Will it work on the islands?
Yes, in the main towns and beaches. Boat trips and remote beaches have gaps.
Prices in US dollars · for US travelers
eSIM for Thailand from the US
Grab, ferries and island hopping need data from the moment you land at Bangkok or Phuket. See what AT&T, Verizon and T-Mobile charge for Thailand, next to a prepaid travel eSIM.
Photo: Johnny Africa on Unsplash
- QR code by emailinstall before you fly
- Keep your numberdata-only eSIM
- 24/7 live chatin the Graba SIM app
- Pay your way
Before you buy: straight answers
Can I use Grab with a data-only eSIM?
Yes. Sign in with your own number before you fly, then book rides over the eSIM’s data.
Is a 15-day plan enough for two weeks?
Only if your last day is inside the 15 days. For 16 nights or more, choose a 30-day plan.
Buying tips for US travelers
- You pay in US dollars, so there is no currency conversion. Your card issuer may still apply its own fees for a merchant outside the US.
- Phones bought on a payment plan are often locked to AT&T, Verizon or T-Mobile until paid off. Check yours is unlocked before you buy.
- Turn off data roaming on your US line before you land. AT&T’s Day Pass and Verizon’s TravelPass charge on each day you use your phone abroad.
- Keep your US line on for texts and two-factor codes; iMessage, WhatsApp and FaceTime work over the eSIM’s data.
What your trip to Thailand costs
Each network’s lowest published option for Thailand, next to the Graba SIM plan with about 0.7 GB a day (regular use) for the whole trip. Network prices use your US plan and include calls and texts; the eSIM is data only.
| Option | Long weekend3 days | A week7 days | Two weeks14 days |
|---|---|---|---|
| Graba SIM eSIM | $7.995GB / 30 days | $7.995GB / 30 days | $12.5010GB / 30 days |
| AT&TInternational Day Pass | $36.00$12.00 a day × 3 | $84.00$12.00 a day × 7 | $168.00$12.00 a day × 14 |
| VerizonTravelPass | $36.00$12.00 a day × 3 | $84.00$12.00 a day × 7 | $168.00$12.00 a day × 14 |
| T-MobileInternational Pass | $30.003 × 1-day passes | $50.0010-day pass | $75.0030-day pass |
Thailand eSIM
How long is your trip?
Pick the trip that sounds most like yours. Every plan is data only, paid once, with no contract.
Prices in USD
Not sure? Answer 3 quick questionsWe’ll show the maths behind our suggestion.
Swipe to compare plans
On every plan here
- Uses TrueMove H and DTAC, with 5G where available
- Starts when you first connect, so you can install it before you fly
- QR code by emailInstall it in minutes
- Keep your numberData only, your SIM stays in
- 24/7 live chatIn the Graba SIM app
- Pay onceNo contract, guest checkout
More options
Other sizes for different kinds of trip.
Only need a day?
A day pass gives you full-speed data for one day, then slower data for the rest of the day.
500MB to 10GB a day
From $2.75
See day passesHow we choose these plans
For each trip we pick the current plan that costs the least while lasting the whole trip and gives about 0.3 to 0.7 GB a day, enough for maps, messages and social media. A plan may last longer than the trip. Everyone uses data differently, so check your phone’s recent data use. “Best value” only appears when that plan also costs the least per GB of all the plans that fit.
Arriving in Thailand
- BKK Bangkok Suvarnabhumi
- DMK Bangkok Don Mueang
- HKT Phuket
- USM Koh Samui
- CNX Chiang Mai
- KBV Krabi
Signal where people go
- Bangkok
- Strong signal across the city and on the BTS and MRT.
- Phuket, Koh Samui and Krabi
- Good in the main towns and beaches; remote beaches have gaps.
- Chiang Mai
- Good in the city; mountain roads are patchier.
Networks our Thailand plans use: TrueMove HDTACAISTrue Move
Your US network in Thailand
What each network publishes for Thailand, with the source and the date we checked.
- AT&T
International Day Pass: your US plan’s talk, text and data. In AT&T’s 210+ Day Pass destinations; additional lines on the account are $6 a day, and you pay at most 10 daily fees per line each bill.
Check with AT&T - Verizon
TravelPass: your plan’s talk and text, plus 5 GB of high-speed data a day. In TravelPass countries; charged only on days you use your phone there.
Check with Verizon - T-Mobile
International Pass: high-speed data (2 GB a day, 15 GB for 10 days or 30 GB for 30 days) and calls. Needs a qualifying T-Mobile postpaid plan.
Check with T-Mobile
Sources: AT&T (checked November 6, 2026) · Verizon (checked November 9, 2026) · T-Mobile (checked November 9, 2026). Prices change; check before you buy.
Graba SIM vs Airalo: the same plans, side by side
Plans with exactly the same data and validity for Thailand, both data-only and priced in USD. Coverage and networks can differ, so check the plan details before you buy.
Highlighted: the lower price for each plan.
Sources: Airalo (checked November 9, 2026). Prices change; check before you buy.
Know before you go
- Ferry and speedboat tickets often arrive as a QR code. Screenshot them before you sail.
- Grab needs mobile data to book and track rides. Sign in before you fly.
Set it up before you fly
- Check your phone is unlocked and supports eSIM on our compatibility page.
- Install the plan at home on Wi-Fi with our iPhone or Android guide.
- When you land, set mobile data to the eSIM and turn on data roaming for it only.
Questions about Thailand
Will it work on the islands?
Yes, in the main towns and beaches. Boat trips and remote beaches have gaps.
Can I use Grab with a data-only eSIM?
Yes. Sign in with your own number before you fly, then book rides over the eSIM’s data.
Is a 15-day plan enough for two weeks?
Only if your last day is inside the 15 days. For 16 nights or more, choose a 30-day plan.
What do US carriers charge in Thailand?
AT&T: International Day Pass: your US plan’s talk, text and data. In AT&T’s 210+ Day Pass destinations; additional lines on the account are $6 a day, and you pay at most 10 daily fees per line each bill. Verizon: TravelPass: your plan’s talk and text, plus 5 GB of high-speed data a day. In TravelPass countries; charged only on days you use your phone there. T-Mobile: International Pass: high-speed data (2 GB a day, 15 GB for 10 days or 30 GB for 30 days) and calls. Needs a qualifying T-Mobile postpaid plan.
What if something goes wrong?
Live chat in the Graba SIM app is open 24/7. Email and contact-form requests are answered Monday to Friday.
More eSIM guides for US travelers
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