Introduction
Staying connected in Vietnam makes travelling easier, whether you need Google Maps, translation apps, ride-hailing services or a way to contact hotels and tour operators. Choosing the right prepaid SIM card can help you access mobile data without relying entirely on public Wi-Fi or paying expensive international roaming charges.
Vietnam has several mobile network providers, including Viettel, Vinaphone and MobiFone. Travellers can choose a physical SIM card or an eSIM, depending on their phone compatibility, data requirements and travel plans.
What to Consider Before Choosing a SIM Card
Before buying a Vietnam SIM card, consider these key factors:
- Network coverage: Important if you plan to visit rural areas, mountains or destinations outside major cities.
- Data allowance: Choose a plan that matches your use of maps, social media, video calls and streaming.
- Plan duration: Select a package that remains active for the full length of your visit to Vietnam.
- Price: Compare the total cost rather than choosing a plan based only on its advertised data allowance.
- Ease of activation: Check registration requirements and whether your phone supports eSIMs.
What This Guide Covers
This guide compares Vietnam’s main mobile providers, explains available SIM options, outlines where to buy and activate a SIM card, and provides practical advice on coverage, costs and data usage.
The aim is to help you choose a suitable option for your trip, whether you are visiting Vietnam for a few days, staying for several weeks or travelling between multiple destinations.
Plan availability, prices and registration requirements can change, so check the latest information from the relevant provider before purchasing.
Best SIM Cards for Tourists in Vietnam
Vietnam’s main mobile network providers are Viettel, Vinaphone and MobiFone. All three offer mobile connectivity for travellers, but the most suitable choice depends on where you plan to travel, how much data you need and whether you prefer a physical SIM or eSIM.
1. Viettel – Best for Wider Travel Coverage
Viettel is a strong option for travellers planning to visit several regions of Vietnam, especially destinations outside major cities.
Its tourist SIM options include data-focused and combination plans, and the provider supports eSIM services on compatible devices.Â
Best for:
- Travellers visiting multiple destinations
- Trips to mountainous and rural areas
- Visitors who rely heavily on mobile maps
- Travellers looking for physical SIM or eSIM options
My Take: I would shortlist Viettel first for a multi-destination trip, particularly if the itinerary includes northern mountain areas. Check the specific plan and coverage for your destinations before purchasing.
2. Vinaphone – Worth Comparing for City-Based Trips
Vinaphone is another major Vietnamese mobile provider. It is worth comparing its available prepaid data packages if your trip focuses mainly on larger cities and established tourist destinations.
Before choosing a plan, check its data allowance, validity period, calling benefits and whether the package is available to newly arriving tourists.
Best for:
- Travellers mainly visiting major cities
- Visitors comparing prepaid data packages
- Tourists who find a suitable plan through an official store
My Take: Vinaphone is worth considering alongside Viettel rather than assuming that the cheapest advertised package will be the best value. Confirm the current tourist offer and its conditions before buying.
3. MobiFone – A Tourist eSIM Option for International Visitors
MobiFone offers dedicated services for international visitors, including a tourist eSIM registration option. Its official travel service currently advertises a free eSIM with 10GB of data for 24 hours, subject to eligibility and activation requirements. Paid packages are also available.Â
Best for:
- Travellers whose phones support eSIM
- Visitors who want to arrange connectivity online
- Tourists comparing packages that include local calling minutes
- Short stays or longer visits with an appropriate top-up plan
My Take: MobiFone is worth checking if you want an eSIM and prefer to compare the available tourist offers before arrival. Read the activation conditions carefully, especially for free or promotional packages.
Which SIM Card Should You Choose?
| Mobile Provider | Best For | What to Check |
| Viettel | Travelling across multiple regions, including rural areas | Coverage, data allowance and plan validity |
| Vinaphone | Comparing prepaid options for city-based trips | Tourist plan availability, price and data allowance |
| MobiFone | Travellers interested in tourist eSIM offers | eSIM eligibility, activation requirements and package validity |
These are starting recommendations, not guarantees of the best price or signal in every location. Coverage, plan eligibility and available offers can vary.
My Take: For most first-time visitors, I would compare Viettel’s coverage and tourist packages first, then check Vinaphone and MobiFone for a better match on price, data allowance or eSIM convenience. The next step is to compare the actual plans and validity periods before making a final choice.
Vietnam SIM Card Plans, Prices & Comparison
Before buying a prepaid SIM card in Vietnam, compare the data allowance, validity period, calling benefits and total cost. Choosing a package with a larger data allowance may not be worthwhile if its validity period does not cover your entire stay.
Vietnam SIM Card Comparison
The following table includes published offers from Vietnamese mobile operators. Availability and eligibility may differ for tourists, so confirm the conditions before purchasing.
| Provider | Plan or Offer | Data Allowance | Validity | Price |
| Viettel | New-customer eSIM offer | 10 GB per day | 30 days | VND 125,000 |
| MobiFone | Free Travel eSIM | 10 GB total | 24 hours | Free, subject to eligibility |
| MobiFone | FR10 | 50 GB total | 10 days | VND 150,000 |
| MobiFone | FR30 | 150 GB total | 30 days | VND 250,000 |
Viettel’s published eSIM offer was announced on 24 September 2026. MobiFone lists the Travel eSIM and FR10/FR30 packages on its official website. These offers are subject to their respective terms and eligibility requirements.Â
Note: These are not perfectly equivalent plans. The Viettel offer is a new-customer eSIM promotion, while MobiFone’s offers are specifically presented for international tourists. Confirm whether each offer is still available when you travel.
Budget, Mid-Range & High-Data Options
Budget option: If you need connectivity mainly for maps, messaging and occasional browsing, consider a short-validity package or an eligible free introductory offer.
Mid-range option: For a trip lasting around a week, compare packages that provide enough data for daily navigation, restaurant searches, bookings and social media.
High-data option: Travellers who frequently upload photos, stream videos or use mobile hotspots should compare daily data limits, high-speed allowances and hotspot restrictions—not just the advertised total data.
Calls, SMS & Validity
Check whether your chosen package includes a Vietnamese phone number, local calling minutes or SMS. Data-only plans may not provide the calling features you need to contact hotels or local businesses.
Also confirm when validity begins. Some offers start when activated rather than when purchased, and promotional packages may have additional registration requirements.
How to Choose the Best Value
Before making a purchase, check these four details:
- Total data: Is the allowance daily or for the entire package period?
- Validity: Does it cover your full stay?
- Calls and SMS: Are local calls included, or is the plan data-only?
- Eligibility: Can an international tourist register and activate the package?
My Take: For a short visit, compare the total cost and validity first. For a longer trip, look for a package that provides sufficient data throughout your stay without requiring frequent top-ups. Always confirm the latest offer through the provider’s official website or store before paying.
Physical SIM vs eSIM for Vietnam
Travellers visiting Vietnam can choose between a traditional physical SIM card and an eSIM. Both can provide mobile data, but the right option depends on your phone, travel plans and whether you need a Vietnamese phone number.
Physical SIM vs eSIM: Key Differences
| Feature | Physical SIM | eSIM |
| Installation | Insert a SIM card into your phone | Download a digital SIM profile |
| Phone compatibility | Works with phones that support the SIM size and network | Requires an eSIM-compatible device |
| Purchase | Available at airports and mobile operator stores | Available online or through supported providers |
| Activation | May require registration and activation at purchase | Usually activated through a QR code or provider instructions |
| Convenience | Requires handling and storing a small card | No physical card to carry |
| Local phone number | Available with eligible voice-and-data plans | Depends on the specific eSIM package |
| Keeping your home SIM | Depends on your phone’s SIM configuration | Often possible alongside your home SIM on compatible phones |
Not every eSIM is the same. Tourist eSIM plans may be limited to internet access, whereas certain packages from Vietnamese carriers include a local phone number and voice-call benefits. Check the details before purchasing.Â
Advantages and Disadvantages
Physical SIM Card
Advantages
- Available at airport counters and operator stores.
- Can provide a local number for calls and messages.
- Useful for phones without eSIM support.
Disadvantages
- Requires inserting and removing a card.
- Your phone needs an available SIM slot.
- You need to keep your home SIM safe if you remove it.
eSIM
Advantages
- Can often be purchased and installed before departure.
- No physical card needs to be inserted.
- Compatible phones may allow you to keep your home number active while using Vietnamese mobile data.
Disadvantages
- Your phone must support eSIM.
- Some plans provide data only, without local calls or SMS.
- Activation and identity-verification requirements vary by provider.
Check Phone Compatibility Before Buying
Before choosing an eSIM, confirm that your phone model supports eSIM and is not locked to a mobile carrier. Also check whether your device supports using your home SIM and travel eSIM together.
For a physical SIM, make sure your phone is unlocked and compatible with the network bands used by the Vietnamese operator.
Which Option Should You Choose?
- Choose a physical SIM if your phone does not support eSIM or you want help with registration at an operator store.
- Choose an eSIM if your phone supports it and you prefer arranging connectivity online before arrival.
- Choose a local voice-and-data package if you need a Vietnamese phone number for local calls.
- Keep your home SIM active where possible if you need to receive messages on your usual number, but check your home operator’s roaming charges.
My Take: For a compatible, unlocked phone, an eSIM is often the more convenient choice because it can be arranged before departure. However, if you need a local number or your phone does not support eSIM, a registered physical SIM or local voice-and-data eSIM may be more suitable.
Where to Get a Vietnam SIM and Set It Up
Tourists can obtain a Vietnam SIM card at the airport, through official mobile operator stores, or from supported online eSIM providers. Your choice will depend on whether you need internet access as soon as you arrive or would rather organise your mobile service in advance.
Places to Purchase a Vietnamese SIM Card
1. Airport SIM Counters
Major international airports, including those serving Hanoi, Ho Chi Minh City and Da Nang, may have SIM vendors or mobile service counters.
Advantages:
- Convenient immediately after arrival
- Staff may help with installation and activation
- Useful if you need mobile data for navigation or transport
What to check: Compare the package price, data allowance, validity and provider. Confirm that the SIM is registered correctly and working before leaving the counter.
2. Official Mobile Operator Stores
Official Viettel, Vinaphone and MobiFone stores are worth considering if you want to compare local packages and clarify registration requirements.
Advantages:
- More direct access to provider information
- Assistance with activation and troubleshooting
- A chance to confirm the terms of the package you purchase
Bring your passport and ask whether the particular tourist package is available to foreign visitors.
3. Authorised Retailers
Some authorised mobile retailers sell prepaid SIM cards. If you choose this option, confirm that the retailer can register the SIM properly and explain the package terms.
Avoid purchasing an already-activated SIM from an uncertain source, as registration and ownership issues may affect its use.
4. Online eSIM Providers
Travellers with eSIM-compatible phones can often arrange a suitable mobile data package through an online provider before travelling.
Advantages:
- Convenient advance preparation
- No need to collect a physical card
- Certain packages allow you to set up the eSIM on your device ahead of your journey.
Find out when the validity period begins—during setup or upon the first network connection—and verify whether the package provides a Vietnamese number alongside data or supports internet access only.
How to Activate Your Vietnam SIM Card
The exact process depends on the operator and package, but these steps provide a useful starting point:
- Check compatibility: Make sure your phone is unlocked and supports the SIM type.
- Prepare identification: Keep your passport available for registration if required.
- Purchase a suitable plan: Confirm its validity, data allowance and calling benefits.
- Complete registration: Follow the provider’s instructions and provide the required identification.
- Install the SIM or eSIM: Follow the operator’s setup instructions.
- Test the connection: Check mobile data and any included calling features before relying on the service.
How to Check Your Data Balance
Balance-check methods vary by provider and package. Use the operator’s official app, website, confirmation message or customer-support instructions to check your remaining data and expiry date.
If your connection does not work, verify that the plan is active, mobile data is enabled and the correct SIM is selected for data. Some eSIMs may also require specific APN settings or data roaming to be enabled according to the provider’s instructions.
My Take: If you want a physical SIM, buying from an official store or a reliable airport counter can make registration easier. If you prefer an eSIM, arrange it in advance, but check the activation conditions so you do not use up a short-validity package before your trip begins.
Network Coverage & Staying Connected
Vietnam has mobile networks serving major cities, tourist destinations and many rural areas. However, connection quality can vary depending on the provider, terrain and distance from populated areas. Choosing a suitable network is especially important if your itinerary includes mountains, countryside or remote locations.
Coverage in Major Cities & Tourist Destinations
In major cities such as Hanoi, Ho Chi Minh City and Da Nang, travellers can generally expect mobile connectivity from established providers. Coverage is also available in many popular tourist areas, although signal strength and data speeds vary by location.
If you plan to travel across several regions, compare network coverage for your actual destinations rather than choosing a SIM based on price alone.
Connectivity in Rural & Mountainous Areas
Remote destinations can present more connectivity challenges than city centres. Mountains, valleys, forests and isolated roads may affect signal strength.
If your itinerary includes places such as Ha Giang, Sapa or rural areas of northern Vietnam, check the provider’s coverage information before choosing a plan.
Useful precautions include:
- Downloading offline maps before leaving a city.
- Saving hotel addresses and booking details for offline access.
- Keeping important travel information available without an internet connection.
- Checking connectivity options before joining remote tours.
Internet Access on Trains & Buses
Mobile data may work during road and rail journeys, but coverage can fluctuate along the route. Tunnels, mountainous terrain and remote stretches may temporarily interrupt your connection.
Do not rely entirely on mobile data for tickets, navigation or essential travel information. Download the information you need before departure.
Hotspot Availability & Data Usage
Many travellers use their Vietnam SIM or eSIM to connect laptops, tablets or other devices. However, hotspot availability and restrictions depend on the package.
Before buying, check whether tethering is supported and whether hotspot usage counts toward the same data allowance.
To manage your data:
- Use Wi-Fi for large downloads when practical.
- Disable automatic video playback on mobile data.
- Download music, maps and entertainment in advance.
- Check background app usage.
- Monitor your remaining allowance and plan expiry.
Staying Connected Safely
Use trusted networks when accessing sensitive accounts. Do not submit login credentials or financial details over untrusted public Wi-Fi; switch to your mobile connection when handling sensitive online activities.
My Take: For a multi-destination trip, I would prioritise a provider with suitable coverage along the entire route. Downloading offline maps and keeping essential bookings accessible offline are worthwhile precautions, regardless of which SIM card you choose.
Choosing the Right SIM for Your Trip
When selecting a Vietnamese SIM, consider your trip duration, expected internet usage and whether having a Vietnamese contact number is important to you. Reviewing your requirements in advance makes it easier to choose a suitable package without spending extra on unnecessary services.
Best SIM for Short Visits
If you are visiting Vietnam briefly, choose a short-term plan with sufficient data for navigation, communication, travel reservations and routine internet use.
An eSIM designed for travellers offers a convenient digital option for compatible devices, while a traditional SIM card suits those who want to purchase a card and set it up once they reach Vietnam.
Best SIM for Longer Stays
If you are staying for several weeks, compare 15-day and 30-day packages, along with their renewal and top-up options.
Check the total cost for your entire stay rather than choosing a package based only on its daily price. Also confirm whether the SIM remains active after the included data expires.
Best SIM for Families & Groups
Families and groups can choose between individual SIMs and a package that supports hotspot sharing.
A hotspot can reduce the need to buy separate data packages, but it depends on the plan’s tethering rules and the amount of data everyone uses. Separate SIMs may be more practical when people travel independently.
Best SIM for Heavy Data Users & Remote Workers
Travellers who stream videos, upload large files or attend online meetings should prioritise reliable coverage, sufficient high-speed data and hotspot support.
Before purchasing, check:
- Whether the advertised allowance is daily or for the entire package.
- Whether speeds are reduced after a specified limit.
- Whether tethering is permitted.
- Whether the package supports the activities you need.
For work-related travel, consider having a backup connectivity option rather than depending on a single mobile connection.
Common SIM Card Mistakes to Avoid
A few checks can prevent unnecessary problems:
- Choosing by price alone: A cheap package may have insufficient data or a short validity period.
- Misunderstanding the data allowance: Daily data limits differ from total package allowances.
- Ignoring phone compatibility: Your device must support the chosen SIM type and be unlocked where required.
- Overlooking registration: Confirm the identification requirements for your selected plan.
- Assuming every eSIM includes calls: Some travel eSIMs provide data only.
- Forgetting activation timing: Check when the validity period begins.
- Ignoring hotspot restrictions: Tethering may be limited or unavailable on certain packages.
My Take: For most tourists, a suitable SIM is one that stays active for the entire trip, offers enough data for everyday use and works in the places on the itinerary. Compare the complete package terms before choosing the cheapest advertised option.
FAQs
Which Vietnamese Mobile Network Should Visitors Choose?
Viettel is a useful starting point for travellers visiting multiple regions, while Vinaphone and MobiFone are also worth comparing. Choose based on coverage along your itinerary, data allowance, validity and price.
Are SIM Cards Available for Purchase at Vietnamese Airports?
Yes, SIM cards and tourist connectivity options are commonly available at major international airports. Another option is to visit a shop authorised by a Vietnamese telecom provider. Check the available packages and registration requirements before purchasing.
Is Passport Identification Required When Purchasing a Tourist SIM in Vietnam?
Mobile providers may ask to see your passport when registering the SIM card. Requirements can vary by provider and purchase location, so confirm the latest rules before buying.
Should You Choose a Digital eSIM or a Traditional SIM Card for Vietnam?
A digital SIM lets you purchase a plan online and set it up directly on a compatible device. Before choosing one, confirm your phone supports eSIM technology and check whether the package provides internet access alone or includes voice calls and a Vietnamese number.
What Data Allowance Is Suitable for Seven Days in Vietnam?
For a week-long trip, your data needs depend on how often you use maps, social media, video streaming and video calls. Light users may need only a modest allowance, while heavy users should compare larger packages and daily data limits. Downloading offline maps and using Wi-Fi when available can reduce consumption.
Does a Vietnam Tourist SIM Work Throughout the Country?
A SIM may work across many destinations, but coverage and connection quality vary by network and location. If you plan to visit cities, rural areas and mountain destinations, compare network coverage along your route rather than relying only on coverage in Hanoi or Ho Chi Minh City.
Can I Keep Using WhatsApp With My Existing Number?
Yes. Your WhatsApp account can usually remain linked to your original number while a Vietnamese SIM or eSIM supplies the internet connection. Installing a new SIM does not automatically change the number registered to your WhatsApp account.
Is It Possible to Set Up a Vietnamese eSIM Before Your Trip?
Yes, some providers offer eSIM packages that can be purchased online before your trip. Before purchasing, verify device compatibility, follow the provider’s setup guidance and confirm the plan’s activation timing to avoid using up its validity too soon.
Do Vietnam Tourist SIM Cards Include Calls and Text Messages?
Not all packages include calls or SMS. Some are data-only, while others may offer a local number and voice services. If you need to call hotels, tour operators or local contacts, confirm that the selected package supports those services.
Which Details Matter When Choosing a SIM Package for Vietnam?
Before paying, check the network, total data allowance, validity period, speed restrictions, hotspot support, local calling options and registration requirements. Compare the complete package details instead of choosing based on price alone.
