Almost every tourist that travels to Thailand wants to buy a Thai SIM card, but which one? If you did not gather some information before your trip you are relying on the sales guys at the airport. Can you trust them? Nope! So here is your guide to what is the best Thai SIM card for travellers in 2020.

Related: 68 funny & interested facts about Thailand.

Buy your Thailand sim card online in 2020

Forget the hassle buying a sim card for Thailand on arrival. No more waiting and line and misunderstandings, get your Thai sim card online and let it be shipped to your home address. For some countries even free shipping!

3 Best sim cards for Thailand to order online

1. AIS Smart Tropic S - 3 GB data

Price: $20

  • 3 GB data
  • 100 THB credit for calling
  • 100 THB credit for texting
  • Valid 8 days

2. China Unicom smart traveler X - 6 GB data

Price: $23

  • 6 GB data
  • Valid 12 days

3. AIS Smart Tropic - 30 GB data

Price: $25

  • 30 GB data
  • 15 THB credit for calling
  • 15 THB credit for texting
  • Valid 15 days

Why buy a Thailand tourist SIM?

Traveling in Thailand is fairly easy nowadays with so many travel agencies, long haul busses and cheap domestic flights in Thailand. A place to sleep can easily be found, good food is always around the corner and transportation can be booked in every street. Then why do you need a Thai SIM card?

First of all to simply be online. I am an internet addicted and I should be, as a professional travel blogger I constantly want to be online. For me it is not just a way of keeping in touch with my family and friends it is work as well. So a travel sim is vital! Want to know my tips & tricks about how to get temporary internet access while traveling? Check the link for great tips about having internet abroad.

Buying a sim card in Thailand is fairly easy, finding the best data package available is a challenge. At least it is way easier then buying a sim card in Vietnam or in Indonesia where they even try to sell you competitors packages in official stores. A nightmare! LOL

But even if you are not an internet addict it is handy to have a Thai SIM card. Think about emergency situations, meeting up with fellow travellers or using Google Maps to find directions. It makes travelling so much easier and it is really affordable! You can buy your Thailand sim card online, click here to get them shipped to your home address.

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What is the best Thailand prepaid SIM card for tourist in 2020?

Are you planning to go to remote islands in Thailand or are you going visit the islands on The Banana Pancake Trail? Do you want a 4G internet connection? Different types of travellers and different types of SIM cards, find out which one suites you most.

Mobile internet providers Thailand

There are 3 major suppliers in Thailand: True, DTAC and AIS. All of them have pros and cons, but their signal and 3G coverage is nowadays everywhere the same. So if you are going to the major touristy spots and you are not interested in 4G internet speed then simply choose the cheapest option of one of these 3 mobile companies. You will see signs everywhere saying: 'Thailand SIM card for tourist'.

For travelling up north to places like Chiang Mai it only depends if you want to be connected to 4G or not. All providers have reliable coverage, though only True Move and AIS have a big 4G network in the remote areas, DTAC does not! So if you are going to travel on a motorbike in Thailand True Move or AIS might be a good option for you.

If you are you planning to go on a Thailand Island hopping adventure and still want to be connected to the world then do not choose AIS I would have told you back in 2016. Now in 2020 things have changed and AIS has a really good 4G coverage network nowadays. Their coverage on remote islands was shit, but got incredibly better.

If you are looking for a Thailand SIM card for island hopping in the South of Thailand, based on coverage all three networks will give you a 4G signal on almost every popular tourist destination. I also wrote a guide to the best sim card in Greece as with all those islands there it is pretty similar to Thailand. Every island has different network coverage.

Mobile Internet Speed Thailand

For the fastest internet you should get a SIM card of AIS, as their speed is by far the best, see the chart down below. Staying in places like Phuket, Samui, Chiang Mai and Bangkok, AIS is definitely the best Thailand prepaid sim card for tourist when it comes down to Internet speed.

best thai SIM card4

4G Coverage mobile providers Thailand in 2020

If you are just like me addicted to the internet and 3G is not good enough anymore than check out the following 4G coverage maps of all three mobile internet providers in Thailand. Who provides the best 4G coverage in Thailand in 2020? The maps below are update in December 2019 to give you the most accurate information about the best sim card for tourists in Thailand. (source

4G coverage of AIS

4g coverage map ais thailand 2020

4G coverage of True Move

4g coverage map true move thailand 2020

4G coverage of DTAC

4g coverage map dtac thailand 2020

All the above maps are updated in December 2019 and show you the actual coverage for 2020!

As you can see based on the 4G coverage maps of the internet providers in Thailand, AIS is still your best bid as it covers most of Thailand with 4G, with True Move being a good follow up. DTAC still has to do some catching up, but that only counts for the remote areas. All three internet providers have very good coverage in most tourist destinations in Thailand.

Prices for prepaid sim card packages in Thailand in 2020

As you can imagine there are 100 different data packages available, so I picked out the ones for you that I think are the best for tourists.


DTAC Happy Tourist 599 THB (excl. VAT) = Unlimited internet for 15 days, 6GB at MAX speed, 100 THB call credit.

If you buy a DTAC sim card and top up yourself you can use the following packages:

  • 30 days - 4.5GB - 430 THB
  • 30 days - 9.0GB - 750 THB


AIS Traveller SIM 599 THB (excl VAT) = Unlimited internet for 15 days, 6GB at MAX speed, 100 THB call credit.

The package for AIS is pretty much the same as the one of DTAC

True Move

A True Move prepaid sim card can be a cool option for those who only use apps. With a True Move SIM card you can use 14 social apps for 30 days FOR FREE! Apps included are: Instagram, Facebook, Snapchat, Line, Twitter, Facebook Messenger, Viber, Skype, Pinterest. Additional internet cost 2 THB per MB and 0,55 THB per calling minute.

In December 2019 these were the Thailand sim cards they sell at the official True Move shop.

true move sim card thailand march 2019

Finding the best prepaid Thailand sim card based on the available packages is like walking through the jungle without a machete. It basically is undoable to find the right package and therefore I kind of like the DTAC package where you simple buy a SIM card and a data package! :)

Thailand SIM card for tourist 

Heading to a specific area then go to and zoom in on your destination to find the best provider. Especially for long term travellers this tool is perfect to see what is the best thai sim card for nomads. The perfect example is myself when I was living in Koh Tao in 2016. I know I was going to stay in Koh Tao for at least 2 months, so I zoomed in. At that time the fastest internet was provided by AIS, True Move had the biggest 4G network, but in the end I chose DTAC. Why? DTAC was the only mobile internet provider offering a 4G signal in Koh Tao and to me the best thailand prepaid sim card was therefore DTAC.

What to bring if you buy a sim card in Thailand in 2020?

Before you could easily buy a sim card in Thailand without any identification, but nowadays they changed a couple rules. If you purchase a sim card in Thailand a passport is needed. Still street vendors sell prepaid data packages without any identification needed, but the official resellers will need your passport. So always bring your passport when you are going to buy a sim card in Thailand.

I did my PADI divemaster training on Koh Tao and lived there for several months. Looking for cool things to do in Koh Tao? Check out my blog: Things to do in Koh Tao Besides Diving. Heard bad stories about Koh Tao in the news? We all did! Read here about my experiences as the famous Koh Tao murders found place on my birthday while I was on the island.

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Where to buy your Thailand prepaid sim card in 2020

Planning to stay for longer than a week in Thailand then head to a phone shop rather than the 7Eleven. Prices drop for monthly plans, but they don’t sell them at the 7Eleven.

Buying a sim card at Bangkok aiport

In Thailand the golden rule applies as well: do not buy a Bangkok airport SIM card if you want to save a couple bucks. No matter which country you are travelling to, never buy a SIM card on the airport as they are always rip offs compared to what they offer in the city. As soon as you walk out of the airport in Bangkok all three companies will welcome you with tourist sim card packages, but they are pricey compared to what you can buy in the city. The same applies for the Don Muang Airport in Bangkok and the one in Phuket. If you have little time and do not care about a couple dollar more or less than get yourself a sim card at the airport.

Free sim card Thailand in 2020

They often lure you with free SIM, but remember nothing is for free especially in touristy countries in South East Asia! The free sim card Thailand in 2020 is just a gift, there is hardly any credit on it and when using they tell you straight away to to top up.

Official mobile internet provider shop

Wherever you go you will stumble upon a shop from DTAC, True Move or AIS. Just Google Map where to find the nearest store. Data plans will be explained very well, English is spoken, prices are the cheapest and they will activate it for you on the spot. Every shopping mall in Bangkok, Phuket, Chiang Mai, Krabi and Koh Samui has mobile internet shops.


In Thailand you can buy a sim card at mostly every 7Eleven, but obviously the Thailand prepaid sim cards you buy here focus on short term tourists. Simple data packages that mostly will do if you are in Thailand for just a week. The hard thing about buying a Thailand sim card in a 7 Eleven is to find someone who can really help you activate your prepaid data package!  People working in the 7Eleven mostly don't speak sufficient English to help you out. On top of that True Move is the only sim card for Thailand they sell as the companies belong to the same holding. Therefore 7Eleven's in Thailand stopped selling DTAC and AIS sim cards. Bottomline of the story is that there is no competition.

I would not recommend you to buy a sim card for traveling in Thailand in 7Eleven.

Here is what one of my readers found for sale in the 7Eleven in December 2019.

Thailand sim card 7eleven

Buy your Thailand sim card online!

Don't want to waste time buying a sim card on your Thailand trip? Order a Thai sim card online and get it shipped to your home address. Very easy and simple and for $25 you get 30 GB data + some credit for calling and texting. Click on the link above to order this AIS Thailand sim card and let it ship to your home address before your trip.

Portable WiFi device for travelers

Some countries like the USA sell 'locked' iPhones and therefore buying an international SIM card is not an option. Or may be you are not convinced exchanging your SIM card for a Thai SIM card. Take a look at Teppy a portable WiFi device to connect for smartphones, laptops and tablets. And the best thing is that it gives you unlimited data plus you can connect up to 5 devices at the same time!

It is a very convenient and reliable internet source while traveling and sometimes easier than going all the way and buying a new SIM card and getting a new phone number.

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I updated this Thailand travel blog in December 2020 to give you the most accurate information possible. Keep in mind that Thai mobile providers are constantly upgrading their coverage, changing their rates and providing better and faster internet. Let me know if you find anything that changed over time and I am happy to add it to my article.

I have already collected more than 40 stamps of this lovely country in my passport. How I afford to travel for years? Click on the link and read my story and tips how to stay on the road as long as me! Let me help you planning your next Thailand itinerary and take a look at my blogs about the land of the smile on my Thailand Page. Curious why I have been to Thailand 17 times? Read more about me and my 5 year around the world trip on my About page.

This is a handy guide with everything you need to know about traveling in Thailand from visas to vaccinations, island hopping to jungle trekking, elephant sanctuaries to affordable luxury hotels, the best hostels, electricity plugs, street food and many more things.

things to know when you travel to thailand

If you have any specific questions about traveling to Thailand then don't hesitate to send me a message on my Instagram account @traveltomtom. Be aware that this could create some serious wanderlust with loads of pictures from Thailand and more than other 100 countries. 

If you are interested to read about my best travel adventures from around the world, those can be found in this link. Or my how to earn money from a travel blog and how I became a professional travel blogger stories are in these links.

Im sure I can help you planning your trip to Thailand or help you travel for less. Have a look at my article how much does a trip to Thailand cost.

Also if this was helpful for you would you like to help me out a little in return? If you could share the link of this article somewhere on the internet that would be awesome. Every tweet on Twitter, Pin on Pinterest or post in a Facebook Group helps me a lot. A small thing for you to do, which can make a big difference for me.

Enjoy your trip to Thailand!

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