Buying Bangkok SIM Cards and eSIM: A Traveler’s Guide

Planning a 2025 trip to Bangkok? Staying online is easier—and often cheaper—than ever. Below is an updated guide showing what’s new, what to skip, and how to grab the best-value SIM or eSIM for your Thai adventure.

Let’s see why we have these facts and tips in the following parts!

In terms of forms, there are 02 types of Bangkok SIM cards types, which are:

• SIM card
• eSIM

Here is the details:

I. Bangkok SIM Cards for Tourists

If you choose tourist SIM cards as the means of connecting in Bangkok, there will be many options for you to choose for your Bangkok trip.

1. Types of Thailand SIM cards for tourists in Bangkok

There are several types of Bangkok SIM available for purchase, including:

• Prepaid local SIM card: This type of SIM card is intended for use by residents of Thailand and offers affordable voice and data plans with local carriers such as AIS and True Corporation (the merged entity of TrueMove H and dtac). This option is better for those staying in Bangkok for a long time.
• Prepaid tourist SIM card: This type of SIM card is designed for visitors to Bangkok, as well as Thailand, and typically includes unlimited data usage, free international calls, and other features tailored to the needs of tourists.
• Data-only SIM card: This type of SIM card is intended for use in devices such as mobile hotspots or tablets, which do not require voice or messaging capabilities. It’s also a good option for travelers who stay in Bangkok for short time.

2. What do You Need to Prepare to Buy a Tourist SIM Card in Bangkok?

As a tourist, you need to prepare the following things:

• A carrier-unlocked, 5G-ready phone
• Passport for in-store registration (not required for most eSIMs)
• THB cash or card; airport counters now accept Visa/MasterCard

3. Tourist SIM Card Prices in Bangkok

Updated 2025 pricing for tourist SIM cards in Bangkok ranges from $8.90 to $35, with AIS offering 15GB plans starting at 299 THB ($8.90) for 8 days, while True Corporation provides unlimited data plans from 449 THB ($13) for 8 days to 1,199 THB ($35) for 30 days. Check out the detailed Thailand SIM card guides.

Network (Brand)	Plan	Data / Speed	Validity	Price	Extras
TRUE-dtac “Happy Tourist Infinite”	349 THB	Unlimited 5G	8 days	≈ US$9.90	100 min local + 30 min int’l, free Wi-Fi
TRUE-dtac	699 THB	Unlimited 5G	15 days	US$19	Travel-insurance privilege up to 30 days
TRUE-dtac (eSIM)	299 THB	15 GB @ 5G	8 days	US$8	Instant email delivery
AIS Tourist SIM	299 THB	15 GB @ 5G	8 days	US$8.50	Unlimited social apps
AIS Super Tourist	699 THB	30 GB	15 days	US$18	Free 30 min calls to India (promo)
AIS FREE	0 THB	3 GB starter	24 hrs	Free via TAGTHAi app	Pick-up at KBank FX booths

4. Which SIM Card is the Best in Bangkok?

There are now 2 major mobile network operators in Thailand following the 2023 merger: True Corporation (combining dtac and TrueMove H) and AIS.

According to the latest Opensignal report from 2025, AIS dominates overall performance, winning awards in 5G experience, download speed, video experience, consistent quality, and coverage. True Corporation (the merged entity) holds the top spot for 5G availability, meaning you’re more likely to find a 5G signal with them.

Updated March 2025: The merger between dtac and TrueMove H was completed in March 2023, creating True Corporation as the largest mobile operator in Thailand with over 51 million subscribers, surpassing AIS which has 44 million subscribers. The two companies now command nearly 95% of Thailand’s mobile market.

II. eSIM for Tourists in Bangkok

Besides SIM card, you can also choose tourist eSIM to stay connected in Bangkok.

1. What is Bangkok eSIM?

It’s not a new term, eSIM is a digital SIM embedded in a mobile device. For tourists to Bangkok, eSIM can be a convenient option. 

Some mobile network carriers in Thailand offer eSIM services for tourists, allowing you to make calls, texts and access to the Internet during your vacation. 

In addition to Thailand mobile operators like AIS and True Corporation, thailandesim.com stands out as a leading eSIM provider offering comprehensive tourist eSIM solutions for Bangkok visitors, with competitive pricing starting from $9.90 and excellent customer support. They will have more options on data and validity, as well as the more accessible customer support.

2. Types and Features of Bangkok eSIM

In terms of function, Thailand eSIM is divided into 2 types:

• Data-only eSIM plans
• Voice, text and data eSIM (for both analog calls, SMS and internet access)

eSIM brings more convenience for foreign tourists visiting Bangkok like:

• Online purchase, no need for ID documents
• Easy to use, no need to remove your local SIM card
• More various options for data and validity
• Multi-countries plans are available
• Reasonable prices
• Accessible and multi-language customer support

III. Where to Buy Thailand SIM Card and eSIM for Bangkok as a Tourist?

As a tourist, you can find it easy to buy a SIM card or eSIM plan in Bangkok, consisting of:

• Buying online
• Buying upon arrival
• Buying in the city

Here are 3 popular ways to find Thailand SIM in Bangkok:

1. Buy Thailand SIM Card or eSIM Online in Bangkok

For the online method, you can buy a Thailand SIM plan anywhere including Bangkok.

For SIM cards: You can register on the mobile operators’ websites (Check out the websites of AIS and True Corporation, as the former dtac and TrueMove H brands are now unified under True Corporation following their 2023 merger). However, you can register online but you need to submit some documents and wait for shipping or receive the SIM card at the pickup locations of the mobile operators in Bangkok. Besides, many marketplaces like Shopee, Lazada, sell Thailand SIM cards.

For eSIM: It’s much easier. You can purchase online without submitting any documents. Then, you can receive the eSIM via email or app.

Refer to some Thailand eSIM plans from thailandesim.com:

Steps to buy eSIM for Bangkok travel with the guidelines below:

1. Head to thailandesim.com
2. Choose eSIM Bangkok, then pick your data and validity and make online payment
3. Receive eSIM information and installation guide in your email
4. Set up the eSIM before departure and be prepared to activate it after landing in Bangkok
5. Enjoy internet connection right after landing

2. Buy Thailand SIM Card at the Airport before Go to Bangkok

Alternatively, you can also purchase a SIM card at the airport. Either at Suvarnabhumi Airport (BKK) or Don Muang Airport (DMK), it takes about 10 minutes to get the SIM card. But there is always a queue of people and prices are sometimes slightly higher.

After landing, just exit the baggage claim area. There are phone shops, convenience stores, and counters operated by Thai mobile operators such as AIS and True Corporation (which now operates both former dtac and TrueMove H services) on the airport arrivals floor. It is a good idea to research these companies’ websites to learn more about their package and rates before arriving in Thailand so you can make an informed decision.

Here are 4 steps to buy tourist SIM cards at Bangkok airports (and tips from experienced travelers):

• Step 1: After clearing customs, look for the signs directing you to the kiosks or stores of the mobile network provider in the arrival hall of Suvarnabhumi Airport or Don Muang Airport. 
  • For Bangkok Suvarnabhumi Airport: The arrival hall is on Floor 2, where sim card stores, money exchange, and ATM machines are located. You’ll find AIS stores at Exit 7 and 9, and True Corporation stores at Exit 4, 5, 6, and 10.
  • For Don Muang Airport: The kiosks selling SIM cards are often at Terminal 1 and 2. True Corporation has 3 stores at Exit 3, 4, and 6 in the international arrivals hall, while AIS has one booth in the international arrivals area.

• Step 2: Choose the SIM card package you want. Choose slowly and compare the detail and rates of each package with each other.

• Step 3: Buy the plan you want. You need to show your passport, and the staff there will take photos of you and your passport for record and require you to fill in some basic personal info, including your name and contact details.

• Step 4: Pay for the SIM card or any additional services. The staff will activate the SIM card and set up your phone so you can use it instantly. Do not to forget ask the staff about the plan (data usage restrictions, international calling rates, and expiry dates)

► Depending on which airport in Bangkok you land at, see our guide to buy SIM card / eSIM at Suvarnabhumi airport (BKK) and Don Mueang airport (DMK).

3. Buy SIM Card in Mobile Carriers’ Stores and Others Street Vendors in Bangkok

You can buy a SIM card at mobile carriers’ stores in Bangkok like AIS and True Corporation, which are found throughout Bangkok and often have English-speaking staff available.

► Mobile carriers’ stores: The 2 major mobile network providers in Thailand (AIS and True Corporation) have multiple stores and kiosks throughout Bangkok where you can buy a tourist SIM card. You also need to show your passport to the staff.

Location of their stores are located in major shopping malls and tourist attractions: 

• AIS: A list of locations on their website at https://www.ais.th/servicecenter/
• dtac (True Corporation): A list of locations on their website at https://store.dtac.co.th/en/services/store-locations
• TRUE (True Corporation): A list of locations on their website at https://iservice.true.th/

► Other stores: There are also other stores in Bangkok where you can find a Thailand SIM card for tourists, be it convenience stores, electronic stores, and even street vendors. However, the selection of plans and services of such stores may be more limited. Some popular locations are:

• 7-Eleven: a popular convenience store chain in Bangkok which can be found throughout the city. They are open 24 hours a day, and you can buy prepaid SIM cards with the cashier’s assistance. Currently, 7-Eleven stores primarily sell True Corporation tourist SIM cards (from the former TrueMove H brand) and some AIS packages.

• MBK Center: MBK Center is a large shopping mall in Bangkok that’s popular with tourists. You can find many electronics stores on the fourth floor that sell SIM cards for tourists. The mall has been revamped with over 250 leading tech brands and retailers, including official TRUE Shop and AIS Shop locations where you can purchase SIM cards, pay bills, or switch plans. The prices and plans may vary, so it’s a good idea to compare before purchasing.
• Khao San Road: Khao San Road is a famous backpacker district in Bangkok, and you can find official AIS shops nearby (such as the AIS Telewiz shop on Sap Sam Hang, along from the Post Office) as well as some street vendors selling SIM cards for tourists. While the prices are generally standardized, be cautious of counterfeit or expired SIM cards.

► In case you are going to travel other destinations in Thailand, read on more useful guides to buying SIM cards in Thailand.

IV. Must-know Tips for Tourists to Stay Online in Bangkok

With Bangkok welcoming over 18 million international tourists in the first seven months of 2025 alone, maintaining good connectivity has become essential for navigation, communication, and accessing services throughout the city. You will need a good connection to access almost all services in Bangkok. Here are some useful tips for you.

1. Get a Local SIM Card

One of the most convenient ways to stay connected is to get a local SIM card. The main providers in Bangkok are now AIS and True Corporation (which merged dtac and TrueMove H operations in 2023). These providers offer various data plans to suit your needs, from daily to monthly packages.

2. Public Wi-Fi

If you don’t want to purchase a SIM card, many hotels and cafés in Bangkok offer free Wi-Fi. However, the quality and speed of these connections can vary. Public spaces, such as shopping malls and transportation hubs, may also have free Wi-Fi, but be cautious about using public networks, as they can be less secure.

3. Portable Wi-Fi Devices

For uninterrupted internet access, consider renting or purchasing a portable Wi-Fi device. These devices can provide coverage in areas with limited Wi-Fi, allowing you to stay connected on the go.

4. Data Roaming

While data roaming can be convenient, it’s often expensive. Check with your home network provider to determine the costs associated with data roaming in Thailand. To avoid hefty bills, it’s generally recommended to use local SIM cards or Wi-Fi.

5. Online Services for Tourists in Bangkok

Bangkok has a wide range of online services available for tourists, including ride-hailing apps like Grab, food delivery apps, and online booking platforms.

Ride-hailing apps like Grab are widely used in Bangkok, can be downloaded for free and available in multiple languages, making them easily accessible to tourists who may not speak Thai. Grab Thailand announced its 2025 business direction with a focus on sustainability and market expansion, maintaining its position as the No.1 ride-hailing platform with 138% growth in tourist rides.

Food delivery apps like GrabFood, LINE MAN, and Robinhood are popular in Thailand’s capital, with GrabFood and LINE MAN leading the market in 2025. Note that Foodpanda ceased its Thai operations on May 23, 2025, providing tourists with easy access to different local and international cuisine without leaving their hotels or accommodations.

Online booking platforms for tours and attractions such as Klook and GetYourGuide are also popular in Bangkok, allowing travelers to easily book and pay for a wide range of activities, from city tours to temple visits to cooking classes. These platforms have options for different budgets and interests, and can be accessed from anywhere with an internet connection.

Read more: Use Cell Phone in Thailand

V. FAQs on Getting SIM Cards in Bangkok

VI. Conclusion

In conclusion, purchasing a local SIM card is a highly recommended option for tourists visiting Bangkok. It offers the convenience of staying connected throughout your trip, ensuring you can easily access the internet, use navigation apps, and communicate with friends and family. By choosing a suitable data plan and following the tips provided, you can enjoy a seamless online experience and make the most of your time in this vibrant city.

For the most convenient and cost-effective solution, consider purchasing an eSIM from thailandesim.com before your trip, offering instant activation, competitive pricing, and excellent customer support to ensure you stay connected from the moment you land in Bangkok.