which uses True Move 4G. Both networks cover every major tourist destination including Phuket, Chiang Mai, and Koh Samui.
Can I use my eSIM in Thailand with my current phone?+
Your phone supports eSIM in Thailand if it is an iPhone XS or newer, Pixel 3a or newer, or Galaxy S20 or newer, and it is carrier-unlocked. eSIM support and carrier-lock status are separate, and a phone can have eSIM hardware but still be locked to one carrier. Go to Settings, tap About or About Phone, and look for eSIM or carrier lock status. Contact your carrier if unsure.
Provider reviews
Read our in-depth reviews of the top eSIM providers available in Thailand.
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