Thailand SIM Card in 2025: A Complete Guide for Tourists

Choosing the best SIM card can be a real headache. Where can you find an affordable SIM card in Bangkok, Phuket, or Chiang Mai? Is opting for an eSIM the way to go? Don't panic! This complete and updated guide (November 2024) answers all your questions. From detailed insights into AIS, DTAC, and True Move's offerings to the latest prepaid SIM card rates for 2025, and where to purchase them upon arrival in the country.

Written by Preetika Narula (Local Expert)Updated on 08-11-2024

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1. Do I Need a SIM Card in Thailand?

You're probably wondering if a local SIM card is necessary during your stay in Thailand. It's a common question among travelers, and the answer is a resounding yes—it's indispensable! A Thai SIM card enables you to use your phone for making calls, sending texts, and surfing the internet in 4G, whether it's to hail a taxi, navigate with Google Maps, or discover a local eatery.

Prepaid SIM cards are ideal as they give you complete control over your expenses, with no risk of unexpected charges. Topping up your credit is easy, whether at stores or online.

The 4G network in Thailand is both swift and reliable, boasting an average speed ranging between 8 to 11 Mbps. This ensures seamless internet browsing, email correspondence, and app usage throughout your stay.

Many travelers have encountered unpleasant surprises with their original SIM cards once abroad. By purchasing a local SIM card, you can avoid such hassles and enjoy your stay with peace of mind.

2. Which is the Best Mobile Operator? Thailand is home to three major mobile operators:

• AIS
• DTAC
• TrueMove H

These Thai mobile operators have heavily invested in developing their infrastructure to provide residents, even in remote rural areas, with a reliable network and extensive geographic coverage. Regardless of your choice, SIM card prices remain relatively consistent across the country, ranging between 299 to 899 bahts.

• AIS - Best Network Coverage. The largest and most connected is AIS. Want faster connectivity then opt for the 5G prepaid sim, as the network has 5G coverage almost all over the country.
• TrueMove H - Fastest Internet Speeds TrueMove H, a subsidiary of True Corporation, is renowned for the outstanding performance of its 4G LTE-Advanced network. TrueMove H offers the highest mobile internet speeds in the country, catering to the needs of the most demanding users. Purchasing a sim also gives you access to use local True Move H public wifi hotspots, a big benefit when walking in shopping malls.
• DTAC - Top-notch Customer Service DTAC stands out for its quality customer service and numerous value-added services:
  • Wide range of voice, SMS, and data plans
  • Music and video streaming services
  • User-friendly websites and apps for account management
  • 24/7 customer support available in English

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3. What Types of Tourist SIM Cards Are Available?

Before purchasing a SIM card in Thailand, ensure that your phone is unlocked to receive signals from local operators.

There are two types of SIM cards for tourists:

• Physical SIM Card Available in 4 formats (standard, mini, micro, and nano), it simply installs by cutting the card to fit your phone's size. Prepaid physical SIM cards offer credit for calls, SMS, and internet during your stay, making them convenient for staying connected affordably.
• eSIM The eSIM (virtual SIM) is the latest and most convenient solution for connecting your devices while traveling. Completely digital, the tourist eSIM activates remotely and offers the same features as a physical SIM without handling a physical card. Tourists often opt for a data-only eSIM to manage costs while staying connected via apps during their stay. Be sure to check your device's compatibility before choosing an eSIM.

An eSIM serves as an alternative to traditional SIM cards in Thailand. But is it superior? Indeed, eSIMs offer certain advantages and conveniences for travelers over physical SIM cards.

Below is a concise comparison between Thailand's eSIMs and physical SIM cards.

4. Which Mobile Plan Should I Choose for My Stay?

It's recommended to compare the offers and coverage of each operator before making your decision. If you plan to stay in Thailand for an extended period, it may be advantageous to subscribe to a monthly plan from a mobile operator, which often provides unlimited calls and data at an affordable price.

>>> Also read: What to bring back from Thailand? Complete Guide to Must-Have Souvenirs

4.1 Prepaid TrueMove H SIM Card for Tourists

TrueMove H offers numerous attractive tourist SIM card packages for travelers. These SIM plans also support eSIM and can be easily converted to eSIM. You can request the staff to switch to eSIM when making your purchase at the point of sale. This allows you to enjoy all the benefits of the SIM card on your compatible eSIM phone, while simplifying the activation and configuration process.

Advantages:

• Multiple packages from 8 to 15 days
• Unlimited internet but with slowdown after a certain quota
• Enjoy free messages on social networks (whatsapp, messenger, instagram, viber, skype...).
• Variable call credit included depending on the package

To better understand the offers, consider this example of an 8-day package:

• Price: 299 THB
• Validity period: 8 days
• Data: 15 GB at maximum speed. After 16 GB, the speed is reduced to 384 Kbps. (Messages on Whatsapp and Messenger are always free.)
• Validity extension: By recharging with 10, 20, 50, 90, 150 and 300 bahts, the user will benefit from a validity extension of 30 days.
• Data after 8 days: 1.99 THB/MB

Some additional details about the package:

• The package includes unlimited internet, but the speed will be reduced to 384 Kbps after 15 GB of data usage.
• Free messages are included on social networks such as Whatsapp, Messenger, Instagram, Viber, and Skype.
• The package includes variable call credit depending on the package.
• The validity of the package can be extended by recharging with 10, 20, 50, 90, 150 and 300 bahts.
• After 8 days, the data rate will be 1.99 THB/MB.

True H SIM card website:  https://www.truemoveh-thailandsim.com/

Unlimited data packages are as follows:

• Valid for 8 days: 499 baht
• Valid for 15 days: 699 baht
• Valid for 30 days: 1199 baht

Included benefits:

• Unlimited 5G internet
• 100 THB call credit for international calls
• Unlimited calls to all networks in Thailand
• Unlimited WiFi

WiFi Instructions:

The user can use their TrueMove H mobile number as the username and receive the password via USSD by dialing the code 8714# (free of charge).

In case of forgetting the password, the user can contact TrueMove H at 1242 or dial the code 8714# (free of charge).

To connect to WiFi with TrueMove H, please follow these steps:

• Enter the TrueMove H number and password on the login page of the internet browser.
• Then connect to the WiFi (SSID) ".@TRUEWIFI".
• The system will automatically disconnect if the user is not active online for 10 minutes. Simultaneous WiFi connection is limited to one user at a time.

Are you planning to visit the Land of Smiles? Don't hesitate to contact us and get free quotes!

4.2 Prepaid DTAC SIM card for tourists

DTAC is one of the three major mobile operators in Thailand. Here are the options for obtaining a DTAC SIM card during your stay:

DTAC SIM card without plan

• Cost: 49 baht
• No communications credit included
• Calls and internet charged per usage at standard local rate

Tourist Infinite Package

• 3 durations: 8, 15 or 30 days
• Respective prices: 449 / 699 / 1199 baht
• Unlimited Internet in 5G maximum speed
• Unlimited calls to all Thai networks
• 100 baht free call credit
• 15 baht free credit
• No hidden fees
• Available in eSIM easy to purchase online

Happy Tourist Package

• Free messaging (WhatsApp, Messenger, WeChat)
• Unlimited Internet but restricted beyond a certain use
• 15 baht free credit
• eSIM easy to buy online
• International calls from 1 baht/min

To learn more about purchasing a DTAC SIM card, check outtheir website .

4.3 Prepaid AIS SIM card for tourists

Stay connected throughout your Thai adventure with AIS, a leading mobile network! Here's a breakdown of their tourist SIM card options to find the perfect fit for your trip:

1. Basic SIM Card (49 THB / $1.3):

• Ideal for short stays or occasional use.
• Includes a local phone number and 1GB of data valid for one day.
• Calls are charged per minute at standard local rates.

2. Tourist Packages (399-1699 THB / $11-$46):

• Choose from flexible packages lasting 8, 15, or 30 days to match your trip duration.
• Enjoy bundled data allowance, call minutes (may vary), and SMS.
• eSIM Option: Skip the physical card! Get an eSIM version of these packages at the same price.

Package Breakdown:

• 8-Day Package (399 THB): Cost-effective option for basic connectivity.
• 15-Day Package (599 THB): Great for regular travelers who need more data.
• 30-Day Package (899 THB): Recommended for intensive internet usage.
• 30-Day Unlimited Package (1699 THB): Unlimited for ultimate usage. 

Remember: Packages offer better value compared to the basic SIM card if you plan on making calls, texting, or using data regularly.

>>> Learn more about AIS SIM cards for tourists: https://www.ais.th/en/consumers/package/international/tourist-plan

5. Where to buy my SIM card?

Here is the map of SIM card shops at Suvarnabhumi International Airport. You can easily find them.

5.1 Sites to buy the Truemove H SIM card

Where to buy at the airport: Truemove H SIM cards are available for purchase at most airports in Thailand.

Suvarnabhumi International Airport:

• International Arrivals Hall, Baggage Claim No. 8, No. 11 and 17
• International Arrivals Terminal, 2nd Floor, Exit B: Gate 4, Gate 5
• International Arrivals Terminal, 2nd Floor, Exit C: Gate 9

Don Mueang International Airport:

• International Arrivals Hall, Exit 3
• International Arrivals Hall, Exit 4

Phuket International Airport: International and Domestic Arrivals

Chiang Mai International Airport: International Arrival, Exit 12 and Domestic Terminal Exit 2.

Hat Yai International Airport: International Arrival

Samui International Airport: Arrivals Hall, 1st Floor

Truemove H stores: You can find these stores near BTS and MRT stations:

• BTS Siam Exit 2 - True Shop Digital Gateway
• BTS Siam Exit 5 – True Shop SIAM Paragon 3rd Floor
• BTS Chit Lom Exit 1,2 - True Shop Central World 4th Floor
• BTS Ploen Chit Exit 5 – True Shop Central Embassy 4th Floor
• BTS Asok Exit 1,3 – True Shop Terminal 21 6th Floor
• BTS Phrom Phong Exit 1 – True Shop Emquartier 3rd Floor Building A
• MRT Rama 9 Exit 2 – Central Rama 9

Convenience stores: Many convenience stores throughout Thailand, such as 7-Eleven, FamilyMart, and Tesco Lotus Express, also sell Truemove H SIM cards.

Online: Customers can purchase Truemove H SIM cards via the official Truemove H website or various e-commerce platforms, including Lazada, Shopee, or Amazon.

5.2 Where to buy a DTAC SIM card?

Airport sales points:

• DTAC SIM cards are available for purchase at most airports in Thailand.

Online:

• DTAC official website: https://www.dtac.co.th/en/prepaid/products/tourist-sim.html

Suvarnabhumi International Airport:

• Official store: International Arrival Terminal, Exit Gate 7

Other points of sale:

• Shopping malls
• Convenience stores (7-Eleven, Family Mart)
• DTAC vending machines

Tips:

• Compare the different packages available before buying your SIM card.
• Make sure you have your passport with you when purchasing your SIM card.
• You can recharge your SIM card online, in convenience stores or at DTAC vending machines.

Don Mueang International Airport:

• Official store: International Arrival Hall, between exits #3 and #5
• International Arrivals Hall, opposite exit 6

Phuket International Airport:

• Official store: dtac Official Counter International Arrival Terminal Branch Exit No. 1-2

• dtac Official Counter at Baggage Claim No. 2

• Partner store: dtac Partner Counter at Baggage Claim No. 6

DTAC stores: DTAC has over 7,000 retail stores and service centers across Thailand, where customers can buy DTAC SIM cards and other mobile services.

Convenience stores: DTAC SIM cards are available at most convenience stores in Thailand, such as 7-Eleven, Family Mart, and Tesco Lotus Express.

Online: Customers can buy DTAC SIM cards via the DTAC website or third-party e-commerce platforms, such as Lazada, Shopee, Amazon, or online travel agencies like Klook.

5.3 Where to buy an AIS SIM card?

At the airport: AIS SIM cards are available at many international airports throughout Thailand, including Bangkok Suvarnabhumi Airport and Don Muang Airport.

In convenience stores: You can purchase AIS SIM cards at 7-Eleven, Lotus Express and Tops, and other convenience stores located throughout Thailand. Look for the AIS logo or ask for assistance from store staff.

Online: For those preferring an online solution, AIS eSIM can be purchased via the AIS online store or by visiting an AIS store in person. You can follow these steps to purchase an AIS eSIM online:

Visit https://www.ais.th/esim-traveller/ Select "eSIM plans" from the top menu bar. Choose your preferred eSIM plan and click "Buy now." Fill in the required information, including your name, phone number, and email address. Select your payment method and complete the transaction. Once the transaction is complete, AIS will send you an email with instructions on how to activate your eSIM.

At mobile phone stores: You can also visit an AIS store to purchase an eSIM or SIM card. To find the nearest AIS store, visit the AIS website at https://www.ais.th/servicecenter/ and enter your location. This will allow you to enjoy the convenience of AIS eSIM during your trip to Thailand.

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6. What should you know before buying a SIM card?

Before subscribing to a SIM card, compare the offers of the operators according to your communication needs during your stay. Check the prices, the amount of internet data, and the validity conditions in order to choose the most suitable solution.

What documents are required?

• In store: original passport + copy of the identity page
• Online: photos of your passport
• Some operators also ask for a local address (hotel for example).

How many SIM cards can I buy?

You can buy as many SIM cards as you want in Thailand, there is no limit.

How to check my SIM card balance?

• Remaining credit: *123#
• Remaining data: *900#
• Phone number: *833#
• Change language: *9304

Where to top up my credit?

• In convenience stores, 7/11 is the best place
• Official store or shop
• Online top-up via app's of each carrier:
  • True: True Iservice
  • Dtac: Dtac app
  • AIS: my AIS

Will a Thai SIM card work overseas?

Your home country provider may offer an international package that works in both countries with your current SIM, though it might be expensive. Alternatively, you can buy a Thai SIM at the airport in Thailand and a Vietnam SIM at the airport in Vietnam.

Is there any unlimited Thailand SIM cards?

Yes, many network carriers provide unlimited Thailand SIM card plans for tourists. However, be aware that some of these plans offer only a certain amount of high-speed data before the speed is reduced.

Is it cheaper to use eSIM in Thailand compared to a Thailand SIM card?

The cost varies based on the plan and carrier you select. Some eSIM plans may be more affordable than traditional SIM cards, but it’s advisable to compare the available options to find the one that best meets your needs.

Our last words

In conclusion, opting for a SIM card in Thailand for your mobile phone is an excellent idea when you visit the Land of Smiles for a few days. Fortunately, buying a SIM card is easy and inexpensive, allowing you to make calls, send SMS and use the internet without having to pay expensive roaming charges. We hope that this article has been useful to you and that you will enjoy a pleasant and well-connected discovery of Thailand.

I hope this is helpful! Let me know if you have any other questions.

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