The best data SIM cards to visit Vietnam

Vietnam is an exotic country, no doubt about it, the best things you will see in Hanoi, Da nang or Ha-long Bay will be the lovely beaches, Buddhist temples, beautiful sunsets. If you are looking to relive those experiences when you get home by sharing the best of your trip then you need help with an internet connection in Vietnam. This article shows you the best data sim cards you can buy from an online store before you go to Vietnam. 

Besides, We are presenting reasons you should buy from an online store, it means before to take to the skies. What type of advantages you are going to get, what are the technical features of every card, where to buy them and how much the cards are for.

Don’t worry about roaming bills back home in a flash, we will show you how much you could be spending by purchasing sim cards instead of other technologies. Don’t miss out on the opportunity to take the best photos or stay in touch with your loved ones through the best coverage in the country.

Let’s take a look.

Why buy a data SIM cards to Vietnam?

Travelling and always getting connected has become a basic necessity, but the costs can be high. You can opt for the famous roaming, or you will be in for a nasty surprise on your bill when you return. On the other hand, there is the option of the famous Pocket WIFI but you will be carrying an additional device and risk paying a fine in case of damage or loss.

We know you have the option of data sharing, however, with a SIM card that avoids roaming or pocket WIFI you can also share data. Let’s talk about all the SIM cards you can choose from, either from an online store or in Vietnam when you get there.

Which data SIM cards to Vietnam offers me the most data at the best price?

Although, we will take a look at mobile operators that provide data prepaid sim cards. We want you to get an alternative option to choose the best sim card at affordable prices under the high coverage too. 

It may be easy for us to tell you it’s an X or Y card, but we don’t know what you’ll need it for. Whether your trip is simply for leisure or business, there are many reasons why you might travel.

However, for us, the best option is the Holafly card. Why? You’ll see that later when you see the comparison between this card and the other options available. With Vietnamobile’s coverage, it offers you Internet, for 17 euros: It is a prepaid SIM card with 3 GB of data per day, for 8, 15 and 20 days of stay in this country. Note that you can also share data with other devices, such as Pocket Wifi.

Where to buy the best data SIM card for Vietnam?

It depends on whether you decide to buy your Vietnam SIM card before or during your trip. In the following paragraphs, we will show you some alternatives. We recommend that you do it before, so you will avoid worrying about where to buy your data SIM card when you land in Vietnam.

To buy my Vietnam data SIM card from an online store (recommended)

The first and most convenient option is to buy your SIM card for Vietnam from an online store. It’s simple, don’t worry about arriving and seeing where to get a sim card and start looking for the best option. You already know that once the plane has landed and while you are waiting to get out of it, you can change your SIM card, that is all. All you have to do is setting up your mobile, write to your family that you are fine and go and get your bags. All you can think about is that you want to get away quickly to see the sights or simply rest from a long journey.

selfie vietnam
Take your SIM card with you to post your selfies on social media. Source: Ketut Subiyanto on Pexels
sim card to travel vietnam phone street
Take your data SIM card to use your GPS. Source: Zen Chung at Pexels

HolaFly Vietnam data SIM card

This card works with the Truemove/Dtac network, two of the primaries operators in Vietnam. It also offers two options: 3GB of data for eight days at €17 and 4GB of data for 12 days at €26. One day of data for €2.13, an affordable price compared to other options.


  • 24/7 technical support in English, very convenient to solve any problem.
  • The 8-day tariff includes a local number to receive free calls.
  • The 8-day card counts 100 baht of local calling.
  • Data sharing with other devices.
  • Two carriers are available to connect.
  • Easy to activate and set up.
  • Free shipping, unlike other options that charge you from 2 to 20 euros.


  • If you want to receive your SIM card as soon as possible, you will have to pay extra.
  • No TOP-UP, Buy more with one card and receive special discounts.

Have you ever wondered how much data you should buy? 

We don’t know anything about it. There are social networks that consume more data, video calls, calls through APPs, among others that in the end, we do not know if the data we buy is enough.

One SIM Card for Vietnam

This SIM card type allows you to include as much data, calls and SMS as you want. Please note that both the card itself and the shipping costs extra. 

It’s up to the number of days you wish to travel to Vietnam, as well as the amount of data you want to use per day. Finally, you will have several options.


  • If you buy only the SIM card, you will receive additional credit, data, calls and SMS of around 10 euros.
  • It has 17 types of data packages.


  • Shipping and card price is not free.
  • You must additionally pay for your card to top up the data or calls, which adds a lot to the price.
  • It is one of the most expensive alternatives, more than 80 euros.
  • Cellular Abroad SIM card for Vietnam
  • Finally, there is the Cellular Abroad option, a 5GB data SIM card for Vietnam for 30 days at 59.95 USD. Among the advantages and disadvantages of this SIM are


  • You can add additional calling and texting packages.
  • 4 data plans available.
  •  Each one costs 59,95 USD
  • Multiple country coverage.


  • High service prices
  • Very expensive or not fast delivery
  • No technical support in English

How much does an Internet SIM card for Vietnam cost?

You already knew the features, advantages and disadvantages of each alternative sim card. Then, we will present you a comparison of Internet SIM cards for Vietnam, the ones that appear on their website and online advertisements and the final prices as you can see who charges you only what they promote.

Sim card price (€)Amount data price (€)Shipping price (€)Fixed price (€)
Holafly0 €32 € 6GB0 €17 €
One SIM Card
27,42 €50,35 €2,74 €80,51 €
Cellular Abroad
0 €49,39 € 5GB14,01 €63,4 €
Table – Vietnam SIM card price comparison of online providers Holafly, SimOptions and One SIM Card.

Holafly is the only option that charges you less because it only charges you once. Their price includes the card itself, the data and even the shipping itself. If you are running the time you can choose to express or express delivery.

To buy my data sim cards in Vietnam

You can buy your SIM card in Vietnam at various places throughout the country as From airports, large shops, shops of the operator Viettel, Vinaphone although there are only shops in Hanoi, Danang and Hochiminh. There is also the operator Vietnamobile. Buy the SIM card in stores like (Seven Eleven, Vinmart and Thegioididong), kiosks near your accommodation or central points of the city.

Be careful because some data SIM cards will stop working the day after your trip to Vietnam. Best in official shops of each operator, or the Thegioididong shops, easily identifiable with yellow and black colours.

As you can see, the options for buying a SIM card in Vietnam are many and varied. But language can be a barrier, so we recommend that you purchase your SIM card before you travel.

In Vietnam, you will hear some Internet operators, but the following are the ones we consider the most relevant, Viettel, Vinaphone and Vietnamobile, now we show you the characteristics of their SIM for tourists, rates, advantages and disadvantages.


The Vietnamese state-owned operator Viettel accounts for 40% of all mobile line consumers in Vietnam. The internet packages will activate by sending text messages, this SIM card may include calls to local and non-Vietnamese numbers.


  • Some SIM cards include local calls.
  • Several days to choose


  • The amount of data they offer is small compared to data-only prepaid SIM cards like Holafly.
  • Their website, and help, is only in the local language, Vietnamese.


Vietnam’s second-largest operator is also state-owned. Vinaphone’s data-only SIMs can operate on tablets and routers. It has data packs for both 3G or 4G speed internet, be aware of this when buying a Vinaphone data pack.


  • Your data-only SIM card can operate on tablets and routers.
  • Some cards offer you unlimited data, but keep in mind that they are on 2G.


  • Some data-only packages are only on 3G.
  • Their website is only in Vietnamese or English.
 data SIM card is useful for making video calls
A data SIM card is useful for making video calls. Source: Zen Chung on Pexels.
 how useful the internet is in Vietnam
Can you imagine how useful the internet is in Vietnam? Source: Zen Chung on Pexels


This mobile operator has good coverage, covering 90% of the country and 63 cities in the country. Vietnamobile has a variety of prepaid SIM card options for Vietnam, ranging from 2 GB to 12 GB for one day and up to 30 days.


  • Many data plans to choose
  • The data amount per day is not a small thing but isn’t an unlimited internet connection.


  • Promotions will activate by sending an SMS.
  • Their website is only partly in English.

Vietnam data sim cards for travelling, which one to buy?

After reading this you have probably decided to buy the Holafly Vietnam data SIM card for your trip, for a price of 17 € with 3 GB of data for 8 days. It also charges €26 for 4GB of data for a 12-day stay.

This SIM card also offers you the following benefits:

  • Mobile data sharing.
  • You will be able to receive free local calls.
  • 24-hour help in English.
  • Keep your WhatsApp line and stay connected to friends and family.
  • Free shipping to receive your SIM card within 72 business hours.


How to get a connection in Vietnam?

It’s probably you decide to carry the SIM card. However, you might pay extra charges for the roaming use or rent the WIFI out. If you don’t feel cosy, you may connect from the free connection around able places like the airport.

Will my mobile phone work on Vietnam’s mobile networks?

The 4G/LTE coverage for Internet in Vietnam from the three main operators in Vietnam covers 95% of the country. In any case, if you want to check the functionality, you can visit websites like, especially if you have an older device.

SIM card for the Internet in Vietnam and Cambodia

Holalfy has an option that will allow you to have coverage in Asia, its Asia Multi-Country data SIM card, which includes 13 destinations in this region, including Cambodia. Internet for 12 days with 4GB of data at 4G speed, and you can share data with other mobile devices.

How to choose a data SIM card for the internet and phone in Vietnam?

When choosing your card, consider these aspects: Operator coverage, price, amount of data, local calls, local number and if you are allowed to share data. Beside you count on the technical support, both languages, Spanish and English are available. 

How much does a SIM card for Vietnam cost?

For 17 € you enjoy the internet, this is the fixed price for the sim cards and each one is displayed differently. The cards are available to make TOP-UP but not each one. The technical support, local phone number, only data service, free shipping or any other features may change at least. If you are interested in buying a sim card check out the mobile operator products on the official website.

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