Travelmaxxing

Buyer’s guide · checked 4 Nov 2026

The Best eSIM for Thailand, Picked for Your Trip

Short answer: for most Thailand trips, NUM’s pick is 5 GB, valid 30 days for $5.59 on AIS, DTAC, TrueMove H. Shop prices on 4 Nov 2026. We sell these eSIMs, so every other brand’s price below links to its source.

Traveler using a Thailand eSIM on a Bangkok rooftop at dusk
Thailand eSIM: Bangkok at dusk

The best eSIM for Thailand, trip by trip

Best for most trips

$5.59

5 GB, valid 30 days · about $1.12 a GB
Networks: AIS, DTAC, TrueMove H
Two weeks of maps, rides, social and photos.

Get this plan

Best for a short trip

$4.29

3 GB, valid 15 days · about $1.43 a GB
Networks: AIS, DTAC, TrueMove H
A week or a long weekend.

Get this plan

Best for a month

$7.69

10 GB, valid 30 days · about $0.77 a GB
Networks: AIS, DTAC, TrueMove H
Long stays, remote work and hotspot.

Get this plan

Best value per GB

$10.29

50 GB, valid 10 days · about $0.21 a GB
Networks: True Move
The most data for the money in this list.

Get this plan

Best for crossing borders

$34.19

20 GB, valid 90 days · about $1.71 a GB
Regional plan, 20 countries
One eSIM for 20 countries.

Get this plan

NUM’s shop on 4 Nov 2026, in US dollars. The price on the pay button is the price you pay.

Every Thailand plan by price per GB

Thailand eSIM price per GBPrice per GB for each Thailand plan: 1 GB for 7 days, $2.19, about $2.19 a GB; 2 GB for 15 days, $2.99, about $1.50 a GB; 3 GB for 15 days, $4.29, about $1.43 a GB; 3 GB for 30 days, $4.49, about $1.50 a GB; 5 GB for 30 days, $5.59, about $1.12 a GB; 10 GB for 30 days, $7.69, about $0.77 a GB; 20 GB for 30 days, $11.09, about $0.55 a GB; 50 GB for 10 days, $10.29, about $0.21 a GB.1 GB · 7 days$2.19/GB2 GB · 15 days$1.50/GB3 GB · 15 days$1.43/GB3 GB · 30 days$1.50/GB5 GB · 30 days$1.12/GB10 GB · 30 days$0.77/GB20 GB · 30 days$0.55/GB50 GB · 10 days$0.21/GB
Shorter bar, less money per GB. The highlighted plan costs the least per GB in this list.

Thailand eSIM prices next to Saily and Airalo

NUMSailyAiralo

Thailand eSIM prices, NUM and other brandsThailand prices: 1 GB for 7 days: NUM $2.19, Saily $2.99; 3 GB for 30 days: NUM $4.49, Saily $5.99; 5 GB for 30 days: NUM $5.59, Saily $7.99, Airalo $8.00; 10 GB for 30 days: NUM $7.69, Saily $10.99, Airalo $11.00; 20 GB for 30 days: NUM $11.09, Saily $19.99, Airalo $18.00.1 GB7 daysNUM $2.19Saily $2.993 GB30 daysNUM $4.49Saily $5.995 GB30 daysNUM $5.59Saily $7.99Airalo $8.0010 GB30 daysNUM $7.69Saily $10.99Airalo $11.0020 GB30 daysNUM $11.09Saily $19.99Airalo $18.00
PlanNUMSailyAiralo
1 GB · 7 days$2.19$2.99—
3 GB · 30 days$4.49$5.99—
5 GB · 30 days$5.59$7.99$8.00
10 GB · 30 days$7.69$10.99$11.00
20 GB · 30 days$11.09$19.99$18.00

NUM’s price is the shop’s on 4 Nov 2026. Other brands’ prices as published by travelsimasia.com (checked 1 Aug 2026), esimdb.com (checked 1 Oct 2026), cloudwards.net (checked 1 Oct 2026). Prices change; each shop shows today’s.

eSIM, roaming or a local SIM in Thailand?

OptionTwo weeksSetupPhone number
NUM eSIM$5.59
5 GB		Install at home on wifi, online when you landData only; your home number stays on
Verizon TravelPass$168.00Nothing to installYour own number
AT&T International Day Pass$120.00Nothing to installYour own number
Local SIM cardSet by local shopsBought after you land; many countries register SIMs to your passportA local number

Roaming per line for 14 days, as each carrier publishes it: Verizon (checked 5 Nov 2026), AT&T (checked 5 Nov 2026). NUM: the shop’s price on 4 Nov 2026.

How we picked

Networks in Thailand

Coverage in Thailand: what to know

In Opensignal's June 2025 report AIS was the most awarded Thai operator, ahead of DTAC and TrueMove H. Tourist strips on Samui, Phuket and Koh Tao have usable 4G, but small islands, mountain roads and ferry crossings can lose signal. SIM registration applies to tourists.

Checked 3 Nov 2026. Source: insights.opensignal.com. Coverage changes, so check your route before you rely on it.

Best eSIM for Thailand: questions

What is the best eSIM for Thailand?

For most trips, NUM’s 5 GB, valid 30 days plan at $5.59 (shop price on 4 Nov 2026), on AIS, DTAC, TrueMove H. The best one is the plan that covers your days and data on a strong local network. NUM sells eSIMs, so other brands’ prices on this page are linked to their sources.

What is the best eSIM for a week in Thailand?

3 GB, valid 15 days for $4.29 on 4 Nov 2026: enough for maps, rides, messages and photos.

What is the best eSIM for 2 weeks in Thailand?

5 GB, valid 30 days for $5.59 on 4 Nov 2026, room for social, photos and a few video calls.

Is there an unlimited eSIM for Thailand?

Not on 4 Nov 2026. Plans for Thailand have a set amount of data, and you can add more to the same eSIM if you run low.

Which network is best in Thailand?

In Opensignal's June 2025 report AIS was the most awarded Thai operator, ahead of DTAC and TrueMove H. Tourist strips on Samui, Phuket and Koh Tao have usable 4G, but small islands, mountain roads and ferry crossings can lose signal. SIM registration applies to tourists.

What is the best eSIM for Thailand and nearby countries?

A regional plan: 20 GB, valid 90 days covering 20 countries for $34.19 on 4 Nov 2026. Check that its list includes every country on your route.

Is an eSIM better than roaming in Thailand?

For data, usually. Two weeks on Verizon TravelPass is $168.00 a line (Verizon, checked 5 Nov 2026); NUM’s two-week pick was $5.59 on 4 Nov 2026. Keep your home line for calls.

Will it work on my phone?

Dial *#06# on the phone you’re taking. If you see an EID number, it takes an eSIM. Every iPhone from the XR and XS on does, and the SE from 2020, as do Google Pixel 3 and later and Samsung Galaxy S20 and later. The phone must be carrier-unlocked. Not sure? Text PHONE and your model and we’ll check.

Does it come with a phone number?

No. It’s a data-only eSIM. WhatsApp, LINE, iMessage and FaceTime all work over it, and your home number can stay on for calls and codes.

More for your Thailand trip