Pros and Cons of SIM Services in Vietnam

SIM service provides users with phone numbers for calling, texting, internet access and other services on the mobile network. There are some pros of using SIM services in Vietnam:

  • You can choose a SIM according to their needs and preferences such as 4G SIM and 5G SIM.

  • You can change the carrier without changing the phone number thanks to the mobile number portability (MNP).

  • You can use the sim service overseas through the international roaming service of carriers.

  • Users can save costs when using the plans, promotions, offers of providers.

Vietnam SIM Cards for Tourists

You will be supported when using the SIM service 

Besides, some cons when using SIM services in VIetnam are:

  • The user must register personal information when purchasing a sim and perform administrative procedures related to the sim.

  • Users may experience problems with service quality such as weak waves, disconnection, broken calls and delayed messages.

  • Users may lose their SIM or have their SIM stolen, posing security, personal and financial risks.

  • Users may have to pay high fees when using the sim service overseas or when calling out to out-of-network numbers.

Should you Choose a Physical SIM or eSIM?

A regular SIM or a physical SIM is a small chip that you insert into your phone to connect to a mobile carrier’s network. An eSIM or an embedded SIM is a virtual SIM. It is built into your phone and can be programmed with software to join a carrier’s network. Both types of SIM have their pros and cons, depending on your needs and preferences.

Vietnam SIM Cards for Tourists

Vietnam physical SIM card 

If you want to switch your SIM card between different phones or devices such as tablets, smartwatches, physical SIM can be a good choice. Furthermore, you can keep it as a backup in case you lose your phone or your profile.

Besides, if you want to switch networks easily and quickly without having to go to the store, you can use eSIM. You just need to scan a QR code, use a carrier’s app, or manually enter the network information.

Vietnam SIM Cards for Tourists

You can connect networks quickly

By the way, you can use two SIMs at the same time, one physical and one eSIM depending on your phone model. This allows you to have two phone numbers, one for personal and one for business use, or to use different carriers for different services.

Vietnam SIM Cards for Tourists

Using a Vietnam SIM Card on your phone will depend on your daily needs

Top 3 Vietnam SIM Card for Tourists and Cost

Now that we understand the basics of eSIMs, let's explore the top 3 Vietnam SIM cards for tourists with me.

Viettel Vietnam SIM card

Viettel is a prominent mobile operator in Vietnam, offering reliable services for tourists. Here's what you need to know about Viettel SIM cards:

  • Excellent coverage across the country.

  • Usage time up to 60 days from SIM activation date.

  • Additional perks such as free text messages or calls may be included.

  • Viettel provides a range of data plans, from short-term options for tourists to long-term plans for extended stays.

  • Costs vary based on data allowances and validity periods, starting from 60.000 VND (~ 2.45 USD) per 15-day unlimited internet with good speed.

Vietnam SIM Cards for Tourists

There are 3 Viettel SIM card plans for tourists 

Vinaphone Vietnam SIM card

Another popular mobile network operator for tourists in Vietnam, you can consider the following details about the Vinaphone SIM card:

  • Wide network coverage, ensuring connectivity in urban and rural areas.

  • A diverse range of data plans with various add-ons are available.

  • Special promotions or discounts for tourists might be offered.

  • Costs are competitive, starting from 199.000 VND (~ 8.12 USD) for a Vinaphone tourist SIM during 15 days.

Vietnam SIM Cards for Tourists

You can buy vinaphone SIM card in every mobile stores

Mobifone Vietnam SIM card

Mobifone is known for its quality services and is a suitable choice for tourists exploring Vietnam. Here's an overview of the Mobifone SIM card:

  • Its coverage in big cities and around the coast is good.

  • Additional features such as international calling or data rollover options are available.

  • Mobifone offers various prepaid data packages for tourists, ranging from 109.000 VND (~ 4.45 USD) - 250.000 VND (~ 10.20 USD), depending on the duration and amount of data.

Vietnam SIM Cards for Tourists

Internet and SIM cards in Vietnam

Here's a comparison table summarizing key information about Viettel, Vinaphone, and Mobifone SIM cards in Vietnam






Excellent coverage across the country.

Wide network coverage, ensuring connectivity in urban and rural areas.

Good coverage in big cities and around the coast.

Usage Time

Up to 60 days from SIM activation date.

Not specified, regular tourist SIM validity is typically 15 days.

Not specified, validity may depend on the chosen data package.

Additional Perks

Free text messages or calls may be included.

Special promotions or discounts for tourists might be offered.

Additional features such as international calling or data rollover options are available.

Data Plans

Offers a range of data plans from short-term options to long-term plans.

Offers a diverse range of data plans with various add-ons.

Offers various prepaid data packages for tourists with different durations and data allowances.


Starting from 60,000 VND (~2.45 USD) per 15-day unlimited internet with good speed.

Starting from 199,000 VND (~8.12 USD) for a 15-day Vinaphone tourist SIM.

ranging from 109,000 VND (~4.45 USD) to 250,000 VND (~10.20 USD), depending on duration and data amount.


How much data does a tourist need while on a trip in Vietnam?

The amount of data that a tourist needs while on a trip in Vietnam depends on various factors, such as the duration of the trip, the activities planned and the personal preferences of the traveler. However, if you want to use data services such as streaming videos, uploading photos, or using navigation apps, you can consider using 500 MB per day or 3.5 GB per week.

Vietnam SIM Cards for Tourists

If you use data a lot during the day, you can choose the suitable SIM services

Where can I buy an eSIM in Vietnam?

Acquiring a Vietnam SIM card has become increasingly convenient, with various options available to suit different preferences. 

  • Online

One of the most accessible methods is through online channels. Many mobile operators offer eSIMs on their official websites, allowing travelers to choose plans. Then make secure transactions, and receive digital activation details without the need to visit stores. Here are three websites of above big providers:

Viettel SIM card website: Cổng thông tin chính thức về dịch vụ của Viettel Telecom.

Vinaphone SIM card website: Tổng Công ty Dịch vụ Viễn thông VNPT VinaPhone.

Mobiphone SIM card website: Website đăng ký gói cước 3G/4G/5G Mobifone.

Vietnam SIM Cards for Tourists

Mobifone SIM service website theme

  • Airports

If you're looking for immediate connectivity upon arrival, airports in big cities often have dedicated booths or kiosks where you can purchase and activate SIMs. These airport services cater specifically to tourists, providing a hassle-free solution for obtaining a SIM card or eSIM as soon as you land in Vietnam.

Vietnam SIM Cards for Tourists

You can buy Vietnam SIM cards in kiosks at Noi Bai Airport

  • Travel agencies and hotels

Another convenient option is to check with your travel agency such as New Asia Tours or the hotel where you're staying. Some places collaborate with local telecom providers. They assist in obtaining SIM cards at the hotel reception or through travel agencies. This can be a convenient option if you prefer handling such matters within the comfort of your accommodation.

  • At telecom office

To ensure reliability and authenticity, you can visit the official offices of telecom operators. Offices of providers like Viettel, Vinaphone, and Mobifone are commonly found in urban centers. Below I provide details of transaction points throughout Hoan Kiem District for tourists in Hanoi:

Viettel Phan Chu Trinh:

Address: No.32, Phan Chu Trinh.

Phone: 02462 700 100.

Active hours: 8:00 AM - 8:00 PM.

Vinaphone Dinh Tien Hoang:

Address: No.75A, Dinh Tien Hoang, Hang Trong Ward.

Phone: 024 3825 4320.

Active hours: 7:30 AM - 8:00 PM.

Mobifone Hang Ma:

Address: No.80, Hang Ma.

Phone: 0898 576 268.

Active hours: 8:00 AM - 8:00 PM.

Vietnam SIM Cards for Tourists

Viettel Store in Hoan Kiem, Hanoi

How to use eSIM for a trip?

Now that you're buying a Vietnam SIM card, let's follow the simple steps to ensure a smooth activation and usage during your trip: 

  1. Ensure that your device supports eSIM technology. 

  2. Contact the mobile operator via online chat, phone calls or in-person assistance at their offices.

  3. Be ready to provide the necessary details for activation. This may include personal information, the unique eSIM code and any other required data.

  4. Enter the provided information and follow the notification to complete the activation process.

  5. Confirm that your device shows connectivity by checking for signal bars or the "eSIM" label in your network settings.

Some notes when using Vietnam SIM Card

While using a Vietnam SIM card, keep the following tips in mind:

  • Check the network coverage area of your chosen mobile operator, especially if you plan on traveling to remote areas such as Ta Van Village and Hang Tau Village in the northwest region.

  • Be aware of the validity period of your data plan to avoid unexpected disruptions in service.

  • Familiarize yourself with emergency numbers in Vietnam for quick assistance in case of any issues such as 115 is ambulance number and 113 is police number.

  • Keep track of your data usage to avoid exceeding your plan limits and incurring additional charges.

Looking for more information? Our article on Vietnam travel guide!

Through my blog, I believe you have information about Vietnam SIM cards, why you should buy one and how to use it. Besides, I recommend to you the top 3 mobile operators and the notes when using. If you’d like to explore the Vietnam package tour, please contact New Asia Tours on our website.