Thailand eSIM
Prepaid Thailand travel data from $1.99 USD (500 MB, 1 day). No physical SIM and no contract: you get a QR code by email and install it from your phone's settings. Check your phone
Choose your package
How many days?
Count arrival and departure days.How much data?
Plan details · 5 GB, 7 days
- Coverage
- Single country
- Plan type
- Data only
- Activation
- On network connection
- Hotspot
- Supported
- Top-up
- Not available
Need a particular mobile operator? before you buy.
Full plan terms, coverage & refunds
Data-only eSIM
Validity starts at the first network connection.
Top-ups unavailable. Usage tracking supported. Hotspot supported.
Calls and SMS are not included. Internet calling apps use your data.
Coverage (1 country)
Thailand
Mobile networks: AIS
Refund eligibility depends on the plan and its activation status. Contact Wanderly support before installing or using the eSIM.
Listed network types describe plan support; 4G/5G availability and speeds vary by location and device. Country coverage does not guarantee a signal throughout your route. If you need a specific network or location, confirm it with support before buying.
Refunds: who is eligible and how to request one are set out in our refund policy.
Free eSIM in Thailand — free data for first-time users, claimed in the Wanderly app.
Thailand eSIM plans at a glance
Wanderly lists 41 fixed-data Thailand plans, ranging from 500MB up to 50GB over 1 to 180 days. Prices start at $1.99, and the lowest cost per gigabyte is $0.40/GB on the 50GB 3-day plan.
Unlimited day-passes are also available from $2.99 per day, billed per day rather than per gigabyte. 10 of the 46 Thailand data-only plans can be topped up without reinstalling the eSIM.
Calls and SMS depend on the selected plan. Install using the supplied QR code and keep your home number on its own line. Activation timing varies by plan; check your selected plan's terms before purchasing or installing.
How much does a Thailand eSIM cost?
A Thailand eSIM from Wanderly costs $2.99 for 1GB (7 days), $4.99 for 5GB (5 days) and $9.99 for 20GB (5 days), as a one-off price with no subscription. Larger plans cost less per gigabyte: $2.99/GB at 1GB against $0.50/GB at 20GB.
In the November 1, 2026 edition of the Wanderly eSIM Price Index, Thailand's data-only plans have a median of $0.70 per GB, below the $1.41 median across 181 destinations. 11 of those destinations have a lower median.
Cheapest plan that lasts your trip
| Trip | Plan | Price |
|---|---|---|
| Long weekend (1GB or more) | 1GB, 7 days | $2.99 |
| One week (3GB or more) | 3GB, 7 days | $3.99 |
| Two weeks (5GB or more) | 5GB, 15 days | $4.99 |
| One month (10GB or more) | 10GB, 30 days | $7.99 |
The data amounts are a starting point. Estimate how much you will use.
Cheapest plan by data size
| Data | Validity | Price | Per GB |
|---|---|---|---|
| 1GB | 7 days | $2.99 | $2.99 |
| 3GB | 3 days | $2.99 | $1.00 |
| 5GB | 5 days | $4.99 | $1.00 |
| 10GB | 5 days | $5.99 | $0.60 |
| 20GB | 5 days | $9.99 | $0.50 |
Cheapest current data-only plan at each size, as charged at checkout. Prices checked November 6, 2026, from the live catalogue. Compare Thailand with every country in the eSIM Price Index.
🇹🇭 About eSIMs in Thailand
Thailand's main operators are AIS and True, which merged with dtac in 2023. Expect strong 4G and expanding 5G in the places most travelers go, including Bangkok, Chiang Mai, Phuket, Koh Samui and Krabi, with weaker signal on the mountain roads around Pai. Some current plans list AIS, others list dtac and a few list both, so check the plan details. Signal can thin on longtail boats around Phi Phi and in the Chiang Mai hills.
Data burns fast in Thailand because you are Grab-ing everywhere, translating menus, and posting sunsets. A 7-day, 10 GB plan is comfortable for a first-timer; two-week island hoppers usually want 15–20 GB. Unlimited plans are worth it if you rely on Google Meet, Zoom or Netflix in the evenings.
The SIM booths at Suvarnabhumi and Don Mueang work fine but are marked up. An eSIM set up according to your plan's start rule lets you skip the queue entirely.
How to activate your eSIM in Thailand
- 1Time the installationCheck the selected plan's start rule. If it starts on its first network connection and allows installation before travel, install it over reliable Wi-Fi before you fly; if it starts at installation, install it when you need it.
- 2Turn on after landingEnable the Thailand eSIM as your primary data line, keep your home SIM for iMessage. Turn on Data Roaming (required for eSIMs).
- 3Grab and LineInstall the Grab app for taxis and Line for restaurant bookings and guesthouses — both need data to sign up.
- 4Hotspot for travel buddiesWanderly Thailand plans allow tethering, so your partner or a group of friends can share one plan on longer trips.
Thailand eSIM FAQ
Does it work on Thai islands?
Yes, on the main islands: Koh Samui, Phuket, Koh Phangan, Koh Tao, Koh Lanta and Krabi generally have 4G coverage in the populated areas, depending on the network your plan lists. Expect signal to drop on smaller islands and between them.
How much data do I need for 2 weeks in Thailand?
15 GB covers navigation, Grab, WhatsApp and social. Go 20 GB or unlimited if you stream video on beach nights or work remotely.
Can I use Grab and Line?
Yes. Both work over mobile data on Wanderly Thailand plans. Grab in particular saves you from taxi meter arguments.
Does it work in Pai and rural north?
In towns and along much of the main road, yes. Expect signal to drop on the mountain switchbacks between Chiang Mai and Pai and on parts of the Mae Hong Son loop, so save maps offline before you ride.
Is hotspot supported?
Hotspot terms vary by plan, so check the plan details for permission and any separate limit before relying on it.
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